org.apache.hadoop.hbase.mapreduce.replication
Class VerifyReplication

java.lang.Object
  org.apache.hadoop.conf.Configured
      org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication

All Implemented Interfaces:

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

public class VerifyReplication
extends org.apache.hadoop.conf.Configured
implements org.apache.hadoop.util.Tool

This map-only job compares the data from a local table with a remote one. Every cell is compared and must have exactly the same keys (even timestamp) as well as same value. It is possible to restrict the job by time range and families. The peer id that's provided must match the one given when the replication stream was setup.

Two counters are provided, Verifier.Counters.GOODROWS and BADROWS. The reason for a why a row is different is shown in the map's log.

Nested Class Summary

static class

VerifyReplication.Verifier Map-only comparator for 2 tables

Field Summary

static String

NAME

Constructor Summary

VerifyReplication()

Method Summary

static org.apache.hadoop.mapreduce.Job	createSubmittableJob(org.apache.hadoop.conf.Configuration conf, String[] args) Sets up the actual job.
static void	main(String[] args) Main entry point.
int	run(String[] args)

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

Constructor Detail

VerifyReplication

public VerifyReplication()

Method Detail

createSubmittableJob

public static org.apache.hadoop.mapreduce.Job createSubmittableJob(org.apache.hadoop.conf.Configuration conf,
                                                                   String[] args)
                                                            throws IOException

Sets up the actual job.

Parameters:

conf - The current configuration.

args - The command line parameters.

Returns:

The newly created job.

Throws:

IOException - When setting up the job fails.

run

public int run(String[] args)
        throws Exception

Specified by:

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

Throws:

Exception

main

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

Main entry point.

Parameters:

args - The command line parameters.

Throws:

Exception - When running the job fails.