org.apache.kyuubi.shaded.hive.common

Class ZooKeeperHiveHelper

java.lang.Object

org.apache.kyuubi.shaded.hive.common.ZooKeeperHiveHelper

public class ZooKeeperHiveHelper
extends Object

ZooKeeperHiveHelper. A helper class to hold ZooKeeper related configuration, to register and deregister ZooKeeper node for a given server and to fetch registered server URIs for clients.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ZooKeeperHiveHelper.ZooKeeperHiveHelperBuilder ZooKeeperHiveHelperBuilder.

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	LOG
static String	ZOOKEEPER_PATH_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
ZooKeeperHiveHelper(ZooKeeperHiveHelper.ZooKeeperHiveHelperBuilder builder)

Method Summary

Modifier and Type	Method and Description
void	addServerInstanceToZooKeeper(String znodePathPrefix, String znodeData, org.apache.kyuubi.shaded.curator.framework.api.ACLProvider zooKeeperAclProvider, ZKDeRegisterWatcher watcher) Adds a server instance to ZooKeeper as a znode.
static ZooKeeperHiveHelper.ZooKeeperHiveHelperBuilder	builder()
void	deregisterZnode()
org.apache.kyuubi.shaded.curator.framework.CuratorFramework	getNewZookeeperClient()
org.apache.kyuubi.shaded.curator.framework.CuratorFramework	getNewZookeeperClient(org.apache.kyuubi.shaded.curator.framework.api.ACLProvider zooKeeperAclProvider)
org.apache.kyuubi.shaded.curator.framework.CuratorFramework	getNewZookeeperClient(org.apache.kyuubi.shaded.curator.framework.api.ACLProvider zooKeeperAclProvider, String nameSpace)
String	getQuorumServers() Get the ensemble server addresses.
List<String>	getServerUris() This method is supposed to be called from client code connecting to one of the servers managed by the configured ZooKeeper.
boolean	isDeregisteredWithZooKeeper()
void	removeServerInstanceFromZooKeeper()
org.apache.kyuubi.shaded.curator.framework.CuratorFramework	startZookeeperClient(org.apache.kyuubi.shaded.curator.framework.api.ACLProvider zooKeeperAclProvider, boolean addParentNode)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.slf4j.Logger LOG

ZOOKEEPER_PATH_SEPARATOR

public static final String ZOOKEEPER_PATH_SEPARATOR

See Also:

Constant Field Values

Constructor Detail

ZooKeeperHiveHelper

public ZooKeeperHiveHelper(ZooKeeperHiveHelper.ZooKeeperHiveHelperBuilder builder)

Method Detail

builder

public static ZooKeeperHiveHelper.ZooKeeperHiveHelperBuilder builder()

getQuorumServers

public String getQuorumServers()

Get the ensemble server addresses. The format is: host1:port, host2:port..

addServerInstanceToZooKeeper

public void addServerInstanceToZooKeeper(String znodePathPrefix,
                                         String znodeData,
                                         org.apache.kyuubi.shaded.curator.framework.api.ACLProvider zooKeeperAclProvider,
                                         ZKDeRegisterWatcher watcher)
                                  throws Exception

Adds a server instance to ZooKeeper as a znode.

Throws:

Exception

startZookeeperClient

public org.apache.kyuubi.shaded.curator.framework.CuratorFramework startZookeeperClient(org.apache.kyuubi.shaded.curator.framework.api.ACLProvider zooKeeperAclProvider,
                                                                                        boolean addParentNode)
                                                                                 throws Exception

Throws:

Exception

getNewZookeeperClient

public org.apache.kyuubi.shaded.curator.framework.CuratorFramework getNewZookeeperClient()

getNewZookeeperClient

public org.apache.kyuubi.shaded.curator.framework.CuratorFramework getNewZookeeperClient(org.apache.kyuubi.shaded.curator.framework.api.ACLProvider zooKeeperAclProvider)

getNewZookeeperClient

public org.apache.kyuubi.shaded.curator.framework.CuratorFramework getNewZookeeperClient(org.apache.kyuubi.shaded.curator.framework.api.ACLProvider zooKeeperAclProvider,
                                                                                         String nameSpace)

removeServerInstanceFromZooKeeper

public void removeServerInstanceFromZooKeeper()
                                       throws Exception

Throws:

Exception

deregisterZnode

public void deregisterZnode()

isDeregisteredWithZooKeeper

public boolean isDeregisteredWithZooKeeper()

getServerUris

public List<String> getServerUris()
                           throws Exception

This method is supposed to be called from client code connecting to one of the servers managed by the configured ZooKeeper. It starts and closes its own ZooKeeper client instead of using the class member.

Returns:

list of server URIs stored under the configured zookeeper namespace

Throws:

Exception