org.apache.hadoop.hbase.zookeeper

Class ZooKeeperHelper

java.lang.Object

org.apache.hadoop.hbase.zookeeper.ZooKeeperHelper

@InterfaceAudience.Private
public final class ZooKeeperHelper
extends Object

Methods that help working with ZooKeeper

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ZooKeeperHelper()

Method Summary

Modifier and Type	Method and Description
static org.apache.zookeeper.ZooKeeper	ensureConnectedZooKeeper(org.apache.zookeeper.ZooKeeper zookeeper, int timeout) Ensure passed zookeeper is connected.
static org.apache.zookeeper.ZooKeeper	getConnectedZooKeeper(String connectString, int sessionTimeoutMs) Get a ZooKeeper instance and wait until it connected before returning.

Methods inherited from class java.lang.Object

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

Constructor Detail

ZooKeeperHelper

private ZooKeeperHelper()

Method Detail

getConnectedZooKeeper

public static org.apache.zookeeper.ZooKeeper getConnectedZooKeeper(String connectString,
                                                                   int sessionTimeoutMs)
                                                            throws IOException

Get a ZooKeeper instance and wait until it connected before returning.

Parameters:

sessionTimeoutMs - Used as session timeout passed to the created ZooKeeper AND as the timeout to wait on connection establishment.

Throws:

IOException

ensureConnectedZooKeeper

public static org.apache.zookeeper.ZooKeeper ensureConnectedZooKeeper(org.apache.zookeeper.ZooKeeper zookeeper,
                                                                      int timeout)
                                                               throws ZooKeeperConnectionException

Ensure passed zookeeper is connected.

Parameters:

timeout - Time to wait on established Connection

Throws:

ZooKeeperConnectionException