Package org.apache.hadoop.hbase.zookeeper

Interface Summary

Interface	Description
MetricsZooKeeperSource	Interface of the source that will export metrics about the ZooKeeper.

Class Summary

Class	Description
ClusterStatusTracker	Tracker on cluster settings up in zookeeper.
DeletionListener	A ZooKeeper watcher meant to detect deletions of ZNodes.
EmptyWatcher	An empty ZooKeeper watcher
HQuorumPeer	HBase's version of ZooKeeper's QuorumPeer.
InstancePending<T>	Placeholder of an instance which will be accessed by other threads but is not yet created.
InstancePending.InstanceHolder<T>
LoadBalancerTracker	Tracks the load balancer state up in ZK
MasterAddressTracker	Manages the location of the current active Master for the RegionServer.
MasterMaintenanceModeTracker	Tracks the master Maintenance Mode via ZK.
MetaTableLocator	Utility class to perform operation (get/wait for/verify/set/delete) on znode in ZooKeeper which keeps hbase:meta region server location.
MetricsZooKeeperSourceImpl	Class that transitions metrics from MetricsZooKeeper into the metrics subsystem.
MiniZooKeeperCluster	TODO: Most of the code in this class is ripped from ZooKeeper tests.
PendingWatcher	Placeholder of a watcher which might be triggered before the instance is not yet created.
ReadOnlyZKClient	A very simple read only zookeeper implementation without watcher support.
ReadOnlyZKClient.Task
RecoverableZooKeeper	A zookeeper that can handle 'recoverable' errors.
RegionNormalizerTracker	Tracks region normalizer state up in ZK
SnapshotCleanupTracker	Tracks status of snapshot auto cleanup based on TTL
ZKAclReset	You may add the jaas.conf option -Djava.security.auth.login.config=/PATH/jaas.conf You may also specify -D to set options "hbase.zookeeper.quorum" (it should be in hbase-site.xml) "zookeeper.znode.parent" (it should be in hbase-site.xml) Use -set-acls to set the ACLs, no option to erase ACLs
ZKClusterId	Publishes and synchronizes a unique identifier specific to a given HBase cluster.
ZKConfig	Utility methods for reading, and building the ZooKeeper configuration.
ZKConfig.ZKClusterKey
ZKLeaderManager	Deprecated Not used
ZKListener	Base class for internal listeners of ZooKeeper events.
ZKMainServer	Tool for running ZookeeperMain from HBase by reading a ZooKeeper server from HBase XML configuration.
ZKMainServer.HACK_UNTIL_ZOOKEEPER_1897_ZooKeeperMain	ZooKeeper 3.4.6 broke being able to pass commands on command line.
ZKMetadata	The metadata append to the start of data on zookeeper.
ZKNodeTracker	Tracks the availability and value of a single ZooKeeper node.
ZKServerTool	Tool for reading ZooKeeper servers from HBase XML configuration and producing a line-by-line list for use by bash scripts.
ZKSplitLog	Deprecated since 2.4.0 and 3.0.0 replaced by procedure-based WAL splitting; see SplitWALManager.
ZKUtil	Internal HBase utility class for ZooKeeper.
ZKUtil.JaasConfiguration	A JAAS configuration that defines the login modules that we want to use for login.
ZKUtil.NodeAndData	Deprecated Unused
ZKUtil.ZKUtilOp	Represents an action taken by ZKUtil, e.g.
ZKUtil.ZKUtilOp.CreateAndFailSilent	ZKUtilOp representing createAndFailSilent in ZooKeeper (attempt to create node, ignore error if already exists)
ZKUtil.ZKUtilOp.DeleteNodeFailSilent	ZKUtilOp representing deleteNodeFailSilent in ZooKeeper (attempt to delete node, ignore error if node doesn't exist)
ZKUtil.ZKUtilOp.SetData	ZKUtilOp representing setData in ZooKeeper
ZKWatcher	Acts as the single ZooKeeper Watcher.
ZNodePaths	Class that hold all the paths of znode for HBase.
ZooKeeperHelper	Methods that help working with ZooKeeper