org.apache.hadoop.hbase.snapshot
Class ExportSnapshot

java.lang.Object
  org.apache.hadoop.conf.Configured
      org.apache.hadoop.hbase.snapshot.ExportSnapshot

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class ExportSnapshot
extends org.apache.hadoop.conf.Configured
implements org.apache.hadoop.util.Tool

Export the specified snapshot to a given FileSystem. The .snapshot/name folder is copied to the destination cluster and then all the hfiles/hlogs are copied using a Map-Reduce Job in the .archive/ location. When everything is done, the second cluster can restore the snapshot.

Nested Class Summary

static class

ExportSnapshot.Counter

Field Summary

static String	CONF_DEST_PREFIX Configuration prefix for overrides for the destination filesystem
protected static String	CONF_SKIP_TMP
static String	CONF_SOURCE_PREFIX Configuration prefix for overrides for the source filesystem
static String	NAME

Constructor Summary

ExportSnapshot()

Method Summary

static void	main(String[] args)
int	run(String[] args) Execute the export snapshot by copying the snapshot metadata, hfiles and hlogs.

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

CONF_SOURCE_PREFIX

public static final String CONF_SOURCE_PREFIX

Configuration prefix for overrides for the source filesystem

See Also:

Constant Field Values

CONF_DEST_PREFIX

public static final String CONF_DEST_PREFIX

Configuration prefix for overrides for the destination filesystem

See Also:

Constant Field Values

CONF_SKIP_TMP

protected static final String CONF_SKIP_TMP

See Also:

Constant Field Values

Constructor Detail

ExportSnapshot

public ExportSnapshot()

Method Detail

run

public int run(String[] args)
        throws IOException

Execute the export snapshot by copying the snapshot metadata, hfiles and hlogs.

Specified by:

run in interface org.apache.hadoop.util.Tool

Returns:

0 on success, and != 0 upon failure.

Throws:

IOException

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception