Constants (Apache Hadoop Amazon Web Services support 3.4.0 API)

java.lang.Object
- org.apache.hadoop.fs.s3a.Constants

```
@InterfaceAudience.Public
 @InterfaceStability.Evolving
public final class Constants
extends Object
```
Constants used with the S3AFileSystem. Some of the strings are marked as Unstable. This means that they may be Unsupported in future; at which point they will be marked as deprecated and simply ignored. All S3Guard related constants are marked as Deprecated and either ignored (ddb config) or rejected (setting the metastore to anything other than the null store).
Timeout default values are declared as integers or long values in milliseconds and occasionally seconds. There are now Duration constants for these default values; the original fields are retained for compatibility, and derive their value from the Duration equivalent.
New timeout/duration constants do not get the equivalent integer/long fields.

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`ACCESS_KEY`
`static String`	`ALLOW_REQUESTER_PAYS` Configuration option for S3 Requester Pays feature: "fs.s3a.requester.pays.enabled".
`static String`	`ASSUMED_ROLE_ARN` ARN of AWS Role to request: "fs.s3a.assumed.role.arn".
`static String`	`ASSUMED_ROLE_CREDENTIALS_DEFAULT`
`static String`	`ASSUMED_ROLE_CREDENTIALS_PROVIDER` List of providers to authenticate for the assumed role: "fs.s3a.assumed.role.credentials.provider".
`static String`	`ASSUMED_ROLE_POLICY` JSON policy containing the policy to apply to the role: "fs.s3a.assumed.role.policy".
`static String`	`ASSUMED_ROLE_SESSION_DURATION` Duration of assumed roles before a refresh is attempted.
`static String`	`ASSUMED_ROLE_SESSION_DURATION_DEFAULT` Default duration of an assumed role: "1h".
`static String`	`ASSUMED_ROLE_SESSION_NAME` Session name for the assumed role, must be valid characters according to the AWS APIs: "fs.s3a.assumed.role.session.name".
`static String`	`ASSUMED_ROLE_STS_ENDPOINT` Security Token Service Endpoint: "fs.s3a.assumed.role.sts.endpoint".
`static String`	`ASSUMED_ROLE_STS_ENDPOINT_REGION` Region for the STS endpoint; needed if the endpoint is set to anything other then the central one.: "fs.s3a.assumed.role.sts.endpoint.region".
`static String`	`ASSUMED_ROLE_STS_ENDPOINT_REGION_DEFAULT` Default value for the STS endpoint region; needed for v4 signing: "".
`static String`	`ASYNC_DRAIN_THRESHOLD` The threshold at which drain operations switch to being asynchronous with the schedule/wait overhead compared to synchronous.
`static String`	`AUTHORITATIVE_PATH` Paths considered "authoritative".
`static String`	`AWS_AUTH_CLASS_PREFIX` Prefix of auth classes in AWS SDK V1.
`static String`	`AWS_CREDENTIALS_PROVIDER`
`static String`	`AWS_CREDENTIALS_PROVIDER_MAPPING` AWS credentials providers mapping with key/value pairs.
`static String`	`AWS_REGION` AWS S3 region for the bucket.
`static String`	`AWS_S3_ACCESSPOINT_REQUIRED` Require that all S3 access is made through Access Points.
`static String`	`AWS_S3_CENTRAL_REGION` The special S3 region which can be used to talk to any bucket.
`static String`	`AWS_S3_CLASSLOADER_ISOLATION` Are extensions classes, such as `fs.s3a.aws.credentials.provider`, going to be loaded from the same classloader that loaded the `S3AFileSystem`? It is useful to turn classloader isolation off for Apache Spark applications that might load `S3AFileSystem` from the Spark distribution (Launcher classloader) while users might want to provide custom extensions (loaded by Spark MutableClassloader).
`static String`	`AWS_S3_DEFAULT_REGION` The default S3 region when using cross region client.
`static String`	`AWS_S3_VECTOR_ACTIVE_RANGE_READS` Maximum number of range reads a single input stream can have active (downloading, or queued) to the central FileSystem instance's pool of queued operations.
`static String`	`AWS_S3_VECTOR_READS_MAX_MERGED_READ_SIZE` What is the largest merged read size in bytes such that we group ranges together during vectored read.
`static String`	`AWS_S3_VECTOR_READS_MIN_SEEK_SIZE` What is the smallest reasonable seek in bytes such that we group ranges together during vectored read operation.
`static String`	`AWS_SERVICE_IDENTIFIER_DDB` Deprecated.
`static String`	`AWS_SERVICE_IDENTIFIER_S3`
`static String`	`AWS_SERVICE_IDENTIFIER_STS`
`static String`	`BUCKET_REGION_HEADER` The bucket region header.
`static String`	`BUFFER_DIR`
`static String`	`BULK_DELETE_PAGE_SIZE` Number of objects to delete in a single multi-object delete "fs.s3a.bulk.delete.page.size".
`static int`	`BULK_DELETE_PAGE_SIZE_DEFAULT` Default Number of objects to delete in a single multi-object delete: 250.
`static String`	`CANNED_ACL`
`static String`	`CENTRAL_ENDPOINT` The central endpoint :"s3.amazonaws.com".
`static String`	`CHANGE_DETECT_MODE` Mode to run change detection in.
`static String`	`CHANGE_DETECT_MODE_CLIENT` Change is detected on the client side by comparing the returned id with the expected id.
`static String`	`CHANGE_DETECT_MODE_DEFAULT` Default change detection mode: server.
`static String`	`CHANGE_DETECT_MODE_NONE` Change detection is turned off.
`static String`	`CHANGE_DETECT_MODE_SERVER` Change is detected by passing the expected value in the GetObject request.
`static String`	`CHANGE_DETECT_MODE_WARN` Change is detected on the client side by comparing the returned id with the expected id.
`static String`	`CHANGE_DETECT_REQUIRE_VERSION` If true, raises a `RemoteFileChangedException` exception when S3 doesn't provide the attribute defined by fs.s3a.change.detection.source.
`static boolean`	`CHANGE_DETECT_REQUIRE_VERSION_DEFAULT` Default change detection require version: true.
`static String`	`CHANGE_DETECT_SOURCE` Where to get the value to use in change detection.
`static String`	`CHANGE_DETECT_SOURCE_DEFAULT` Default change detection mechanism: eTag.
`static String`	`CHANGE_DETECT_SOURCE_ETAG` eTag as the change detection mechanism.
`static String`	`CHANGE_DETECT_SOURCE_VERSION_ID` Object versionId as the change detection mechanism.
`static String`	`CHECKSUM_VALIDATION` Should checksums be validated on download? This is slower and not needed on TLS connections.
`static boolean`	`CHECKSUM_VALIDATION_DEFAULT` Default value of `CHECKSUM_VALIDATION`.
`static String`	`CONNECTION_ACQUISITION_TIMEOUT` Acquisition timeout for connections from the pool: "fs.s3a.connection.acquisition.timeout".
`static String`	`CONNECTION_IDLE_TIME` Maximum idle time for connections in the pool: "fs.s3a.connection.idle.time".
`static String`	`CONNECTION_KEEPALIVE` Should TCP Keepalive be enabled on the socket? This adds some network IO, but finds failures faster.
`static String`	`CONNECTION_TTL` Configuration option to configure expiration time of S3 http connection from the connection pool: "fs.s3a.connection.ttl".
`static String`	`CONTENT_ENCODING` Content encoding: gzip, deflate, compress, br, etc.
`static String`	`CUSTOM_SIGNERS` List of custom Signers.
`static boolean`	`DEFAULT_ALLOW_REQUESTER_PAYS` Default configuration for "fs.s3a.requester.pays.enabled": false.
`static String`	`DEFAULT_ASSUMED_ROLE_STS_ENDPOINT` Default endpoint for session tokens: "".
`static int`	`DEFAULT_ASYNC_DRAIN_THRESHOLD` This is a number based purely on experimentation in `ITestS3AInputStreamPerformance`.
`static String[]`	`DEFAULT_AUTHORITATIVE_PATH`
`static boolean`	`DEFAULT_AWS_S3_CLASSLOADER_ISOLATION` Default value for `AWS_S3_CLASSLOADER_ISOLATION`.
`static int`	`DEFAULT_AWS_S3_VECTOR_ACTIVE_RANGE_READS` Limit of queued range data download operations during vectored read.
`static int`	`DEFAULT_AWS_S3_VECTOR_READS_MAX_MERGED_READ_SIZE` Default maximum read size in bytes during vectored reads : 1253376.
`static int`	`DEFAULT_AWS_S3_VECTOR_READS_MIN_SEEK_SIZE` Default minimum seek in bytes during vectored reads : 4896.
`static String`	`DEFAULT_CANNED_ACL`
`static Duration`	`DEFAULT_CONNECTION_ACQUISITION_TIMEOUT_DURATION` Default acquisition timeout: 60 seconds.
`static Duration`	`DEFAULT_CONNECTION_IDLE_TIME_DURATION` Default idle time: 60 seconds.
`static boolean`	`DEFAULT_CONNECTION_KEEPALIVE` Default value of `CONNECTION_KEEPALIVE`: false.
`static long`	`DEFAULT_CONNECTION_TTL` Deprecated. use `DEFAULT_CONNECTION_TTL_DURATION`
`static Duration`	`DEFAULT_CONNECTION_TTL_DURATION` Default duration for `CONNECTION_TTL`: 5 minutes.
`static String`	`DEFAULT_DIRECTORY_MARKER_POLICY` Default retention policy: "keep".
`static String`	`DEFAULT_ENDPOINT` Default value of s3 endpoint: "".
`static int`	`DEFAULT_ESTABLISH_TIMEOUT` Deprecated. use `DEFAULT_ESTABLISH_TIMEOUT_DURATION`
`static Duration`	`DEFAULT_ESTABLISH_TIMEOUT_DURATION` Default TCP/(and TLS?) establish timeout: 30 seconds.
`static int`	`DEFAULT_EXECUTOR_CAPACITY` The capacity of executor queues for operations other than block upload, where `FAST_UPLOAD_ACTIVE_BLOCKS` is used instead.
`static int`	`DEFAULT_FAST_BUFFER_SIZE`
`static boolean`	`DEFAULT_FAST_UPLOAD` Deprecated.
`static int`	`DEFAULT_FAST_UPLOAD_ACTIVE_BLOCKS` Limit of queued block upload operations before writes block.
`static String`	`DEFAULT_FAST_UPLOAD_BUFFER` Default buffer option: "disk".
`static int`	`DEFAULT_KEEPALIVE_TIME` Deprecated. use `DEFAULT_KEEPALIVE_TIME_DURATION`
`static Duration`	`DEFAULT_KEEPALIVE_TIME_DURATION` Default value of `KEEPALIVE_TIME`: 60s.
`static int`	`DEFAULT_LIST_VERSION`
`static int`	`DEFAULT_MAX_ERROR_RETRIES` Default number of times the AWS client library should retry errors before escalating to the S3A code: 5.
`static int`	`DEFAULT_MAX_PAGING_KEYS`
`static int`	`DEFAULT_MAX_THREADS` Default value of `MAX_THREADS`: 96.
`static int`	`DEFAULT_MAX_TOTAL_TASKS` Default value for `MAX_TOTAL_TASKS`: 32.
`static int`	`DEFAULT_MAXIMUM_CONNECTIONS` Default value for `MAXIMUM_CONNECTIONS`: 500.
`static boolean`	`DEFAULT_METADATASTORE_AUTHORITATIVE` Deprecated.
`static long`	`DEFAULT_METADATASTORE_METADATA_TTL` Deprecated.
`static long`	`DEFAULT_MIN_MULTIPART_THRESHOLD`
`static long`	`DEFAULT_MULTIPART_SIZE`
`static boolean`	`DEFAULT_MULTIPART_UPLOAD_ENABLED` Default value for multipart uploads.
`static int`	`DEFAULT_PREFETCH_MAX_BLOCKS_COUNT` Default value for max blocks count config.
`static boolean`	`DEFAULT_PURGE_EXISTING_MULTIPART`
`static long`	`DEFAULT_PURGE_EXISTING_MULTIPART_AGE` Default Age.
`static long`	`DEFAULT_READAHEAD_RANGE`
`static int`	`DEFAULT_REQUEST_TIMEOUT` Deprecated. use `DEFAULT_REQUEST_TIMEOUT_DURATION`
`static Duration`	`DEFAULT_REQUEST_TIMEOUT_DURATION` Default duration of a request before it is timed out: 60s.
`static Class<? extends S3ClientFactory>`	`DEFAULT_S3_CLIENT_FACTORY_IMPL` Default factory: `org.apache.hadoop.fs.s3a.DefaultS3ClientFactory`.
`static String`	`DEFAULT_S3GUARD_DISABLED_WARN_LEVEL` Deprecated.
`static int`	`DEFAULT_S3GUARD_METASTORE_LOCAL_ENTRY_TTL` Deprecated.
`static int`	`DEFAULT_S3GUARD_METASTORE_LOCAL_MAX_RECORDS` Deprecated.
`static boolean`	`DEFAULT_SECURE_CONNECTIONS`
`static int`	`DEFAULT_SOCKET_RECV_BUFFER`
`static int`	`DEFAULT_SOCKET_SEND_BUFFER`
`static int`	`DEFAULT_SOCKET_TIMEOUT` Deprecated. use `DEFAULT_SOCKET_TIMEOUT_DURATION`
`static Duration`	`DEFAULT_SOCKET_TIMEOUT_DURATION` Default socket timeout: 200 seconds.
`static org.apache.hadoop.security.ssl.DelegatingSSLSocketFactory.SSLChannelMode`	`DEFAULT_SSL_CHANNEL_MODE`
`static String`	`DIRECTORY_MARKER_POLICY` Policy for directory markers.
`static String`	`DIRECTORY_MARKER_POLICY_AUTHORITATIVE` Retain directory markers in authoritative directory trees only.
`static String`	`DIRECTORY_MARKER_POLICY_DELETE` Delete directory markers.
`static String`	`DIRECTORY_MARKER_POLICY_KEEP` Retain directory markers.
`static String`	`DIRECTORY_OPERATIONS_PURGE_UPLOADS` Should directory operations purge uploads? This adds at least one parallelized list operation to the call, plus the overhead of deletions.
`static boolean`	`DIRECTORY_OPERATIONS_PURGE_UPLOADS_DEFAULT` Default value of `DIRECTORY_OPERATIONS_PURGE_UPLOADS`: false.
`static String`	`DOWNGRADE_SYNCABLE_EXCEPTIONS` Rather than raise an exception when an attempt is made to call the Syncable APIs, warn and downgrade.
`static boolean`	`DOWNGRADE_SYNCABLE_EXCEPTIONS_DEFAULT` Default value for syncable invocation.
`static String`	`ENABLE_MULTI_DELETE`
`static String`	`ENDPOINT` Endpoint.
`static boolean`	`ENDPOINT_FIPS_DEFAULT`
`static String`	`ESTABLISH_TIMEOUT` Milliseconds until a connection is established: "fs.s3a.connection.establish.timeout".
`static String`	`ETAG_CHECKSUM_ENABLED` Should etags be exposed as checksums?
`static boolean`	`ETAG_CHECKSUM_ENABLED_DEFAULT` Default value: false.
`static String`	`EXECUTOR_CAPACITY` The capacity of executor queues for operations other than block upload, where `FAST_UPLOAD_ACTIVE_BLOCKS` is used instead.
`static String`	`EXPERIMENTAL_AWS_INTERNAL_THROTTLING` Experimental/Unstable feature: should the AWS client library retry throttle responses before escalating to the S3A code: "fs.s3a.experimental.aws.s3.throttling".
