com.github.ambry.config

Class ClusterMapConfig

java.lang.Object

com.github.ambry.config.ClusterMapConfig

public class ClusterMapConfig
extends java.lang.Object

The configs for resource state.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	AMBRY_STATE_MODEL_DEF
java.lang.String	clusterMapClusterAgentsFactory The clustermap agent factory to use for instantiating the Cluster Map and the Cluster Participant.
java.lang.String	clusterMapClusterName The name of the associated cluster for this node.
java.lang.Long	clustermapCurrentXid The current xid for this cluster manager.
java.lang.String	clusterMapDatacenterName The name of the associated datacenter for this node.
java.lang.String	clusterMapDcsZkConnectStrings Serialized json containing the information about all the zk hosts that the Helix based cluster manager should be aware of.
java.lang.String	clusterMapDefaultPartitionClass The partition class to assign to a partition if one is not supplied
boolean	clusterMapEnablePartitionOverride Indicate if cluster manager enables override on properties of partition.
int	clusterMapFixedTimeoutDatanodeErrorThreshold The threshold for the number of consecutive errors to tolerate for a datanode.
int	clusterMapFixedTimeoutDataNodeRetryBackoffMs The time to wait before a datanode is retried after it has been determined to be down.
int	clusterMapFixedTimeoutDiskErrorThreshold The threshold for the number of errors to tolerate for a disk.
int	clusterMapFixedTimeoutDiskRetryBackoffMs The time to wait before a disk is retried after it has been determined to be down.
int	clusterMapFixedTimeoutReplicaErrorThreshold The threshold for the number of errors to tolerate for a replica.
int	clusterMapFixedTimeoutReplicaRetryBackoffMs The time to wait before a replica is retried after it has been determined to be down.
java.lang.String	clusterMapHostName The host name associated with this node.
boolean	clustermapListenCrossColo If set to false, the Helix based cluster manager will only listen to changes to the cluster in the local colo.
java.lang.Integer	clusterMapPort The port number associated with this node.
boolean	clusterMapResolveHostnames Indicates if a reverse DNS lookup should be used to try and obtain the fully qualified domain names of cluster map host entries.
java.lang.String	clusterMapResourceStatePolicyFactory The factory class used to get the resource state policies.
java.lang.String	clusterMapSslEnabledDatacenters List of Datacenters to which local node needs SSL encryption to communicate
java.lang.String	clustermapStateModelDefinition
static java.lang.String	DEFAULT_STATE_MODEL_DEF

Constructor Summary

Constructors

Constructor and Description
ClusterMapConfig(VerifiableProperties verifiableProperties)

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_STATE_MODEL_DEF

public static final java.lang.String DEFAULT_STATE_MODEL_DEF

See Also:

Constant Field Values

AMBRY_STATE_MODEL_DEF

public static final java.lang.String AMBRY_STATE_MODEL_DEF

See Also:

Constant Field Values

clusterMapResourceStatePolicyFactory

@Config(value="clustermap.resourcestatepolicy.factory")
 @Default(value="com.github.ambry.clustermap.FixedBackoffResourceStatePolicyFactory")
public final java.lang.String clusterMapResourceStatePolicyFactory

The factory class used to get the resource state policies.

clusterMapFixedTimeoutDatanodeErrorThreshold

@Config(value="clustermap.fixedtimeout.datanode.error.threshold")
 @Default(value="6")
public final int clusterMapFixedTimeoutDatanodeErrorThreshold

The threshold for the number of consecutive errors to tolerate for a datanode.

clusterMapFixedTimeoutDataNodeRetryBackoffMs

@Config(value="clustermap.fixedtimeout.datanode.retry.backoff.ms")
 @Default(value="5 * 60 * 1000")
public final int clusterMapFixedTimeoutDataNodeRetryBackoffMs

The time to wait before a datanode is retried after it has been determined to be down.

clusterMapFixedTimeoutDiskErrorThreshold

@Config(value="clustermap.fixedtimeout.disk.error.threshold")
 @Default(value="1")
public final int clusterMapFixedTimeoutDiskErrorThreshold

The threshold for the number of errors to tolerate for a disk.

clusterMapFixedTimeoutDiskRetryBackoffMs

@Config(value="clustermap.fixedtimeout.disk.retry.backoff.ms")
 @Default(value="10 * 60 * 1000")
public final int clusterMapFixedTimeoutDiskRetryBackoffMs

The time to wait before a disk is retried after it has been determined to be down.

