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java.lang.Object org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager
@InterfaceAudience.Private public class ClientDistributedCacheManager
Manages internal configuration of the cache by the client for job submission.
Constructor Summary | |
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ClientDistributedCacheManager()
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Method Summary | |
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static void |
determineCacheVisibilities(org.apache.hadoop.conf.Configuration job)
Determines the visibilities of the distributed cache files and archives. |
static void |
determineTimestamps(org.apache.hadoop.conf.Configuration job)
Determines timestamps of files to be cached, and stores those in the configuration. |
static void |
getDelegationTokens(org.apache.hadoop.conf.Configuration job,
org.apache.hadoop.security.Credentials credentials)
For each archive or cache file - get the corresponding delegation token |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ClientDistributedCacheManager()
Method Detail |
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public static void determineTimestamps(org.apache.hadoop.conf.Configuration job) throws IOException
job
- Configuration of a job.
IOException
public static void getDelegationTokens(org.apache.hadoop.conf.Configuration job, org.apache.hadoop.security.Credentials credentials) throws IOException
job
- credentials
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IOException
public static void determineCacheVisibilities(org.apache.hadoop.conf.Configuration job) throws IOException
job
-
IOException
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