`static boolean`	`EXPERIMENTAL_AWS_INTERNAL_THROTTLING_DEFAULT` Default value of `EXPERIMENTAL_AWS_INTERNAL_THROTTLING`, value: true.
`static String`	`FAIL_INJECT_CLIENT_FACTORY`
`static String`	`FAIL_INJECT_INCONSISTENCY_KEY` Deprecated.
`static String`	`FAIL_INJECT_INCONSISTENCY_MSEC` Deprecated.
`static String`	`FAIL_INJECT_INCONSISTENCY_PROBABILITY` Deprecated.
`static String`	`FAIL_INJECT_THROTTLE_PROBABILITY`
`static String`	`FAIL_ON_METADATA_WRITE_ERROR` Deprecated.
`static boolean`	`FAIL_ON_METADATA_WRITE_ERROR_DEFAULT` Deprecated.
`static String`	`FAST_BUFFER_SIZE` Deprecated.
`static String`	`FAST_UPLOAD` Deprecated.
`static String`	`FAST_UPLOAD_ACTIVE_BLOCKS` Maximum Number of blocks a single output stream can have active (uploading, or queued to the central FileSystem instance's pool of queued operations.
`static String`	`FAST_UPLOAD_BUFFER` What buffer to use.
`static String`	`FAST_UPLOAD_BUFFER_ARRAY` Use an in-memory array.
`static String`	`FAST_UPLOAD_BUFFER_DISK` Buffer blocks to disk: "disk".
`static String`	`FAST_UPLOAD_BYTEBUFFER` Use a byte buffer.
`static String`	`FIPS_ENDPOINT` Is the endpoint a FIPS endpoint? Can be queried as a path capability.
`static String`	`FS_S3A`
`static String`	`FS_S3A_BLOCK_SIZE`
`static String`	`FS_S3A_BUCKET_PREFIX` Prefix for S3A bucket-specific properties: "fs.s3a.bucket.".
`static String`	`FS_S3A_CREATE_HEADER` Prefix for adding a header to the object when created.
`static String`	`FS_S3A_CREATE_PERFORMANCE` Flag for create performance.
`static boolean`	`FS_S3A_CREATE_PERFORMANCE_DEFAULT` Default value for create performance in an S3A FS.
`static String`	`FS_S3A_CREATE_PERFORMANCE_ENABLED` Capability to indicate that the FS has been instantiated with `FS_S3A_CREATE_PERFORMANCE` set to true.
`static String`	`FS_S3A_PREFIX` Prefix for all S3A properties: "fs.s3a.".
`static String`	`HADOOP_TMP_DIR` default hadoop temp dir on local system: "hadoop.tmp.dir".
`static String`	`HTTP_SIGNER_CLASS_NAME` Classname of the http signer to use when `HTTP_SIGNER_ENABLED` is true: "fs.s3a.http.signer.class".
`static String`	`HTTP_SIGNER_ENABLED` Flag to switch to a v2 SDK HTTP signer.
`static boolean`	`HTTP_SIGNER_ENABLED_DEFAULT` Default value of `HTTP_SIGNER_ENABLED`: false.
`static String`	`INPUT_FADV_DEFAULT` Deprecated. use the `Options.OpenFileOptions` value in code which only needs to be compiled against newer hadoop releases.
`static String`	`INPUT_FADV_NORMAL` General input.
`static String`	`INPUT_FADV_RANDOM` Deprecated. use the `Options.OpenFileOptions` value in code which only needs to be compiled against newer hadoop releases.
`static String`	`INPUT_FADV_SEQUENTIAL` Deprecated. use the `Options.OpenFileOptions` value in code which only needs to be compiled against newer hadoop releases.
`static String`	`INPUT_FADVISE` Which input strategy to use for buffering, seeking and similar when reading data.
`static String`	`KEEPALIVE_TIME` The time an idle thread waits before terminating: "fs.s3a.threads.keepalivetime".
`static String`	`LIST_VERSION` S3 API level parameters.
`static String`	`MAX_ERROR_RETRIES` Number of times the AWS client library should retry errors before escalating to the S3A code: "fs.s3a.attempts.maximum".
`static int`	`MAX_MULTIPART_COUNT` Maximum number of partitions in a multipart upload: 10000.
`static String`	`MAX_PAGING_KEYS`
`static String`	`MAX_THREADS` The maximum number of threads to allow in the pool used by S3A.
`static String`	`MAX_TOTAL_TASKS` The maximum number of tasks queued (other than prefetcher tasks) if all threads are busy: "fs.s3a.max.total.tasks".
`static String`	`MAXIMUM_CONNECTIONS` Number of simultaneous connections to S3: "fs.s3a.connection.maximum".
`static String`	`METADATASTORE_AUTHORITATIVE` Deprecated. no longer supported
`static String`	`METADATASTORE_METADATA_TTL` Deprecated. no longer supported
`static String`	`MIN_MULTIPART_THRESHOLD`
`static Duration`	`MINIMUM_NETWORK_OPERATION_DURATION` This is the minimum operation duration unless programmatically set.
`static int`	`MULTIPART_MIN_SIZE` The minimum multipart size which S3 supports.
`static String`	`MULTIPART_SIZE`
`static String`	`MULTIPART_UPLOADS_ENABLED` Option to enable or disable the multipart uploads.
`static String`	`OPTIMIZED_COPY_FROM_LOCAL` Is the higher performance copy from local file to S3 enabled? This switch allows for it to be disabled if there are problems.
`static boolean`	`OPTIMIZED_COPY_FROM_LOCAL_DEFAULT` Default value for `OPTIMIZED_COPY_FROM_LOCAL`.
`static String`	`PATH_STYLE_ACCESS`
`static String`	`PREFETCH_BLOCK_COUNT_KEY` Maximum number of blocks prefetched at any given time.
`static int`	`PREFETCH_BLOCK_DEFAULT_COUNT`
`static int`	`PREFETCH_BLOCK_DEFAULT_SIZE`
`static String`	`PREFETCH_BLOCK_SIZE_KEY` The size of a single prefetched block in number of bytes.
`static boolean`	`PREFETCH_ENABLED_DEFAULT` Default option as to whether the prefetching input stream is enabled.
`static String`	`PREFETCH_ENABLED_KEY` Controls whether the prefetching input stream is enabled.
`static String`	`PREFETCH_MAX_BLOCKS_COUNT` Prefetch max blocks count config.
`static String`	`PROXY_DOMAIN`
`static String`	`PROXY_HOST`
`static String`	`PROXY_PASSWORD`
`static String`	`PROXY_PORT`
`static String`	`PROXY_SECURED` Is the proxy secured(proxyProtocol = HTTPS)?
`static String`	`PROXY_USERNAME`
`static String`	`PROXY_WORKSTATION`
`static String`	`PURGE_EXISTING_MULTIPART`
`static String`	`PURGE_EXISTING_MULTIPART_AGE` purge any multipart uploads older than this number of seconds.
`static String`	`READAHEAD_RANGE` read ahead buffer size to prevent connection re-establishments.
`static String`	`REQUEST_TIMEOUT` How long should the SDK retry/wait on a response from an S3 store: "fs.s3a.connection.request.timeout" including the time needed to sign the request.
`static String`	`RETRY_INTERVAL` Interval between retry attempts.: "fs.s3a.retry.interval".
`static String`	`RETRY_INTERVAL_DEFAULT` Default retry interval: "500ms".
`static String`	`RETRY_LIMIT` Number of times to retry any repeatable S3 client request on failure, excluding throttling requests: "fs.s3a.retry.limit".
`static int`	`RETRY_LIMIT_DEFAULT` Default retry limit: 7.
`static String`	`RETRY_THROTTLE_INTERVAL` Interval between retry attempts on throttled requests: "fs.s3a.retry.throttle.interval".
`static String`	`RETRY_THROTTLE_INTERVAL_DEFAULT` Default throttled retry interval: "500ms".
`static String`	`RETRY_THROTTLE_LIMIT` Number of times to retry any throttled request: "fs.s3a.retry.throttle.limit".
`static int`	`RETRY_THROTTLE_LIMIT_DEFAULT` Default throttled retry limit: 20.
`static String`	`S3_CLIENT_FACTORY_IMPL` S3 Client Factory implementation class: "fs.s3a.s3.client.factory.impl".
`static String`	`S3_ENCRYPTION_ALGORITHM` Set S3-server side encryption(SSE) or S3-Client side encryption(CSE) algorithm.
`static String`	`S3_ENCRYPTION_KEY` Set S3-SSE or S3-CSE encryption Key if required.
`static String`	`S3_METADATA_STORE_IMPL` Deprecated.
`static String`	`S3A_BUCKET_PROBE` Bucket validation parameter which can be set by client.
`static int`	`S3A_BUCKET_PROBE_DEFAULT` Default value of bucket validation parameter.
`static int`	`S3A_DEFAULT_PORT` Default port for this is 443: HTTPS.
`static String`	`S3A_SECURITY_CREDENTIAL_PROVIDER_PATH` Extra set of security credentials which will be prepended to that set in `"hadoop.security.credential.provider.path"`.
`static String`	`S3EXPRESS_CREATE_SESSION` Use the S3 Express createSession() operation to authenticate with S3Express storage?
`static boolean`	`S3EXPRESS_CREATE_SESSION_DEFAULT` Default value of `S3EXPRESS_CREATE_SESSION`.
`static String`	`S3GUARD_CLI_PRUNE_AGE` Deprecated.
`static String`	`S3GUARD_CONSISTENCY_RETRY_INTERVAL` Deprecated.
`static String`	`S3GUARD_CONSISTENCY_RETRY_INTERVAL_DEFAULT` Deprecated.
`static String`	`S3GUARD_CONSISTENCY_RETRY_LIMIT` Deprecated.
`static int`	`S3GUARD_CONSISTENCY_RETRY_LIMIT_DEFAULT` Deprecated.
`static int`	`S3GUARD_DDB_BACKGROUND_SLEEP_MSEC_DEFAULT` Deprecated.
`static String`	`S3GUARD_DDB_BACKGROUND_SLEEP_MSEC_KEY` Deprecated.
`static int`	`S3GUARD_DDB_BATCH_WRITE_REQUEST_LIMIT` Deprecated.
`static String`	`S3GUARD_DDB_MAX_RETRIES` Deprecated.
`static int`	`S3GUARD_DDB_MAX_RETRIES_DEFAULT` Deprecated.
`static String`	`S3GUARD_DDB_REGION_KEY` Deprecated.
`static long`	`S3GUARD_DDB_TABLE_CAPACITY_READ_DEFAULT` Deprecated.
`static String`	`S3GUARD_DDB_TABLE_CAPACITY_READ_KEY` Deprecated.
`static long`	`S3GUARD_DDB_TABLE_CAPACITY_WRITE_DEFAULT` Deprecated.
`static String`	`S3GUARD_DDB_TABLE_CAPACITY_WRITE_KEY` Deprecated.
`static String`	`S3GUARD_DDB_TABLE_CREATE_KEY` Deprecated.
`static String`	`S3GUARD_DDB_TABLE_NAME_KEY` Deprecated.
`static String`	`S3GUARD_DDB_TABLE_SSE_CMK` Deprecated.
`static String`	`S3GUARD_DDB_TABLE_SSE_ENABLED` Deprecated.
`static String`	`S3GUARD_DDB_TABLE_TAG` Deprecated.
`static String`	`S3GUARD_DDB_THROTTLE_RETRY_INTERVAL` Deprecated.
`static String`	`S3GUARD_DDB_THROTTLE_RETRY_INTERVAL_DEFAULT` Deprecated.
`static String`	`S3GUARD_DISABLED_WARN_LEVEL` Deprecated.
`static String`	`S3GUARD_METASTORE_DYNAMO` Deprecated.
`static String`	`S3GUARD_METASTORE_LOCAL` Deprecated.
`static String`	`S3GUARD_METASTORE_LOCAL_ENTRY_TTL` Deprecated.
`static String`	`S3GUARD_METASTORE_LOCAL_MAX_RECORDS` Deprecated.
`static String`	`S3GUARD_METASTORE_NULL` Deprecated.
`static String`	`S3N_FOLDER_SUFFIX`
`static String`	`SECRET_KEY`
`static String`	`SECURE_CONNECTIONS`
`static String`	`SERVER_SIDE_ENCRYPTION_AES256` Deprecated.
`static String`	`SERVER_SIDE_ENCRYPTION_ALGORITHM` Deprecated.
`static String`	`SERVER_SIDE_ENCRYPTION_KEY` Deprecated.
`static String`	`SESSION_TOKEN` session token for when using TemporaryAWSCredentialsProvider: : "fs.s3a.session.token".
`static String`	`SIGNING_ALGORITHM` Multiple parameters can be used to specify a non-default signing algorithm. fs.s3a.signing-algorithm - This property has existed for the longest time.
`static String`	`SIGNING_ALGORITHM_DDB` Deprecated.
`static String`	`SIGNING_ALGORITHM_S3`
`static String`	`SIGNING_ALGORITHM_STS`
`static String`	`SOCKET_RECV_BUFFER`
`static String`	`SOCKET_SEND_BUFFER`
`static String`	`SOCKET_TIMEOUT` Milliseconds until we give up on a connection to s3: "fs.s3a.connection.timeout".
`static String`	`SSL_CHANNEL_MODE`
`static String`	`STORAGE_CLASS` S3 storage class: standard, reduced_redundancy, intelligent_tiering etc.
`static String`	`STORAGE_CLASS_DEEP_ARCHIVE` S3 Storage option: "deep_archive".
`static String`	`STORAGE_CLASS_GLACIER` S3 Storage option: "glacier".
`static String`	`STORAGE_CLASS_GLACIER_INSTANT_RETRIEVAL` S3 Storage option: "glacier_ir".
`static String`	`STORAGE_CLASS_INTELLIGENT_TIERING` S3 Storage option: "intelligent_tiering".
`static String`	`STORAGE_CLASS_ONEZONE_INFREQUENT_ACCESS` S3 Storage option: "onezone_ia".
`static String`	`STORAGE_CLASS_OUTPOSTS` S3 Storage option: "outposts".
`static String`	`STORAGE_CLASS_REDUCED_REDUNDANCY` S3 Storage option: "reduced_redundancy".
`static String`	`STORAGE_CLASS_STANDARD` S3 Storage option: "standard".
`static String`	`STORAGE_CLASS_STANDARD_INFREQUENT_ACCESS` S3 Storage option: "standard_ia".
`static String`	`STORE_CAPABILITY_AWS_V2` Is this a v2 SDK build? value "fs.s3a.capability.aws.v2".
`static String`	`STORE_CAPABILITY_DIRECTORY_MARKER_ACTION_DELETE` `PathCapabilities` probe to indicate that a path deletes directory markers.
`static String`	`STORE_CAPABILITY_DIRECTORY_MARKER_ACTION_KEEP` `PathCapabilities` probe to indicate that a path keeps directory markers.
`static String`	`STORE_CAPABILITY_DIRECTORY_MARKER_AWARE` `PathCapabilities` probe to verify that an S3A Filesystem has the changes needed to safely work with buckets where directoy markers have not been deleted.
`static String`	`STORE_CAPABILITY_DIRECTORY_MARKER_MULTIPART_UPLOAD_ENABLED` Deprecated.
`static String`	`STORE_CAPABILITY_DIRECTORY_MARKER_POLICY_AUTHORITATIVE` `PathCapabilities` probe to indicate that the filesystem keeps directory markers in authoritative paths only.
`static String`	`STORE_CAPABILITY_DIRECTORY_MARKER_POLICY_DELETE` `PathCapabilities` probe to indicate that the filesystem deletes directory markers.
`static String`	`STORE_CAPABILITY_DIRECTORY_MARKER_POLICY_KEEP` `PathCapabilities` probe to indicate that the filesystem keeps directory markers.
`static String`	`STORE_CAPABILITY_MULTIPART_UPLOAD_ENABLED` Stream supports multipart uploads to the given path.
`static String`	`STREAM_READ_GAUGE_INPUT_POLICY` Gauge name for the input policy : "stream_read_gauge_input_policy".
`static int`	`THREAD_POOL_SHUTDOWN_DELAY_SECONDS` How long to wait for the thread pool to terminate when cleaning up.
`static String`	`USER_AGENT_PREFIX`
`static String`	`XA_HEADER_PREFIX` To comply with the XAttr rules, all headers of the object retrieved through the getXAttr APIs have the prefix: "header.".

