org.apache.hudi.client.transaction.lock

Class InProcessLockProvider

java.lang.Object

org.apache.hudi.client.transaction.lock.InProcessLockProvider

All Implemented Interfaces:

Serializable, AutoCloseable, Lock, LockProvider<ReentrantReadWriteLock>

public class InProcessLockProvider
extends Object
implements LockProvider<ReentrantReadWriteLock>, Serializable

InProcess level lock. This LockProvider implementation is to guard table from concurrent operations happening in the local JVM process. A separate lock is maintained per "table basepath".

Note: This Lock provider implementation doesn't allow lock reentrancy. Attempting to reacquire the lock from the same thread will throw HoodieLockException. Threads other than the current lock owner, will block on lock() and return false on tryLock().

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
InProcessLockProvider(LockConfiguration lockConfiguration, org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method and Description
void	close()
ReentrantReadWriteLock	getLock()
void	lock()
boolean	tryLock()
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

getCurrentOwnerLockInfo, lockInterruptibly, newCondition

Constructor Detail

InProcessLockProvider

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

Method Detail

lock

public void lock()

Specified by:

lock in interface Lock

Specified by:

lock in interface LockProvider<ReentrantReadWriteLock>

tryLock

public boolean tryLock()

Specified by:

tryLock in interface Lock

Specified by:

tryLock in interface LockProvider<ReentrantReadWriteLock>

tryLock

public boolean tryLock(long time,
                       @NotNull
                       TimeUnit unit)

Specified by:

tryLock in interface Lock

unlock

public void unlock()

Specified by:

unlock in interface Lock

getLock

public ReentrantReadWriteLock getLock()

Specified by:

getLock in interface LockProvider<ReentrantReadWriteLock>

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface LockProvider<ReentrantReadWriteLock>