org.apache.hadoop.hbase.zookeeper
Class MetaNodeTracker

java.lang.Object
  org.apache.hadoop.hbase.zookeeper.ZooKeeperListener
      org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker
          org.apache.hadoop.hbase.zookeeper.MetaNodeTracker

@InterfaceAudience.Private
public class MetaNodeTracker
extends ZooKeeperNodeTracker

Tracks the unassigned zookeeper node used by the META table.

If META is already assigned when instantiating this class, you will not receive any notification for that assignment. You will receive a notification after META has been successfully assigned to a new location.

Field Summary

Fields inherited from class org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker

abortable, node

Fields inherited from class org.apache.hadoop.hbase.zookeeper.ZooKeeperListener

watcher

Constructor Summary

MetaNodeTracker(ZooKeeperWatcher watcher, Abortable abortable)
Creates a meta node tracker.

Method Summary

void	nodeDeleted(String path) Called when a node has been deleted

Methods inherited from class org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker

blockUntilAvailable, blockUntilAvailable, checkIfBaseNodeAvailable, getData, getNode, nodeCreated, nodeDataChanged, start, stop

Methods inherited from class org.apache.hadoop.hbase.zookeeper.ZooKeeperListener

nodeChildrenChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

MetaNodeTracker

public MetaNodeTracker(ZooKeeperWatcher watcher,
                       Abortable abortable)

Creates a meta node tracker.

Parameters:

watcher -

abortable -

Method Detail

nodeDeleted

public void nodeDeleted(String path)

Description copied from class: ZooKeeperListener

Called when a node has been deleted

Overrides:

nodeDeleted in class ZooKeeperNodeTracker

Parameters:

path - full path of the deleted node