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - HADOOP_TMP_DIR
```
public static final String HADOOP_TMP_DIR
```
    default hadoop temp dir on local system: "hadoop.tmp.dir".
    
    See Also:
    
    Constant Field Values
  - MULTIPART_MIN_SIZE
```
public static final int MULTIPART_MIN_SIZE
```
    The minimum multipart size which S3 supports.
    
    See Also:
    
    Constant Field Values
  - ACCESS_KEY
```
public static final String ACCESS_KEY
```
    See Also:
    
    Constant Field Values
  - SECRET_KEY
```
public static final String SECRET_KEY
```
    See Also:
    
    Constant Field Values
  - AWS_CREDENTIALS_PROVIDER
```
public static final String AWS_CREDENTIALS_PROVIDER
```
    See Also:
    
    Constant Field Values
  - AWS_CREDENTIALS_PROVIDER_MAPPING
```
public static final String AWS_CREDENTIALS_PROVIDER_MAPPING
```
    AWS credentials providers mapping with key/value pairs. Value = "fs.s3a.aws.credentials.provider.mapping"
    
    See Also:
    
    Constant Field Values
  - S3A_SECURITY_CREDENTIAL_PROVIDER_PATH
```
public static final String S3A_SECURITY_CREDENTIAL_PROVIDER_PATH
```
    Extra set of security credentials which will be prepended to that set in "hadoop.security.credential.provider.path". This extra option allows for per-bucket overrides.
    
    See Also:
    
    Constant Field Values
  - SESSION_TOKEN
```
public static final String SESSION_TOKEN
```
    session token for when using TemporaryAWSCredentialsProvider: : "fs.s3a.session.token".
    
    See Also:
    
    Constant Field Values
  - ASSUMED_ROLE_ARN
```
public static final String ASSUMED_ROLE_ARN
```
    ARN of AWS Role to request: "fs.s3a.assumed.role.arn".
    
    See Also:
    
    Constant Field Values
  - ASSUMED_ROLE_SESSION_NAME
```
public static final String ASSUMED_ROLE_SESSION_NAME
```
    Session name for the assumed role, must be valid characters according to the AWS APIs: "fs.s3a.assumed.role.session.name". If not set, one is generated from the current Hadoop/Kerberos username.
    
    See Also:
    
    Constant Field Values
  - ASSUMED_ROLE_SESSION_DURATION
```
public static final String ASSUMED_ROLE_SESSION_DURATION
```
    Duration of assumed roles before a refresh is attempted.
    
    See Also:
    
    Constant Field Values
  - ASSUMED_ROLE_STS_ENDPOINT
```
public static final String ASSUMED_ROLE_STS_ENDPOINT
```
    Security Token Service Endpoint: "fs.s3a.assumed.role.sts.endpoint". If unset, uses the default endpoint.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_ASSUMED_ROLE_STS_ENDPOINT
```
public static final String DEFAULT_ASSUMED_ROLE_STS_ENDPOINT
```
    Default endpoint for session tokens: "". This is the central STS endpoint which, for v3 signing, can issue STS tokens for any region.
    
    See Also:
    
    Constant Field Values
  - ASSUMED_ROLE_STS_ENDPOINT_REGION
```
public static final String ASSUMED_ROLE_STS_ENDPOINT_REGION
```
    Region for the STS endpoint; needed if the endpoint is set to anything other then the central one.: "fs.s3a.assumed.role.sts.endpoint.region".
    
    See Also:
    
    Constant Field Values
  - ASSUMED_ROLE_STS_ENDPOINT_REGION_DEFAULT
```
public static final String ASSUMED_ROLE_STS_ENDPOINT_REGION_DEFAULT
```
    Default value for the STS endpoint region; needed for v4 signing: "".
    
    See Also:
    
    Constant Field Values
  - ASSUMED_ROLE_SESSION_DURATION_DEFAULT
```
public static final String ASSUMED_ROLE_SESSION_DURATION_DEFAULT
```
    Default duration of an assumed role: "1h".
    
    See Also:
    
    Constant Field Values
  - ASSUMED_ROLE_CREDENTIALS_PROVIDER
```
public static final String ASSUMED_ROLE_CREDENTIALS_PROVIDER
```
    List of providers to authenticate for the assumed role: "fs.s3a.assumed.role.credentials.provider".
    
    See Also:
    
    Constant Field Values
  - ASSUMED_ROLE_POLICY
```
public static final String ASSUMED_ROLE_POLICY
```
    JSON policy containing the policy to apply to the role: "fs.s3a.assumed.role.policy". This is not used for delegation tokens, which generate the policy automatically, and restrict it to the S3 and KMS services needed.
    