clusterMapFixedTimeoutReplicaErrorThreshold

@Config(value="clustermap.fixedtimeout.replica.error.threshold")
 @Default(value="1")
public final int clusterMapFixedTimeoutReplicaErrorThreshold

The threshold for the number of errors to tolerate for a replica.

clusterMapFixedTimeoutReplicaRetryBackoffMs

@Config(value="clustermap.fixedtimeout.replica.retry.backoff.ms")
 @Default(value="10 * 60 * 1000")
public final int clusterMapFixedTimeoutReplicaRetryBackoffMs

The time to wait before a replica is retried after it has been determined to be down.

clusterMapSslEnabledDatacenters

@Config(value="clustermap.ssl.enabled.datacenters")
 @Default(value="")
public final java.lang.String clusterMapSslEnabledDatacenters

List of Datacenters to which local node needs SSL encryption to communicate

clusterMapClusterAgentsFactory

@Config(value="clustermap.clusteragents.factory")
 @Default(value="com.github.ambry.clustermap.StaticClusterAgentsFactory")
public final java.lang.String clusterMapClusterAgentsFactory

The clustermap agent factory to use for instantiating the Cluster Map and the Cluster Participant.

clusterMapDcsZkConnectStrings

@Config(value="clustermap.dcs.zk.connect.strings")
 @Default(value="")
public final java.lang.String clusterMapDcsZkConnectStrings

Serialized json containing the information about all the zk hosts that the Helix based cluster manager should be aware of. This information should be of the following form: { "zkInfo" : [ { "datacenter":"dc1", "id": "1", "zkConnectStr":"abc.example.com:2199", }, { "datacenter":"dc2", "id" : "2", "zkConnectStr":"def.example.com:2300", } ] }

clusterMapClusterName

@Config(value="clustermap.cluster.name")
public final java.lang.String clusterMapClusterName

The name of the associated cluster for this node.

clusterMapDatacenterName

@Config(value="clustermap.datacenter.name")
public final java.lang.String clusterMapDatacenterName

The name of the associated datacenter for this node.

clusterMapHostName

@Config(value="clustermap.host.name")
public final java.lang.String clusterMapHostName

The host name associated with this node.

clusterMapPort

@Config(value="clustermap.port")
 @Default(value="null")
public final java.lang.Integer clusterMapPort

The port number associated with this node.

clusterMapResolveHostnames

@Config(value="clustermap.resolve.hostnames")
 @Default(value="true")
public final boolean clusterMapResolveHostnames

Indicates if a reverse DNS lookup should be used to try and obtain the fully qualified domain names of cluster map host entries. By default this is enabled and disabling should only be needed when a node's name cannot be looked-up via a reverse lookup. For example when the node is known to Ambry by a CNAME record. Beware that disabling this option also prevents Ambry from checking if a nodes naming configuration is correct. For example there is no way for Ambry to check if the node config for 'host1.example.com' is actually deployed on a host called 'host1.example.com'.

clusterMapDefaultPartitionClass

@Config(value="clustermap.default.partition.class")
 @Default(value="max-replicas-all-datacenters")
public final java.lang.String clusterMapDefaultPartitionClass

The partition class to assign to a partition if one is not supplied

clustermapCurrentXid

@Config(value="clustermap.current.xid")
 @Default(value="Long.MAX_VALUE")
public final java.lang.Long clustermapCurrentXid

The current xid for this cluster manager. Any changes beyond this xid will be ignored by the cluster manager.

clusterMapEnablePartitionOverride

@Config(value="clustermap.enable.partition.override")
 @Default(value="false")
public final boolean clusterMapEnablePartitionOverride

Indicate if cluster manager enables override on properties of partition. These properties include partition state and partition class etc. By default this config is disabled, the state of partition is dynamically updated based on SEALED list from Helix. When something goes bad and partition override is enabled, cluster manager uses partition properties in Helix PropertyStore as source of truth to resolve partition state and ignores any changes from SEALED list in InstanceConfig.

clustermapListenCrossColo

@Config(value="clustermap.listen.cross.colo")
 @Default(value="true")
public final boolean clustermapListenCrossColo

If set to false, the Helix based cluster manager will only listen to changes to the cluster in the local colo. It will only connect to the remote ZK servers during initialization.

clustermapStateModelDefinition

@Config(value="clustermap.state.model.definition")
 @Default(value="LeaderStandby")
public final java.lang.String clustermapStateModelDefinition

Constructor Detail

ClusterMapConfig

public ClusterMapConfig(VerifiableProperties verifiableProperties)