com.spotify.helios.servicescommon

Class ZooKeeperRegistrarUtil

java.lang.Object

com.spotify.helios.servicescommon.ZooKeeperRegistrarUtil

public class ZooKeeperRegistrarUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
ZooKeeperRegistrarUtil()

Method Summary

Modifier and Type	Method and Description
static void	deregisterHost(ZooKeeperClient client, String host)
static boolean	isHostRegistered(ZooKeeperClient client, String host)
static void	registerHost(ZooKeeperClient client, String idPath, String hostname, String hostId)
static void	reRegisterHost(ZooKeeperClient client, String host, String hostId) Re-register an agent with a different host id.

Methods inherited from class java.lang.Object

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

Constructor Detail

ZooKeeperRegistrarUtil

public ZooKeeperRegistrarUtil()

Method Detail

isHostRegistered

public static boolean isHostRegistered(ZooKeeperClient client,
                                       String host)

registerHost

public static void registerHost(ZooKeeperClient client,
                                String idPath,
                                String hostname,
                                String hostId)
                         throws org.apache.zookeeper.KeeperException

Throws:

org.apache.zookeeper.KeeperException

reRegisterHost

public static void reRegisterHost(ZooKeeperClient client,
                                  String host,
                                  String hostId)
                           throws HostNotFoundException,
                                  org.apache.zookeeper.KeeperException

Re-register an agent with a different host id. Will remove the existing status of the agent but preserve any jobs deployed to the host and their history.

Parameters:

client - ZooKeeperClient

host - Host

hostId - ID of the host

Throws:

HostNotFoundException - If the hostname we are trying to re-register as doesn't exist.

org.apache.zookeeper.KeeperException - If an unexpected zookeeper error occurs.

deregisterHost

public static void deregisterHost(ZooKeeperClient client,
                                  String host)
                           throws HostNotFoundException,
                                  HostStillInUseException

Throws:

HostNotFoundException

HostStillInUseException