    See Also:
    
    Constant Field Values
  - ASSUMED_ROLE_CREDENTIALS_DEFAULT
```
public static final String ASSUMED_ROLE_CREDENTIALS_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MAX_TOTAL_TASKS
```
public static final String MAX_TOTAL_TASKS
```
    The maximum number of tasks queued (other than prefetcher tasks) if all threads are busy: "fs.s3a.max.total.tasks".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_MAX_TOTAL_TASKS
```
public static final int DEFAULT_MAX_TOTAL_TASKS
```
    Default value for MAX_TOTAL_TASKS: 32.
    
    See Also:
    
    Constant Field Values
  - MAXIMUM_CONNECTIONS
```
public static final String MAXIMUM_CONNECTIONS
```
    Number of simultaneous connections to S3: "fs.s3a.connection.maximum".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_MAXIMUM_CONNECTIONS
```
public static final int DEFAULT_MAXIMUM_CONNECTIONS
```
    Default value for MAXIMUM_CONNECTIONS: 500. Future releases are likely to increase this value. Keep in sync with the value in core-default.xml
    
    See Also:
    
    Constant Field Values
  - CONNECTION_TTL
```
public static final String CONNECTION_TTL
```
    Configuration option to configure expiration time of S3 http connection from the connection pool: "fs.s3a.connection.ttl".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_CONNECTION_TTL_DURATION
```
public static final Duration DEFAULT_CONNECTION_TTL_DURATION
```
    Default duration for CONNECTION_TTL: 5 minutes.
  - DEFAULT_CONNECTION_TTL
```
public static final long DEFAULT_CONNECTION_TTL
```
    Deprecated. use DEFAULT_CONNECTION_TTL_DURATION
    
    Default value in millis for CONNECTION_TTL: 5 minutes.
  - SECURE_CONNECTIONS
```
public static final String SECURE_CONNECTIONS
```
    See Also:
    
    Constant Field Values
  - DEFAULT_SECURE_CONNECTIONS
```
public static final boolean DEFAULT_SECURE_CONNECTIONS
```
    See Also:
    
    Constant Field Values
  - ALLOW_REQUESTER_PAYS
```
public static final String ALLOW_REQUESTER_PAYS
```
    Configuration option for S3 Requester Pays feature: "fs.s3a.requester.pays.enabled".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_ALLOW_REQUESTER_PAYS
```
public static final boolean DEFAULT_ALLOW_REQUESTER_PAYS
```
    Default configuration for "fs.s3a.requester.pays.enabled": false.
    
    See Also:
    
    Constant Field Values
  - SSL_CHANNEL_MODE
```
public static final String SSL_CHANNEL_MODE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_SSL_CHANNEL_MODE
```
public static final org.apache.hadoop.security.ssl.DelegatingSSLSocketFactory.SSLChannelMode DEFAULT_SSL_CHANNEL_MODE
```
  - ENDPOINT
```
public static final String ENDPOINT
```
    Endpoint. For v4 signing and/or better performance, this should be the specific endpoint of the region in which the bucket is hosted.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_ENDPOINT
```
public static final String DEFAULT_ENDPOINT
```
    Default value of s3 endpoint: "". It tells the AWS client to work it out by asking the central endpoint where the bucket lives; caching that value in the client for the life of the process.
    Note: previously this constant was defined as CENTRAL_ENDPOINT, however the actual S3A client code used "" as the default when ENDPOINT was unset. As core-default.xml also set the endpoint to "", the empty string has long been the real default value.
    
    See Also:
    
    Constant Field Values
  - CENTRAL_ENDPOINT
```
public static final String CENTRAL_ENDPOINT
```
    The central endpoint :"s3.amazonaws.com".
    
    See Also:
    
    Constant Field Values
  - PATH_STYLE_ACCESS
```
public static final String PATH_STYLE_ACCESS
```
    See Also:
    
    Constant Field Values
  - PROXY_HOST
```
public static final String PROXY_HOST
```
    See Also:
    
    Constant Field Values
  - PROXY_PORT
```
public static final String PROXY_PORT
```
    See Also:
    
    Constant Field Values
  - PROXY_USERNAME
```
public static final String PROXY_USERNAME
```
    See Also:
    
    Constant Field Values
  - PROXY_PASSWORD
```
public static final String PROXY_PASSWORD
```
    See Also:
    
    Constant Field Values
  - PROXY_DOMAIN
```
public static final String PROXY_DOMAIN
```
    See Also:
    
    Constant Field Values
  - PROXY_WORKSTATION
```
public static final String PROXY_WORKSTATION
```
    See Also:
    
    Constant Field Values
  - PROXY_SECURED
```
public static final String PROXY_SECURED
```
    Is the proxy secured(proxyProtocol = HTTPS)?
    
    See Also:
    
    Constant Field Values
  - MAX_ERROR_RETRIES
```
public static final String MAX_ERROR_RETRIES
```
    Number of times the AWS client library should retry errors before escalating to the S3A code: "fs.s3a.attempts.maximum". The S3A connector does its own selective retries; the only time the AWS SDK operations are not wrapped is during multipart copy via the AWS SDK transfer manager.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_MAX_ERROR_RETRIES
```
public static final int DEFAULT_MAX_ERROR_RETRIES
```
    Default number of times the AWS client library should retry errors before escalating to the S3A code: 5.
    
    See Also:
    
    Constant Field Values
  - EXPERIMENTAL_AWS_INTERNAL_THROTTLING
```
@InterfaceStability.Unstable
public static final String EXPERIMENTAL_AWS_INTERNAL_THROTTLING
```
    Experimental/Unstable feature: should the AWS client library retry throttle responses before escalating to the S3A code: "fs.s3a.experimental.aws.s3.throttling". When set to false, the S3A connector sees all S3 throttle events, And so can update it counters and the metrics, and use its own retry policy. However, this may have adverse effects on some operations where the S3A code cannot retry as efficiently as the AWS client library. This only applies to S3 operations, not to DynamoDB or other services.
    
    See Also:
    
    Constant Field Values
  - EXPERIMENTAL_AWS_INTERNAL_THROTTLING_DEFAULT
```
@InterfaceStability.Unstable
public static final boolean EXPERIMENTAL_AWS_INTERNAL_THROTTLING_DEFAULT
```
    Default value of EXPERIMENTAL_AWS_INTERNAL_THROTTLING, value: true.
    
    See Also:
    
    Constant Field Values
  - MINIMUM_NETWORK_OPERATION_DURATION
```
public static final Duration MINIMUM_NETWORK_OPERATION_DURATION
```
    This is the minimum operation duration unless programmatically set. It ensures that even if a configuration has mistaken a millisecond option for seconds, a viable duration will actually be used. Value: 15s.
  - ESTABLISH_TIMEOUT
```
public static final String ESTABLISH_TIMEOUT
```
    Milliseconds until a connection is established: "fs.s3a.connection.establish.timeout".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_ESTABLISH_TIMEOUT_DURATION
```
public static final Duration DEFAULT_ESTABLISH_TIMEOUT_DURATION
```
    Default TCP/(and TLS?) establish timeout: 30 seconds.
  - DEFAULT_ESTABLISH_TIMEOUT
```
public static final int DEFAULT_ESTABLISH_TIMEOUT
```
    Deprecated. use DEFAULT_ESTABLISH_TIMEOUT_DURATION
    
    Default establish timeout in millis: 30 seconds.
  - SOCKET_TIMEOUT
```
public static final String SOCKET_TIMEOUT
```
    Milliseconds until we give up on a connection to s3: "fs.s3a.connection.timeout".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_SOCKET_TIMEOUT_DURATION
```
public static final Duration DEFAULT_SOCKET_TIMEOUT_DURATION
```
    Default socket timeout: 200 seconds.
  - DEFAULT_SOCKET_TIMEOUT
```
public static final int DEFAULT_SOCKET_TIMEOUT
```
    Deprecated. use DEFAULT_SOCKET_TIMEOUT_DURATION
    
    Default socket timeout: DEFAULT_SOCKET_TIMEOUT_DURATION.
  - REQUEST_TIMEOUT
```
public static final String REQUEST_TIMEOUT
```
    How long should the SDK retry/wait on a response from an S3 store: "fs.s3a.connection.request.timeout" including the time needed to sign the request.
    This is time to response, so for a GET request it is "time to 200 response" not the time limit to download the requested data. This makes it different from REQUEST_TIMEOUT, which is for total HTTP request.
    Default unit is milliseconds.
    There is a minimum duration set in MINIMUM_NETWORK_OPERATION_DURATION; it is impossible to set a delay less than this, even for testing. Why so? Too many deployments where the configuration assumed the timeout was in seconds and that "120" was a reasonable value rather than "too short to work reliably"
    Note for anyone writing tests which need to set a low value for this: to avoid the minimum duration overrides, call AWSClientConfig.setMinimumOperationDuration() and set a low value before creating the filesystem.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_REQUEST_TIMEOUT_DURATION
```
public static final Duration DEFAULT_REQUEST_TIMEOUT_DURATION
```
    Default duration of a request before it is timed out: 60s.
  - DEFAULT_REQUEST_TIMEOUT
```
public static final int DEFAULT_REQUEST_TIMEOUT
```
    Deprecated. use DEFAULT_REQUEST_TIMEOUT_DURATION
    
    Default duration of a request before it is timed out: Zero.
  - CONNECTION_ACQUISITION_TIMEOUT
```
public static final String CONNECTION_ACQUISITION_TIMEOUT
```
    Acquisition timeout for connections from the pool: "fs.s3a.connection.acquisition.timeout". Default unit is milliseconds for consistency with other options.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_CONNECTION_ACQUISITION_TIMEOUT_DURATION
```
public static final Duration DEFAULT_CONNECTION_ACQUISITION_TIMEOUT_DURATION
```
    Default acquisition timeout: 60 seconds.
  - CONNECTION_KEEPALIVE
```
public static final String CONNECTION_KEEPALIVE
```
    Should TCP Keepalive be enabled on the socket? This adds some network IO, but finds failures faster. "fs.s3a.connection.keepalive".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_CONNECTION_KEEPALIVE
```
public static final boolean DEFAULT_CONNECTION_KEEPALIVE
```
    Default value of CONNECTION_KEEPALIVE: false.
    
    See Also:
    
    Constant Field Values
  - CONNECTION_IDLE_TIME
```
public static final String CONNECTION_IDLE_TIME
```
    Maximum idle time for connections in the pool: "fs.s3a.connection.idle.time".
    Too low: overhead of creating connections. Too high, risk of stale connections and inability to use the adaptive load balancing of the S3 front end.
    Default unit is milliseconds for consistency with other options.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_CONNECTION_IDLE_TIME_DURATION
```
public static final Duration DEFAULT_CONNECTION_IDLE_TIME_DURATION
```
    Default idle time: 60 seconds.
  - SOCKET_SEND_BUFFER
```
public static final String SOCKET_SEND_BUFFER
```
    See Also:
    
    Constant Field Values
  - DEFAULT_SOCKET_SEND_BUFFER
```
public static final int DEFAULT_SOCKET_SEND_BUFFER
```
    See Also:
    
    Constant Field Values
  - SOCKET_RECV_BUFFER
```
public static final String SOCKET_RECV_BUFFER
```
    See Also:
    
    Constant Field Values
  - DEFAULT_SOCKET_RECV_BUFFER
```
public static final int DEFAULT_SOCKET_RECV_BUFFER
```
    See Also:
    
    Constant Field Values
  - MAX_PAGING_KEYS
```
public static final String MAX_PAGING_KEYS
```
    See Also:
    
    Constant Field Values
  - DEFAULT_MAX_PAGING_KEYS
```
public static final int DEFAULT_MAX_PAGING_KEYS
```
    See Also:
    
    Constant Field Values
  - MAX_THREADS
```
public static final String MAX_THREADS
```
    The maximum number of threads to allow in the pool used by S3A. Value: "fs.s3a.threads.max".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_MAX_THREADS
```
public static final int DEFAULT_MAX_THREADS
```
    Default value of MAX_THREADS: 96.
    
    See Also:
    
    Constant Field Values
  - KEEPALIVE_TIME
```
public static final String KEEPALIVE_TIME
```
    The time an idle thread waits before terminating: "fs.s3a.threads.keepalivetime". This is in SECONDS unless the optional unit is given.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_KEEPALIVE_TIME_DURATION
```
public static final Duration DEFAULT_KEEPALIVE_TIME_DURATION
```
    Default value of KEEPALIVE_TIME: 60s.
  - DEFAULT_KEEPALIVE_TIME
```
public static final int DEFAULT_KEEPALIVE_TIME
```
    Deprecated. use DEFAULT_KEEPALIVE_TIME_DURATION
    
    Default value of KEEPALIVE_TIME: 60s.
  - MULTIPART_SIZE
```
public static final String MULTIPART_SIZE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_MULTIPART_SIZE
```
public static final long DEFAULT_MULTIPART_SIZE
```
    See Also:
    
    Constant Field Values
  - MIN_MULTIPART_THRESHOLD
```
public static final String MIN_MULTIPART_THRESHOLD
```
    See Also:
    
    Constant Field Values
  - DEFAULT_MIN_MULTIPART_THRESHOLD
```
public static final long DEFAULT_MIN_MULTIPART_THRESHOLD
```
    See Also:
    
    Constant Field Values
  - ENABLE_MULTI_DELETE
```
public static final String ENABLE_MULTI_DELETE
```
    See Also:
    
    Constant Field Values
  - BULK_DELETE_PAGE_SIZE
```
public static final String BULK_DELETE_PAGE_SIZE
```
    Number of objects to delete in a single multi-object delete "fs.s3a.bulk.delete.page.size". Max: 1000. A bigger value it means fewer POST requests when deleting a directory tree with many objects. However, as you are limited to only a a few thousand requests per second against a single partition of an S3 bucket, a large page size can easily overload the bucket and so trigger throttling. Furthermore, as the reaction to this request is being throttled is simply to retry it -it can take a while for the situation to go away. While a large value may give better numbers on tests and benchmarks where only a single operations being executed, once multiple applications start working with the same bucket these large deletes can be highly disruptive.
    
    See Also:
    
    Constant Field Values
  - BULK_DELETE_PAGE_SIZE_DEFAULT
```
public static final int BULK_DELETE_PAGE_SIZE_DEFAULT
```
    Default Number of objects to delete in a single multi-object delete: 250.
    
    See Also:
    
    Constant Field Values
  - BUFFER_DIR
```
public static final String BUFFER_DIR
```
    See Also:
    
    Constant Field Values
  - FAST_UPLOAD
```
@Deprecated
public static final String FAST_UPLOAD
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_FAST_UPLOAD
```
@Deprecated
public static final boolean DEFAULT_FAST_UPLOAD
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - FAST_BUFFER_SIZE
```
@Deprecated
public static final String FAST_BUFFER_SIZE
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_FAST_BUFFER_SIZE
```
public static final int DEFAULT_FAST_BUFFER_SIZE
```
    See Also:
    
    Constant Field Values
  - FAST_UPLOAD_BUFFER
```
public static final String FAST_UPLOAD_BUFFER
```
    What buffer to use. Default is FAST_UPLOAD_BUFFER_DISK Value: "fs.s3a.fast.upload.buffer"
    
    See Also:
    
    Constant Field Values
  - FAST_UPLOAD_BUFFER_DISK
```
public static final String FAST_UPLOAD_BUFFER_DISK
```
    Buffer blocks to disk: "disk". Capacity is limited to available disk space.
    
