io.delta.storage.internal

Class PathLock

Object

io.delta.storage.internal.PathLock

public class PathLock
extends Object

A lock that provides per-file-path `acquire` and `release` semantics. Can be used to ensure that no two writers are creating the same external (e.g. S3) file at the same time.

Note: For all APIs, the caller should resolve the path to make sure we are locking the correct absolute path.

Constructor Summary

Constructors

Constructor and Description
PathLock()

Method Summary

Modifier and Type	Method and Description
void	acquire(org.apache.hadoop.fs.Path resolvedPath) Acquire a lock for the path before writing.
void	release(org.apache.hadoop.fs.Path resolvedPath) Release the lock for the path after writing.

Methods inherited from class Object

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

Constructor Detail

PathLock

public PathLock()

Method Detail

release

public void release(org.apache.hadoop.fs.Path resolvedPath)

Release the lock for the path after writing.

acquire

public void acquire(org.apache.hadoop.fs.Path resolvedPath)
             throws InterruptedException

Acquire a lock for the path before writing.

Throws:

InterruptedException