org.apache.hudi.client.transaction.lock

Class ZookeeperBasedLockProvider

java.lang.Object

org.apache.hudi.client.transaction.lock.ZookeeperBasedLockProvider

All Implemented Interfaces:

Serializable, AutoCloseable, Lock, LockProvider<org.apache.curator.framework.recipes.locks.InterProcessMutex>

@NotThreadSafe
public class ZookeeperBasedLockProvider
extends Object
implements LockProvider<org.apache.curator.framework.recipes.locks.InterProcessMutex>, Serializable

A zookeeper based lock. This LockProvider implementation allows to lock table operations using zookeeper. Users need to have a Zookeeper cluster deployed to be able to use this lock.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected LockConfiguration	lockConfiguration

Constructor Summary

Constructors

Constructor and Description
ZookeeperBasedLockProvider(LockConfiguration lockConfiguration, org.apache.hadoop.conf.Configuration conf)
ZookeeperBasedLockProvider(LockConfiguration lockConfiguration, org.apache.curator.framework.CuratorFramework curatorFrameworkClient)

Method Summary

Modifier and Type	Method and Description
void	close()
protected String	generateLogStatement(LockState state, String suffix)
org.apache.curator.framework.recipes.locks.InterProcessMutex	getLock()
boolean	tryLock(long time, TimeUnit unit)
void	unlock()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hudi.common.lock.LockProvider

lock, lockInterruptibly, newCondition, tryLock

Field Detail

lockConfiguration

protected LockConfiguration lockConfiguration

Constructor Detail

ZookeeperBasedLockProvider

public ZookeeperBasedLockProvider(LockConfiguration lockConfiguration,
                                  org.apache.hadoop.conf.Configuration conf)

ZookeeperBasedLockProvider

public ZookeeperBasedLockProvider(LockConfiguration lockConfiguration,
                                  org.apache.curator.framework.CuratorFramework curatorFrameworkClient)

Method Detail

tryLock

public boolean tryLock(long time,
                       TimeUnit unit)

Specified by:

tryLock in interface Lock

unlock

public void unlock()

Specified by:

unlock in interface Lock

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface LockProvider<org.apache.curator.framework.recipes.locks.InterProcessMutex>

getLock

public org.apache.curator.framework.recipes.locks.InterProcessMutex getLock()

Specified by:

getLock in interface LockProvider<org.apache.curator.framework.recipes.locks.InterProcessMutex>

generateLogStatement

protected String generateLogStatement(LockState state,
                                      String suffix)