org.apache.tez.dag.app.launcher

Class TezLocalCacheManager

java.lang.Object

org.apache.tez.dag.app.launcher.TezLocalCacheManager

public class TezLocalCacheManager
extends Object

This class is responsible for localizing files from the distributed cache for Tez local mode.

Constructor Summary

Constructors

Constructor and Description
TezLocalCacheManager(Map<String,org.apache.hadoop.yarn.api.records.LocalResource> resources, org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method and Description
void	cleanup() Clean up any symlinks and temp files that were created.
void	localize() Localize this instance's resources by downloading and symlinking them.

Methods inherited from class java.lang.Object

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

Constructor Detail

TezLocalCacheManager

public TezLocalCacheManager(Map<String,org.apache.hadoop.yarn.api.records.LocalResource> resources,
                            org.apache.hadoop.conf.Configuration conf)
                     throws IOException

Throws:

IOException

Method Detail

localize

public void localize()
              throws IOException

Localize this instance's resources by downloading and symlinking them.

Throws:

IOException - when an error occurs in download or link

cleanup

public void cleanup()
             throws IOException

Clean up any symlinks and temp files that were created.

Throws:

IOException - when an error occurs in cleanup