    See Also:
    
    Constant Field Values
  - FAST_UPLOAD_BUFFER_ARRAY
```
public static final String FAST_UPLOAD_BUFFER_ARRAY
```
    Use an in-memory array. Fast but will run of heap rapidly: "array".
    
    See Also:
    
    Constant Field Values
  - FAST_UPLOAD_BYTEBUFFER
```
public static final String FAST_UPLOAD_BYTEBUFFER
```
    Use a byte buffer. May be more memory efficient than the FAST_UPLOAD_BUFFER_ARRAY: "bytebuffer".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_FAST_UPLOAD_BUFFER
```
public static final String DEFAULT_FAST_UPLOAD_BUFFER
```
    Default buffer option: "disk".
    
    See Also:
    
    Constant Field Values
  - FAST_UPLOAD_ACTIVE_BLOCKS
```
public static final String FAST_UPLOAD_ACTIVE_BLOCKS
```
    Maximum Number of blocks a single output stream can have active (uploading, or queued to the central FileSystem instance's pool of queued operations. This stops a single stream overloading the shared thread pool. "fs.s3a.fast.upload.active.blocks"
    Default is DEFAULT_FAST_UPLOAD_ACTIVE_BLOCKS
    
    See Also:
    
    Constant Field Values
  - DEFAULT_FAST_UPLOAD_ACTIVE_BLOCKS
```
public static final int DEFAULT_FAST_UPLOAD_ACTIVE_BLOCKS
```
    Limit of queued block upload operations before writes block. Value: 4
    
    See Also:
    
    Constant Field Values
  - DOWNGRADE_SYNCABLE_EXCEPTIONS
```
public static final String DOWNGRADE_SYNCABLE_EXCEPTIONS
```
    Rather than raise an exception when an attempt is made to call the Syncable APIs, warn and downgrade. Value: "fs.s3a.downgrade.syncable.exceptions".
    
    See Also:
    
    Constant Field Values
  - DOWNGRADE_SYNCABLE_EXCEPTIONS_DEFAULT
```
public static final boolean DOWNGRADE_SYNCABLE_EXCEPTIONS_DEFAULT
```
    Default value for syncable invocation. Value: true.
    
    See Also:
    
    Constant Field Values
  - EXECUTOR_CAPACITY
```
public static final String EXECUTOR_CAPACITY
```
    The capacity of executor queues for operations other than block upload, where FAST_UPLOAD_ACTIVE_BLOCKS is used instead. This should be less than MAX_THREADS for fair submission. Value: "fs.s3a.executor.capacity".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_EXECUTOR_CAPACITY
```
public static final int DEFAULT_EXECUTOR_CAPACITY
```
    The capacity of executor queues for operations other than block upload, where FAST_UPLOAD_ACTIVE_BLOCKS is used instead. Value: 16
    
    See Also:
    
    Constant Field Values
  - CANNED_ACL
```
public static final String CANNED_ACL
```
    See Also:
    
    Constant Field Values
  - DEFAULT_CANNED_ACL
```
public static final String DEFAULT_CANNED_ACL
```
    See Also:
    
    Constant Field Values
  - CONTENT_ENCODING
```
public static final String CONTENT_ENCODING
```
    Content encoding: gzip, deflate, compress, br, etc. Value "fs.s3a.object.content.encoding".
    
    See Also:
    
    Constant Field Values
  - STORAGE_CLASS
```
public static final String STORAGE_CLASS
```
    S3 storage class: standard, reduced_redundancy, intelligent_tiering etc. Value "fs.s3a.create.storage.class".
    
    See Also:
    
    Constant Field Values
  - STORAGE_CLASS_STANDARD
```
public static final String STORAGE_CLASS_STANDARD
```
    S3 Storage option: "standard".
    
    See Also:
    
    Constant Field Values
  - STORAGE_CLASS_REDUCED_REDUNDANCY
```
public static final String STORAGE_CLASS_REDUCED_REDUNDANCY
```
    S3 Storage option: "reduced_redundancy".
    
    See Also:
    
    Constant Field Values
  - STORAGE_CLASS_GLACIER
```
public static final String STORAGE_CLASS_GLACIER
```
    S3 Storage option: "glacier".
    
    See Also:
    
    Constant Field Values
  - STORAGE_CLASS_STANDARD_INFREQUENT_ACCESS
```
public static final String STORAGE_CLASS_STANDARD_INFREQUENT_ACCESS
```
    S3 Storage option: "standard_ia".
    
    See Also:
    
    Constant Field Values
  - STORAGE_CLASS_ONEZONE_INFREQUENT_ACCESS
```
public static final String STORAGE_CLASS_ONEZONE_INFREQUENT_ACCESS
```
    S3 Storage option: "onezone_ia".
    
    See Also:
    
    Constant Field Values
  - STORAGE_CLASS_INTELLIGENT_TIERING
```
public static final String STORAGE_CLASS_INTELLIGENT_TIERING
```
    S3 Storage option: "intelligent_tiering".
    
    See Also:
    
    Constant Field Values
  - STORAGE_CLASS_DEEP_ARCHIVE
```
public static final String STORAGE_CLASS_DEEP_ARCHIVE
```
    S3 Storage option: "deep_archive".
    
    See Also:
    
    Constant Field Values
  - STORAGE_CLASS_OUTPOSTS
```
public static final String STORAGE_CLASS_OUTPOSTS
```
    S3 Storage option: "outposts".
    
    See Also:
    
    Constant Field Values
  - STORAGE_CLASS_GLACIER_INSTANT_RETRIEVAL
```
public static final String STORAGE_CLASS_GLACIER_INSTANT_RETRIEVAL
```
    S3 Storage option: "glacier_ir".
    
    See Also:
    
    Constant Field Values
  - PURGE_EXISTING_MULTIPART
```
public static final String PURGE_EXISTING_MULTIPART
```
    See Also:
    
    Constant Field Values
  - DEFAULT_PURGE_EXISTING_MULTIPART
```
public static final boolean DEFAULT_PURGE_EXISTING_MULTIPART
```
    See Also:
    
    Constant Field Values
  - PURGE_EXISTING_MULTIPART_AGE
```
public static final String PURGE_EXISTING_MULTIPART_AGE
```
    purge any multipart uploads older than this number of seconds.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_PURGE_EXISTING_MULTIPART_AGE
```
public static final long DEFAULT_PURGE_EXISTING_MULTIPART_AGE
```
    Default Age.
  - SERVER_SIDE_ENCRYPTION_ALGORITHM
```
@Deprecated
public static final String SERVER_SIDE_ENCRYPTION_ALGORITHM
```
    Deprecated.
    
    s3 server-side encryption, see S3AEncryptionMethods for valid options. "fs.s3a.server-side-encryption-algorithm"
    
    See Also:
    
    Constant Field Values
  - SERVER_SIDE_ENCRYPTION_AES256
```
@Deprecated
public static final String SERVER_SIDE_ENCRYPTION_AES256
```
    Deprecated.
    
    The standard encryption algorithm AWS supports. Different implementations may support others (or none). Use the S3AEncryptionMethods instead when configuring which Server Side Encryption to use. Value: ""AES256"".
    
    See Also:
    
    Constant Field Values
  - SERVER_SIDE_ENCRYPTION_KEY
```
@Deprecated
public static final String SERVER_SIDE_ENCRYPTION_KEY
```
    Deprecated.
    
    Used to specify which AWS KMS key to use if SERVER_SIDE_ENCRYPTION_ALGORITHM is SSE-KMS (will default to aws/s3 master key if left blank). With with SSE_C, the base-64 encoded AES 256 key. May be set within a JCEKS file. Value: ""fs.s3a.server-side-encryption.key"".
    
    See Also:
    
    Constant Field Values
  - S3_ENCRYPTION_ALGORITHM
```
public static final String S3_ENCRYPTION_ALGORITHM
```
    Set S3-server side encryption(SSE) or S3-Client side encryption(CSE) algorithm. Check S3AEncryptionMethods for valid options.
    value: "fs.s3a.encryption.algorithm"
    
    See Also:
    
    Constant Field Values
  - S3_ENCRYPTION_KEY
```
public static final String S3_ENCRYPTION_KEY
```
    Set S3-SSE or S3-CSE encryption Key if required.
    Note:
    - In case of S3-CSE this value needs to be set for CSE to work.
    - In case of S3-SSE follow SERVER_SIDE_ENCRYPTION_KEY
    value:"fs.s3a.encryption.key"
    See Also:
    
    Constant Field Values
  - CUSTOM_SIGNERS
```
public static final String CUSTOM_SIGNERS
```
    List of custom Signers. The signer class will be loaded, and the signer name will be associated with this signer class in the S3 SDK. Examples CustomSigner -> 'CustomSigner:org.apache...CustomSignerClass' CustomSigners -> 'CSigner1:CSigner1Class,CSigner2:CSigner2Class' Initializer -> 'CSigner1:CSigner1Class:CSigner1InitializerClass' With Existing -> 'AWS4Signer,CSigner1,CSigner2:CSigner2Class'
    
    See Also:
    
    Constant Field Values
  - SIGNING_ALGORITHM
```
public static final String SIGNING_ALGORITHM
```
    Multiple parameters can be used to specify a non-default signing algorithm.
    fs.s3a.signing-algorithm - This property has existed for the longest time. If specified, without other properties being specified, this signing algorithm will be used for all services.
    Another property overrides this value for S3.
    fs.s3a.s3.signing-algorithm - Allows overriding the S3 Signing algorithm. Specifying this property without specifying fs.s3a.signing-algorithm will only update the signing algorithm for S3 requests. fs.s3a.sts.signing-algorithm: algorithm to use for STS interaction.
    
    See Also:
    
    Constant Field Values
  - SIGNING_ALGORITHM_S3
```
public static final String SIGNING_ALGORITHM_S3
```
  - SIGNING_ALGORITHM_DDB
```
@Deprecated
public static final String SIGNING_ALGORITHM_DDB
```
    Deprecated.
  - SIGNING_ALGORITHM_STS
```
public static final String SIGNING_ALGORITHM_STS
```
  - S3N_FOLDER_SUFFIX
```
public static final String S3N_FOLDER_SUFFIX
```
    See Also:
    
    Constant Field Values
  - FS_S3A_BLOCK_SIZE
```
public static final String FS_S3A_BLOCK_SIZE
```
    See Also:
    
    Constant Field Values
  - FS_S3A
```
public static final String FS_S3A
```
    See Also:
    
    Constant Field Values
  - FS_S3A_PREFIX
```
public static final String FS_S3A_PREFIX
```
    Prefix for all S3A properties: "fs.s3a.".
    
    See Also:
    
    Constant Field Values
  - FS_S3A_BUCKET_PREFIX
```
public static final String FS_S3A_BUCKET_PREFIX
```
    Prefix for S3A bucket-specific properties: "fs.s3a.bucket.".
    
    See Also:
    
    Constant Field Values
  - S3A_DEFAULT_PORT
```
public static final int S3A_DEFAULT_PORT
```
    Default port for this is 443: HTTPS.
    
