org.apache.hadoop.hbase.mapreduce.replication

Class VerifyReplication

java.lang.Object

Configured

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

public class VerifyReplication
extends Configured

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

Nested Classes

Modifier and Type	Class and Description
static class	VerifyReplication.Verifier Map-only comparator for 2 tables

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	NAME

Constructor Summary

Constructors

Constructor and Description
VerifyReplication()

Method Summary

Modifier and Type	Method and Description
static Job	createSubmittableJob(Configuration conf, java.lang.String[] args) Sets up the actual job.
static void	main(java.lang.String[] args) Main entry point.
int	run(java.lang.String[] args)

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final java.lang.String NAME

See Also:

Constant Field Values

Constructor Detail

VerifyReplication

public VerifyReplication()

Method Detail

createSubmittableJob

public static Job createSubmittableJob(Configuration conf,
                                       java.lang.String[] args)
                                throws java.io.IOException

Sets up the actual job.

Parameters:

conf - The current configuration.

args - The command line parameters.

Returns:

The newly created job.

Throws:

java.io.IOException - When setting up the job fails.

run

public int run(java.lang.String[] args)
        throws java.lang.Exception

Throws:

java.lang.Exception

main

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

Main entry point.

Parameters:

args - The command line parameters.

Throws:

java.lang.Exception - When running the job fails.