    See Also:
    
    Constant Field Values
  - USER_AGENT_PREFIX
```
public static final String USER_AGENT_PREFIX
```
    See Also:
    
    Constant Field Values
  - AUTHORITATIVE_PATH
```
public static final String AUTHORITATIVE_PATH
```
    Paths considered "authoritative". When S3guard was supported, this skipped checks to s3 on directory listings. It is also use to optionally disable marker retentation purely on these paths -a feature which is still retained/available.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_AUTHORITATIVE_PATH
```
public static final String[] DEFAULT_AUTHORITATIVE_PATH
```
  - METADATASTORE_AUTHORITATIVE
```
@Deprecated
public static final String METADATASTORE_AUTHORITATIVE
```
    Deprecated. no longer supported
    
    Whether or not to allow MetadataStore to be source of truth.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_METADATASTORE_AUTHORITATIVE
```
@Deprecated
public static final boolean DEFAULT_METADATASTORE_AUTHORITATIVE
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3A_BUCKET_PROBE
```
public static final String S3A_BUCKET_PROBE
```
    Bucket validation parameter which can be set by client. This will be used in S3AFileSystem.initialize(URI, Configuration). Value: "fs.s3a.bucket.probe"
    
    See Also:
    
    Constant Field Values
  - S3A_BUCKET_PROBE_DEFAULT
```
public static final int S3A_BUCKET_PROBE_DEFAULT
```
    Default value of bucket validation parameter. An existence of bucket will be validated using S3AFileSystem.verifyBucketExistsV2(). Value: 0
    
    See Also:
    
    Constant Field Values
  - METADATASTORE_METADATA_TTL
```
@Deprecated
public static final String METADATASTORE_METADATA_TTL
```
    Deprecated. no longer supported
    
    How long a directory listing in the MS is considered as authoritative.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_METADATASTORE_METADATA_TTL
```
@Deprecated
public static final long DEFAULT_METADATASTORE_METADATA_TTL
```
    Deprecated.
    
    Default TTL in milliseconds: 15 minutes.
  - READAHEAD_RANGE
```
public static final String READAHEAD_RANGE
```
    read ahead buffer size to prevent connection re-establishments.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_READAHEAD_RANGE
```
public static final long DEFAULT_READAHEAD_RANGE
```
    See Also:
    
    Constant Field Values
  - ASYNC_DRAIN_THRESHOLD
```
public static final String ASYNC_DRAIN_THRESHOLD
```
    The threshold at which drain operations switch to being asynchronous with the schedule/wait overhead compared to synchronous. Value: "fs.s3a.input.async.drain.threshold"
    
    See Also:
    
    Constant Field Values
  - DEFAULT_ASYNC_DRAIN_THRESHOLD
```
public static final int DEFAULT_ASYNC_DRAIN_THRESHOLD
```
    This is a number based purely on experimentation in ITestS3AInputStreamPerformance. Value: 16000
    
    See Also:
    
    Constant Field Values
  - INPUT_FADVISE
```
public static final String INPUT_FADVISE
```
    Which input strategy to use for buffering, seeking and similar when reading data. Value: "fs.s3a.experimental.input.fadvise"
    
    See Also:
    
    Constant Field Values
  - INPUT_FADV_DEFAULT
```
public static final String INPUT_FADV_DEFAULT
```
    Deprecated. use the Options.OpenFileOptions value in code which only needs to be compiled against newer hadoop releases.
    
    The default value for this FS. Which for S3A, is adaptive. Value: "default"
    
    See Also:
    
    Constant Field Values
  - INPUT_FADV_NORMAL
```
public static final String INPUT_FADV_NORMAL
```
    General input. Some seeks, some reads. The policy name "default" is standard across different stores, and should be preferred. Value: "normal"
    
    See Also:
    
    Constant Field Values
  - INPUT_FADV_SEQUENTIAL
```
public static final String INPUT_FADV_SEQUENTIAL
```
    Deprecated. use the Options.OpenFileOptions value in code which only needs to be compiled against newer hadoop releases.
    
    Optimized for sequential access. Value: "sequential"
    
    See Also:
    
    Constant Field Values
  - INPUT_FADV_RANDOM
```
public static final String INPUT_FADV_RANDOM
```
    Deprecated. use the Options.OpenFileOptions value in code which only needs to be compiled against newer hadoop releases.
    
    Optimized purely for random seek+read/positionedRead operations; The performance of sequential IO may be reduced in exchange for more efficient seek() operations. Value: "random"
    
    See Also:
    
    Constant Field Values
  - STREAM_READ_GAUGE_INPUT_POLICY
```
public static final String STREAM_READ_GAUGE_INPUT_POLICY
```
    Gauge name for the input policy : "stream_read_gauge_input_policy". This references an enum currently exclusive to the S3A stream.
    
    See Also:
    
    Constant Field Values
  - S3_CLIENT_FACTORY_IMPL
```
@InterfaceAudience.Private
 @InterfaceStability.Unstable
public static final String S3_CLIENT_FACTORY_IMPL
```
    S3 Client Factory implementation class: "fs.s3a.s3.client.factory.impl". Unstable and incompatible between v1 and v2 SDK versions.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_S3_CLIENT_FACTORY_IMPL
```
@InterfaceAudience.Private
 @InterfaceStability.Unstable
public static final Class<? extends S3ClientFactory> DEFAULT_S3_CLIENT_FACTORY_IMPL
```
    Default factory: org.apache.hadoop.fs.s3a.DefaultS3ClientFactory.
  - MAX_MULTIPART_COUNT
```
@InterfaceAudience.Private
public static final int MAX_MULTIPART_COUNT
```
    Maximum number of partitions in a multipart upload: 10000.
    
    See Also:
    
    Constant Field Values
  - S3_METADATA_STORE_IMPL
```
@Deprecated
public static final String S3_METADATA_STORE_IMPL
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - FAIL_ON_METADATA_WRITE_ERROR
```
@Deprecated
public static final String FAIL_ON_METADATA_WRITE_ERROR
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - FAIL_ON_METADATA_WRITE_ERROR_DEFAULT
```
@Deprecated
public static final boolean FAIL_ON_METADATA_WRITE_ERROR_DEFAULT
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_CLI_PRUNE_AGE
```
@InterfaceStability.Unstable
 @Deprecated
public static final String S3GUARD_CLI_PRUNE_AGE
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_REGION_KEY
```
@Deprecated
public static final String S3GUARD_DDB_REGION_KEY
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_TABLE_NAME_KEY
```
@Deprecated
public static final String S3GUARD_DDB_TABLE_NAME_KEY
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_TABLE_TAG
```
@Deprecated
public static final String S3GUARD_DDB_TABLE_TAG
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_TABLE_CREATE_KEY
```
@Deprecated
public static final String S3GUARD_DDB_TABLE_CREATE_KEY
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_TABLE_CAPACITY_READ_KEY
```
@Deprecated
public static final String S3GUARD_DDB_TABLE_CAPACITY_READ_KEY
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_TABLE_CAPACITY_READ_DEFAULT
```
@Deprecated
public static final long S3GUARD_DDB_TABLE_CAPACITY_READ_DEFAULT
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_TABLE_CAPACITY_WRITE_KEY
```
@Deprecated
public static final String S3GUARD_DDB_TABLE_CAPACITY_WRITE_KEY
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_TABLE_CAPACITY_WRITE_DEFAULT
```
@Deprecated
public static final long S3GUARD_DDB_TABLE_CAPACITY_WRITE_DEFAULT
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_TABLE_SSE_ENABLED
```
@Deprecated
public static final String S3GUARD_DDB_TABLE_SSE_ENABLED
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_TABLE_SSE_CMK
```
@Deprecated
public static final String S3GUARD_DDB_TABLE_SSE_CMK
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_BATCH_WRITE_REQUEST_LIMIT
```
@Deprecated
public static final int S3GUARD_DDB_BATCH_WRITE_REQUEST_LIMIT
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_MAX_RETRIES
```
@Deprecated
public static final String S3GUARD_DDB_MAX_RETRIES
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_MAX_RETRIES_DEFAULT
```
@Deprecated
public static final int S3GUARD_DDB_MAX_RETRIES_DEFAULT
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_THROTTLE_RETRY_INTERVAL
```
@Deprecated
public static final String S3GUARD_DDB_THROTTLE_RETRY_INTERVAL
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_THROTTLE_RETRY_INTERVAL_DEFAULT
```
@Deprecated
public static final String S3GUARD_DDB_THROTTLE_RETRY_INTERVAL_DEFAULT
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_BACKGROUND_SLEEP_MSEC_KEY
```
@Deprecated
 @InterfaceStability.Unstable
public static final String S3GUARD_DDB_BACKGROUND_SLEEP_MSEC_KEY
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DDB_BACKGROUND_SLEEP_MSEC_DEFAULT
```
@Deprecated
public static final int S3GUARD_DDB_BACKGROUND_SLEEP_MSEC_DEFAULT
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_METASTORE_NULL
```
@Deprecated
public static final String S3GUARD_METASTORE_NULL
```
    Deprecated.
    
    The default "Null" metadata store: "org.apache.hadoop.fs.s3a.s3guard.NullMetadataStore".
    
    See Also:
    
    Constant Field Values
  - S3GUARD_METASTORE_LOCAL
```
@Deprecated
 @InterfaceStability.Unstable
public static final String S3GUARD_METASTORE_LOCAL
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_METASTORE_LOCAL_MAX_RECORDS
```
@InterfaceStability.Unstable
 @Deprecated
public static final String S3GUARD_METASTORE_LOCAL_MAX_RECORDS
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_S3GUARD_METASTORE_LOCAL_MAX_RECORDS
```
@Deprecated
public static final int DEFAULT_S3GUARD_METASTORE_LOCAL_MAX_RECORDS
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_METASTORE_LOCAL_ENTRY_TTL
```
@InterfaceStability.Unstable
 @Deprecated
public static final String S3GUARD_METASTORE_LOCAL_ENTRY_TTL
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_S3GUARD_METASTORE_LOCAL_ENTRY_TTL
```
@Deprecated
public static final int DEFAULT_S3GUARD_METASTORE_LOCAL_ENTRY_TTL
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_METASTORE_DYNAMO
```
@Deprecated
public static final String S3GUARD_METASTORE_DYNAMO
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_DISABLED_WARN_LEVEL
```
@Deprecated
public static final String S3GUARD_DISABLED_WARN_LEVEL
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_S3GUARD_DISABLED_WARN_LEVEL
```
@Deprecated
public static final String DEFAULT_S3GUARD_DISABLED_WARN_LEVEL
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - FAIL_INJECT_INCONSISTENCY_KEY
```
@Deprecated
public static final String FAIL_INJECT_INCONSISTENCY_KEY
```
    Deprecated.
    
    Inconsistency (visibility delay) injection settings. No longer used.
    
    See Also:
    
    Constant Field Values
  - FAIL_INJECT_INCONSISTENCY_MSEC
```
@Deprecated
public static final String FAIL_INJECT_INCONSISTENCY_MSEC
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - FAIL_INJECT_INCONSISTENCY_PROBABILITY
```
@Deprecated
public static final String FAIL_INJECT_INCONSISTENCY_PROBABILITY
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - LIST_VERSION
```
@InterfaceStability.Unstable
public static final String LIST_VERSION
```
    S3 API level parameters.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_LIST_VERSION
```
@InterfaceStability.Unstable
public static final int DEFAULT_LIST_VERSION
```
    See Also:
    
    Constant Field Values
  - FAIL_INJECT_THROTTLE_PROBABILITY
```
@InterfaceStability.Unstable
public static final String FAIL_INJECT_THROTTLE_PROBABILITY
```
    See Also:
    
    Constant Field Values
  - FAIL_INJECT_CLIENT_FACTORY
```
@InterfaceStability.Unstable
public static final String FAIL_INJECT_CLIENT_FACTORY
```
    See Also:
    
    Constant Field Values
  - RETRY_LIMIT
```
public static final String RETRY_LIMIT
```
    Number of times to retry any repeatable S3 client request on failure, excluding throttling requests: "fs.s3a.retry.limit".
    
    See Also:
    
    Constant Field Values
  - RETRY_LIMIT_DEFAULT
```
public static final int RETRY_LIMIT_DEFAULT
```
    Default retry limit: 7.
    
    See Also:
    
    Constant Field Values
  - RETRY_INTERVAL
```
public static final String RETRY_INTERVAL
```
    Interval between retry attempts.: "fs.s3a.retry.interval".
    
    See Also:
    
    Constant Field Values
  - RETRY_INTERVAL_DEFAULT
```
public static final String RETRY_INTERVAL_DEFAULT
```
    Default retry interval: "500ms".
    
    See Also:
    
    Constant Field Values
  - RETRY_THROTTLE_LIMIT
```
public static final String RETRY_THROTTLE_LIMIT
```
    Number of times to retry any throttled request: "fs.s3a.retry.throttle.limit".
    
    See Also:
    
    Constant Field Values
  - RETRY_THROTTLE_LIMIT_DEFAULT
```
public static final int RETRY_THROTTLE_LIMIT_DEFAULT
```
    Default throttled retry limit: 20.
    
    See Also:
    
    Constant Field Values
  - RETRY_THROTTLE_INTERVAL
```
public static final String RETRY_THROTTLE_INTERVAL
```
    Interval between retry attempts on throttled requests: "fs.s3a.retry.throttle.interval".
    
    See Also:
    
    Constant Field Values
  - RETRY_THROTTLE_INTERVAL_DEFAULT
```
public static final String RETRY_THROTTLE_INTERVAL_DEFAULT
```
    Default throttled retry interval: "500ms".
    
    See Also:
    
    Constant Field Values
  - ETAG_CHECKSUM_ENABLED
```
public static final String ETAG_CHECKSUM_ENABLED
```
    Should etags be exposed as checksums?
    
    See Also:
    
    Constant Field Values
  - ETAG_CHECKSUM_ENABLED_DEFAULT
```
public static final boolean ETAG_CHECKSUM_ENABLED_DEFAULT
```
    Default value: false.
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_SOURCE
```
public static final String CHANGE_DETECT_SOURCE
```
    Where to get the value to use in change detection. E.g. eTag, or versionId?
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_SOURCE_ETAG
```
public static final String CHANGE_DETECT_SOURCE_ETAG
```
    eTag as the change detection mechanism.
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_SOURCE_VERSION_ID
```
public static final String CHANGE_DETECT_SOURCE_VERSION_ID
```
    Object versionId as the change detection mechanism.
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_SOURCE_DEFAULT
```
public static final String CHANGE_DETECT_SOURCE_DEFAULT
```
    Default change detection mechanism: eTag.
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_MODE
```
public static final String CHANGE_DETECT_MODE
```
    Mode to run change detection in. Server side comparison? Client side comparison? Client side compare and warn rather than exception? Don't bother at all?
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_MODE_CLIENT
```
public static final String CHANGE_DETECT_MODE_CLIENT
```
    Change is detected on the client side by comparing the returned id with the expected id. A difference results in RemoteFileChangedException.
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_MODE_SERVER
```
public static final String CHANGE_DETECT_MODE_SERVER
```
    Change is detected by passing the expected value in the GetObject request. If the expected value is unavailable, RemoteFileChangedException is thrown.
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_MODE_WARN
```
public static final String CHANGE_DETECT_MODE_WARN
```
    Change is detected on the client side by comparing the returned id with the expected id. A difference results in a WARN level message being logged.
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_MODE_NONE
```
public static final String CHANGE_DETECT_MODE_NONE
```
    Change detection is turned off. Readers may see inconsistent results due to concurrent writes without any exception or warning messages. May be useful with third-party S3 API implementations that don't support one of the change detection modes.
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_MODE_DEFAULT
```
public static final String CHANGE_DETECT_MODE_DEFAULT
```
    Default change detection mode: server.
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_REQUIRE_VERSION
```
public static final String CHANGE_DETECT_REQUIRE_VERSION
```
    If true, raises a RemoteFileChangedException exception when S3 doesn't provide the attribute defined by fs.s3a.change.detection.source. For example, if source is versionId, but object versioning is not enabled on the bucket, or alternatively if source is eTag and a third-party S3 implementation that doesn't return eTag is used.
    When false, only a warning message will be logged for this condition.
    
    See Also:
    
    Constant Field Values
  - CHANGE_DETECT_REQUIRE_VERSION_DEFAULT
```
public static final boolean CHANGE_DETECT_REQUIRE_VERSION_DEFAULT
```
    Default change detection require version: true.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_CONSISTENCY_RETRY_LIMIT
```
@Deprecated
public static final String S3GUARD_CONSISTENCY_RETRY_LIMIT
```
    Deprecated.
    
    Number of times to retry any repeatable S3 client request on failure, excluding throttling requests: "fs.s3a.s3guard.consistency.retry.limit".
    
    See Also:
    
    Constant Field Values
  - S3GUARD_CONSISTENCY_RETRY_LIMIT_DEFAULT
```
@Deprecated
public static final int S3GUARD_CONSISTENCY_RETRY_LIMIT_DEFAULT
```
    Deprecated.
    
    Default retry limit: 7.
    
    See Also:
    
    Constant Field Values
  - S3GUARD_CONSISTENCY_RETRY_INTERVAL
```
@Deprecated
public static final String S3GUARD_CONSISTENCY_RETRY_INTERVAL
```
    Deprecated.
    
    Initial retry interval: "fs.s3a.s3guard.consistency.retry.interval".
    
    See Also:
    
    Constant Field Values
  - S3GUARD_CONSISTENCY_RETRY_INTERVAL_DEFAULT
```
@Deprecated
public static final String S3GUARD_CONSISTENCY_RETRY_INTERVAL_DEFAULT
```
    Deprecated.
    
    Default initial retry interval: "2s". The consistency retry probe uses exponential backoff, because each probe can cause the S3 load balancers to retain any 404 in its cache for longer. See HADOOP-16490.
    
    See Also:
    
    Constant Field Values
  - AWS_SERVICE_IDENTIFIER_S3
```
public static final String AWS_SERVICE_IDENTIFIER_S3
```
    See Also:
    
    Constant Field Values
  - AWS_SERVICE_IDENTIFIER_DDB
```
@Deprecated
public static final String AWS_SERVICE_IDENTIFIER_DDB
```
    Deprecated.
    
    See Also:
    
    Constant Field Values
  - AWS_SERVICE_IDENTIFIER_STS
```
public static final String AWS_SERVICE_IDENTIFIER_STS
```
    See Also:
    
    Constant Field Values
  - THREAD_POOL_SHUTDOWN_DELAY_SECONDS
```
public static final int THREAD_POOL_SHUTDOWN_DELAY_SECONDS
```
    How long to wait for the thread pool to terminate when cleaning up. Value: 30 seconds.
    
    See Also:
    
    Constant Field Values
  - DIRECTORY_MARKER_POLICY
```
public static final String DIRECTORY_MARKER_POLICY
```
    Policy for directory markers. This is a new feature of HADOOP-13230 which addresses some scale, performance and permissions issues -but at the risk of backwards compatibility.
    
    See Also:
    
    Constant Field Values
  - DIRECTORY_MARKER_POLICY_DELETE
```
public static final String DIRECTORY_MARKER_POLICY_DELETE
```
    Delete directory markers. This is the backwards compatible option. Value: "delete".
    
    See Also:
    
    Constant Field Values
  - DIRECTORY_MARKER_POLICY_KEEP
```
public static final String DIRECTORY_MARKER_POLICY_KEEP
```
    Retain directory markers. Value: "keep".
    
    See Also:
    
    Constant Field Values
  - DIRECTORY_MARKER_POLICY_AUTHORITATIVE
```
public static final String DIRECTORY_MARKER_POLICY_AUTHORITATIVE
```
    Retain directory markers in authoritative directory trees only. Value: "authoritative".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_DIRECTORY_MARKER_POLICY
```
public static final String DEFAULT_DIRECTORY_MARKER_POLICY
```
    Default retention policy: "keep".
    
    See Also:
    
    Constant Field Values
  - STORE_CAPABILITY_DIRECTORY_MARKER_AWARE
```
public static final String STORE_CAPABILITY_DIRECTORY_MARKER_AWARE
```
    PathCapabilities probe to verify that an S3A Filesystem has the changes needed to safely work with buckets where directoy markers have not been deleted. Value: "fs.s3a.capability.directory.marker.aware".
    
    See Also:
    
    Constant Field Values
  - STORE_CAPABILITY_DIRECTORY_MARKER_POLICY_KEEP
```
public static final String STORE_CAPABILITY_DIRECTORY_MARKER_POLICY_KEEP
```
    PathCapabilities probe to indicate that the filesystem keeps directory markers. Value: "fs.s3a.capability.directory.marker.policy.keep".
    
    See Also:
    
    Constant Field Values
  - STORE_CAPABILITY_DIRECTORY_MARKER_POLICY_DELETE
```
public static final String STORE_CAPABILITY_DIRECTORY_MARKER_POLICY_DELETE
```
    PathCapabilities probe to indicate that the filesystem deletes directory markers. Value: "fs.s3a.capability.directory.marker.policy.delete".
    
    See Also:
    
    Constant Field Values
  - STORE_CAPABILITY_DIRECTORY_MARKER_POLICY_AUTHORITATIVE
```
public static final String STORE_CAPABILITY_DIRECTORY_MARKER_POLICY_AUTHORITATIVE
```
    PathCapabilities probe to indicate that the filesystem keeps directory markers in authoritative paths only. Value: "fs.s3a.capability.directory.marker.policy.authoritative".
    
    See Also:
    
    Constant Field Values
  - STORE_CAPABILITY_DIRECTORY_MARKER_ACTION_KEEP
```
public static final String STORE_CAPABILITY_DIRECTORY_MARKER_ACTION_KEEP
```
    PathCapabilities probe to indicate that a path keeps directory markers. Value: "fs.s3a.capability.directory.marker.action.keep".
    
    See Also:
    
    Constant Field Values
  - STORE_CAPABILITY_DIRECTORY_MARKER_ACTION_DELETE
```
public static final String STORE_CAPABILITY_DIRECTORY_MARKER_ACTION_DELETE
```
    PathCapabilities probe to indicate that a path deletes directory markers. Value: "fs.s3a.capability.directory.marker.action.delete".
    
    See Also:
    
    Constant Field Values
  - XA_HEADER_PREFIX
```
public static final String XA_HEADER_PREFIX
```
    To comply with the XAttr rules, all headers of the object retrieved through the getXAttr APIs have the prefix: "header.".
    
    See Also:
    
    Constant Field Values
  - AWS_REGION
```
public static final String AWS_REGION
```
    AWS S3 region for the bucket. When set bypasses the construction of region through endpoint url.
    
    See Also:
    
    Constant Field Values
  - AWS_S3_CENTRAL_REGION
```
public static final String AWS_S3_CENTRAL_REGION
```
    The special S3 region which can be used to talk to any bucket. Value "us-east-1".
    
    See Also:
    
    Constant Field Values
  - AWS_S3_DEFAULT_REGION
```
public static final String AWS_S3_DEFAULT_REGION
```
    The default S3 region when using cross region client. Value "us-east-2".
    
    See Also:
    
    Constant Field Values
  - FIPS_ENDPOINT
```
public static final String FIPS_ENDPOINT
```
    Is the endpoint a FIPS endpoint? Can be queried as a path capability. Value "fs.s3a.endpoint.fips".
    
    See Also:
    
    Constant Field Values
  - ENDPOINT_FIPS_DEFAULT
```
public static final boolean ENDPOINT_FIPS_DEFAULT
```
    See Also:
    
    Constant Field Values
  - AWS_S3_ACCESSPOINT_REQUIRED
```
public static final String AWS_S3_ACCESSPOINT_REQUIRED
```
    Require that all S3 access is made through Access Points.
    
    See Also:
    
    Constant Field Values
  - FS_S3A_CREATE_PERFORMANCE
```
public static final String FS_S3A_CREATE_PERFORMANCE
```
    Flag for create performance. This can be set in the {code createFile()} builder. Value "fs.s3a.create.performance".
    
    See Also:
    
    Constant Field Values
  - FS_S3A_CREATE_PERFORMANCE_DEFAULT
```
public static final boolean FS_S3A_CREATE_PERFORMANCE_DEFAULT
```
    Default value for create performance in an S3A FS. Value false.
    
    See Also:
    
    Constant Field Values
  - FS_S3A_CREATE_PERFORMANCE_ENABLED
```
public static final String FS_S3A_CREATE_PERFORMANCE_ENABLED
```
    Capability to indicate that the FS has been instantiated with FS_S3A_CREATE_PERFORMANCE set to true. Value "fs.s3a.create.performance.enabled".
    
    See Also:
    
    Constant Field Values
  - FS_S3A_CREATE_HEADER
```
public static final String FS_S3A_CREATE_HEADER
```
    Prefix for adding a header to the object when created. The actual value must have a "." suffix and then the actual header. This is *not* a configuration option; it is only for use in the {code createFile()} builder. Value "fs.s3a.create.header".
    
    See Also:
    
    Constant Field Values
  - AWS_S3_VECTOR_READS_MIN_SEEK_SIZE
```
public static final String AWS_S3_VECTOR_READS_MIN_SEEK_SIZE
```
    What is the smallest reasonable seek in bytes such that we group ranges together during vectored read operation. Value : "fs.s3a.vectored.read.min.seek.size".
    
    See Also:
    
    Constant Field Values
  - AWS_S3_VECTOR_READS_MAX_MERGED_READ_SIZE
```
public static final String AWS_S3_VECTOR_READS_MAX_MERGED_READ_SIZE
```
    What is the largest merged read size in bytes such that we group ranges together during vectored read. Setting this value to 0 will disable merging of ranges. Value : "fs.s3a.vectored.read.max.merged.size".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_AWS_S3_VECTOR_READS_MIN_SEEK_SIZE
```
public static final int DEFAULT_AWS_S3_VECTOR_READS_MIN_SEEK_SIZE
```
    Default minimum seek in bytes during vectored reads : 4896.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_AWS_S3_VECTOR_READS_MAX_MERGED_READ_SIZE
```
public static final int DEFAULT_AWS_S3_VECTOR_READS_MAX_MERGED_READ_SIZE
```
    Default maximum read size in bytes during vectored reads : 1253376.
    
    See Also:
    
    Constant Field Values
  - AWS_S3_VECTOR_ACTIVE_RANGE_READS
```
public static final String AWS_S3_VECTOR_ACTIVE_RANGE_READS
```
    Maximum number of range reads a single input stream can have active (downloading, or queued) to the central FileSystem instance's pool of queued operations. This stops a single stream overloading the shared thread pool. "fs.s3a.vectored.active.ranged.reads"
    Default is DEFAULT_AWS_S3_VECTOR_ACTIVE_RANGE_READS
    
    See Also:
    
    Constant Field Values
  - DEFAULT_AWS_S3_VECTOR_ACTIVE_RANGE_READS
```
public static final int DEFAULT_AWS_S3_VECTOR_ACTIVE_RANGE_READS
```
    Limit of queued range data download operations during vectored read. Value: 4
    
    See Also:
    
    Constant Field Values
  - AWS_AUTH_CLASS_PREFIX
```
public static final String AWS_AUTH_CLASS_PREFIX
```
    Prefix of auth classes in AWS SDK V1.
    
    See Also:
    
    Constant Field Values
  - PREFETCH_ENABLED_KEY
```
public static final String PREFETCH_ENABLED_KEY
```
    Controls whether the prefetching input stream is enabled.
    
    See Also:
    
    Constant Field Values
  - PREFETCH_ENABLED_DEFAULT
```
public static final boolean PREFETCH_ENABLED_DEFAULT
```
    Default option as to whether the prefetching input stream is enabled.
    
    See Also:
    
    Constant Field Values
  - PREFETCH_BLOCK_SIZE_KEY
```
public static final String PREFETCH_BLOCK_SIZE_KEY
```
    The size of a single prefetched block in number of bytes.
    
    See Also:
    
    Constant Field Values
  - PREFETCH_BLOCK_DEFAULT_SIZE
```
public static final int PREFETCH_BLOCK_DEFAULT_SIZE
```
    See Also:
    
    Constant Field Values
  - PREFETCH_BLOCK_COUNT_KEY
```
public static final String PREFETCH_BLOCK_COUNT_KEY
```
    Maximum number of blocks prefetched at any given time.
    
    See Also:
    
    Constant Field Values
  - PREFETCH_BLOCK_DEFAULT_COUNT
```
public static final int PREFETCH_BLOCK_DEFAULT_COUNT
```
    See Also:
    
    Constant Field Values
  - MULTIPART_UPLOADS_ENABLED
```
public static final String MULTIPART_UPLOADS_ENABLED
```
    Option to enable or disable the multipart uploads. Value: "fs.s3a.multipart.uploads.enabled".
    Default is DEFAULT_MULTIPART_UPLOAD_ENABLED.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_MULTIPART_UPLOAD_ENABLED
```
public static final boolean DEFAULT_MULTIPART_UPLOAD_ENABLED
```
    Default value for multipart uploads. true
    
    See Also:
    
    Constant Field Values
  - STORE_CAPABILITY_MULTIPART_UPLOAD_ENABLED
```
public static final String STORE_CAPABILITY_MULTIPART_UPLOAD_ENABLED
```
    Stream supports multipart uploads to the given path.
    
    See Also:
    
    Constant Field Values
  - STORE_CAPABILITY_DIRECTORY_MARKER_MULTIPART_UPLOAD_ENABLED
```
@Deprecated
public static final String STORE_CAPABILITY_DIRECTORY_MARKER_MULTIPART_UPLOAD_ENABLED
```
    Deprecated.
    
    Stream supports multipart uploads to the given path. This name is wrong, but it has shipped so must be retained.
    
    See Also:
    
    Constant Field Values
  - PREFETCH_MAX_BLOCKS_COUNT
```
public static final String PREFETCH_MAX_BLOCKS_COUNT
```
    Prefetch max blocks count config. Value = "fs.s3a.prefetch.max.blocks.count"
    
    See Also:
    
    Constant Field Values
  - DEFAULT_PREFETCH_MAX_BLOCKS_COUNT
```
public static final int DEFAULT_PREFETCH_MAX_BLOCKS_COUNT
```
    Default value for max blocks count config. Value = 4
    
    See Also:
    
    Constant Field Values
  - BUCKET_REGION_HEADER
```
public static final String BUCKET_REGION_HEADER
```
    The bucket region header.
    
    See Also:
    
    Constant Field Values
  - DIRECTORY_OPERATIONS_PURGE_UPLOADS
```
public static final String DIRECTORY_OPERATIONS_PURGE_UPLOADS
```
    Should directory operations purge uploads? This adds at least one parallelized list operation to the call, plus the overhead of deletions. Value: "fs.s3a.directory.operations.purge.uploads".
    
    See Also:
    
    Constant Field Values
  - DIRECTORY_OPERATIONS_PURGE_UPLOADS_DEFAULT
```
public static final boolean DIRECTORY_OPERATIONS_PURGE_UPLOADS_DEFAULT
```
    Default value of DIRECTORY_OPERATIONS_PURGE_UPLOADS: false.
    
    See Also:
    
    Constant Field Values
  - OPTIMIZED_COPY_FROM_LOCAL
```
public static final String OPTIMIZED_COPY_FROM_LOCAL
```
    Is the higher performance copy from local file to S3 enabled? This switch allows for it to be disabled if there are problems. Value: "fs.s3a.optimized.copy.from.local.enabled".
    
    See Also:
    
    Constant Field Values
  - OPTIMIZED_COPY_FROM_LOCAL_DEFAULT
```
public static final boolean OPTIMIZED_COPY_FROM_LOCAL_DEFAULT
```
    Default value for OPTIMIZED_COPY_FROM_LOCAL. Value: true.
    
    See Also:
    
    Constant Field Values
  - STORE_CAPABILITY_AWS_V2
```
public static final String STORE_CAPABILITY_AWS_V2
```
    Is this a v2 SDK build? value "fs.s3a.capability.aws.v2".
    
    See Also:
    
    Constant Field Values
  - S3EXPRESS_CREATE_SESSION
```
public static final String S3EXPRESS_CREATE_SESSION
```
    Use the S3 Express createSession() operation to authenticate with S3Express storage?
    Value: "fs.s3a.s3express.create.session".
    This is preferred as it is faster, but it does require extra IAM permissions and is not suited to some deployments, including some of the hadoop-aws test suites.
    
    See Also:
    
    Constant Field Values
  - S3EXPRESS_CREATE_SESSION_DEFAULT
```
public static final boolean S3EXPRESS_CREATE_SESSION_DEFAULT
```
    Default value of S3EXPRESS_CREATE_SESSION. Value: true.
    
    See Also:
    
    Constant Field Values
  - HTTP_SIGNER_ENABLED
```
public static final String HTTP_SIGNER_ENABLED
```
    Flag to switch to a v2 SDK HTTP signer. Value "fs.s3a.http.signer.enabled".
    
    See Also:
    
    Constant Field Values
  - HTTP_SIGNER_ENABLED_DEFAULT
```
public static final boolean HTTP_SIGNER_ENABLED_DEFAULT
```
    Default value of HTTP_SIGNER_ENABLED: false.
    
    See Also:
    
    Constant Field Values
  - HTTP_SIGNER_CLASS_NAME
```
public static final String HTTP_SIGNER_CLASS_NAME
```
    Classname of the http signer to use when HTTP_SIGNER_ENABLED is true: "fs.s3a.http.signer.class".
    
    See Also:
    
    Constant Field Values
  - CHECKSUM_VALIDATION
```
public static final String CHECKSUM_VALIDATION
```
    Should checksums be validated on download? This is slower and not needed on TLS connections. Value: "fs.s3a.checksum.validation".
    
    See Also:
    
    Constant Field Values
  - CHECKSUM_VALIDATION_DEFAULT
```
public static final boolean CHECKSUM_VALIDATION_DEFAULT
```
    Default value of CHECKSUM_VALIDATION. Value: false.
    
    See Also:
    
    Constant Field Values
  - AWS_S3_CLASSLOADER_ISOLATION
```
public static final String AWS_S3_CLASSLOADER_ISOLATION
```
    Are extensions classes, such as fs.s3a.aws.credentials.provider, going to be loaded from the same classloader that loaded the S3AFileSystem? It is useful to turn classloader isolation off for Apache Spark applications that might load S3AFileSystem from the Spark distribution (Launcher classloader) while users might want to provide custom extensions (loaded by Spark MutableClassloader). Value: "fs.s3a.classloader.isolation".
    
    See Also:
    
    Constant Field Values
  - DEFAULT_AWS_S3_CLASSLOADER_ISOLATION
```
public static final boolean DEFAULT_AWS_S3_CLASSLOADER_ISOLATION
```
    Default value for AWS_S3_CLASSLOADER_ISOLATION. Value: true.
    
    See Also:
    
    Constant Field Values

Class Constants

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

HADOOP_TMP_DIR

MULTIPART_MIN_SIZE

ACCESS_KEY

SECRET_KEY

AWS_CREDENTIALS_PROVIDER

AWS_CREDENTIALS_PROVIDER_MAPPING

S3A_SECURITY_CREDENTIAL_PROVIDER_PATH

SESSION_TOKEN

ASSUMED_ROLE_ARN

ASSUMED_ROLE_SESSION_NAME

ASSUMED_ROLE_SESSION_DURATION

ASSUMED_ROLE_STS_ENDPOINT

DEFAULT_ASSUMED_ROLE_STS_ENDPOINT

ASSUMED_ROLE_STS_ENDPOINT_REGION

ASSUMED_ROLE_STS_ENDPOINT_REGION_DEFAULT

ASSUMED_ROLE_SESSION_DURATION_DEFAULT

ASSUMED_ROLE_CREDENTIALS_PROVIDER

ASSUMED_ROLE_POLICY

ASSUMED_ROLE_CREDENTIALS_DEFAULT

MAX_TOTAL_TASKS

DEFAULT_MAX_TOTAL_TASKS

MAXIMUM_CONNECTIONS

DEFAULT_MAXIMUM_CONNECTIONS

CONNECTION_TTL

DEFAULT_CONNECTION_TTL_DURATION

DEFAULT_CONNECTION_TTL

SECURE_CONNECTIONS

DEFAULT_SECURE_CONNECTIONS

ALLOW_REQUESTER_PAYS

DEFAULT_ALLOW_REQUESTER_PAYS

SSL_CHANNEL_MODE

DEFAULT_SSL_CHANNEL_MODE

ENDPOINT

DEFAULT_ENDPOINT

CENTRAL_ENDPOINT

PATH_STYLE_ACCESS

PROXY_HOST

PROXY_PORT

PROXY_USERNAME

PROXY_PASSWORD

PROXY_DOMAIN

PROXY_WORKSTATION

PROXY_SECURED

MAX_ERROR_RETRIES

DEFAULT_MAX_ERROR_RETRIES

EXPERIMENTAL_AWS_INTERNAL_THROTTLING

EXPERIMENTAL_AWS_INTERNAL_THROTTLING_DEFAULT

MINIMUM_NETWORK_OPERATION_DURATION

ESTABLISH_TIMEOUT

DEFAULT_ESTABLISH_TIMEOUT_DURATION

DEFAULT_ESTABLISH_TIMEOUT

SOCKET_TIMEOUT

DEFAULT_SOCKET_TIMEOUT_DURATION

DEFAULT_SOCKET_TIMEOUT

REQUEST_TIMEOUT

DEFAULT_REQUEST_TIMEOUT_DURATION

DEFAULT_REQUEST_TIMEOUT

CONNECTION_ACQUISITION_TIMEOUT

DEFAULT_CONNECTION_ACQUISITION_TIMEOUT_DURATION

CONNECTION_KEEPALIVE

DEFAULT_CONNECTION_KEEPALIVE

CONNECTION_IDLE_TIME

DEFAULT_CONNECTION_IDLE_TIME_DURATION

SOCKET_SEND_BUFFER

DEFAULT_SOCKET_SEND_BUFFER

SOCKET_RECV_BUFFER

DEFAULT_SOCKET_RECV_BUFFER

MAX_PAGING_KEYS

DEFAULT_MAX_PAGING_KEYS

MAX_THREADS

DEFAULT_MAX_THREADS

KEEPALIVE_TIME

DEFAULT_KEEPALIVE_TIME_DURATION

DEFAULT_KEEPALIVE_TIME

MULTIPART_SIZE