Package org.apache.hadoop.hbase.master.balancer

Class LoadBalancerPerformanceEvaluation

java.lang.Object

org.apache.hadoop.hbase.util.AbstractHBaseTool

org.apache.hadoop.hbase.master.balancer.LoadBalancerPerformanceEvaluation

All Implemented Interfaces:

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

@LimitedPrivate("Tools")
public class LoadBalancerPerformanceEvaluation
extends AbstractHBaseTool

Tool to test performance of different LoadBalancer implementations. Example command: $ bin/hbase org.apache.hadoop.hbase.master.balancer.LoadBalancerPerformanceEvaluation -regions 1000 -servers 100 -load_balancer org.apache.hadoop.hbase.master.balancer.SimpleLoadBalancer

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.util.AbstractHBaseTool

AbstractHBaseTool.OptionsOrderComparator

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	DEFAULT_LOAD_BALANCER
private static final int	DEFAULT_NUM_REGIONS
private static final int	DEFAULT_NUM_SERVERS
private static org.apache.hbase.thirdparty.org.apache.commons.cli.Option	LOAD_BALANCER_OPT
private LoadBalancer	loadBalancer
private Class<?>	loadBalancerClazz
private String	loadBalancerType
private static final org.slf4j.Logger	LOG
private static org.apache.hbase.thirdparty.org.apache.commons.cli.Option	NUM_REGIONS_OPT
private static org.apache.hbase.thirdparty.org.apache.commons.cli.Option	NUM_SERVERS_OPT
private int	numRegions
private int	numServers
private List<RegionInfo>	regions
private Map<RegionInfo,ServerName>	regionServerMap
private List<ServerName>	servers
private Map<TableName,Map<ServerName,List<RegionInfo>>>	tableServerRegionMap

Fields inherited from class org.apache.hadoop.hbase.util.AbstractHBaseTool

cmdLineArgs, conf, EXIT_FAILURE, EXIT_SUCCESS, LONG_HELP_OPTION, options, SHORT_HELP_OPTION

Constructor Summary

Constructors

Constructor	Description
LoadBalancerPerformanceEvaluation()

Method Summary

Modifier and Type	Method	Description
protected void	addOptions()	Override this to add command-line options using AbstractHBaseTool.addOptWithArg(java.lang.String, java.lang.String) and similar methods.
protected int	doWork()	The "main function" of the tool
private String	formatResults(String methodName, long timeMillis)
private void	generateRegionsAndServers()
static void	main(String[] args)
protected void	processOptions(org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine cmd)	This method is called to process the options after they have been parsed.
private void	setupConf()

Methods inherited from class org.apache.hadoop.hbase.util.AbstractHBaseTool

addOption, addOptNoArg, addOptNoArg, addOptWithArg, addOptWithArg, addRequiredOption, addRequiredOptWithArg, addRequiredOptWithArg, doStaticMain, getConf, getOptionAsDouble, getOptionAsInt, getOptionAsInt, getOptionAsLong, getOptionAsLong, newParser, parseArgs, parseInt, parseLong, printUsage, printUsage, processOldArgs, run, setConf

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.slf4j.Logger LOG

DEFAULT_NUM_REGIONS

private static final int DEFAULT_NUM_REGIONS

See Also:

• Constant Field Values

NUM_REGIONS_OPT

private static org.apache.hbase.thirdparty.org.apache.commons.cli.Option NUM_REGIONS_OPT

DEFAULT_NUM_SERVERS

private static final int DEFAULT_NUM_SERVERS

See Also:

• Constant Field Values

NUM_SERVERS_OPT

private static org.apache.hbase.thirdparty.org.apache.commons.cli.Option NUM_SERVERS_OPT

DEFAULT_LOAD_BALANCER

private static final String DEFAULT_LOAD_BALANCER

See Also:

• Constant Field Values

LOAD_BALANCER_OPT

private static org.apache.hbase.thirdparty.org.apache.commons.cli.Option LOAD_BALANCER_OPT

numRegions

private int numRegions

numServers

private int numServers

loadBalancerType

private String loadBalancerType

loadBalancerClazz

private Class<?> loadBalancerClazz

loadBalancer

private LoadBalancer loadBalancer

servers

private List<ServerName> servers

regions

private List<RegionInfo> regions

regionServerMap

private Map<RegionInfo,ServerName> regionServerMap

tableServerRegionMap

private Map<TableName,Map<ServerName,List<RegionInfo>>> tableServerRegionMap

Constructor Details

LoadBalancerPerformanceEvaluation

public LoadBalancerPerformanceEvaluation()

Method Details

setupConf

private void setupConf()

generateRegionsAndServers

private void generateRegionsAndServers()

addOptions

protected void addOptions()

Description copied from class: AbstractHBaseTool

Override this to add command-line options using AbstractHBaseTool.addOptWithArg(java.lang.String, java.lang.String) and similar methods.

Specified by:

addOptions in class AbstractHBaseTool

processOptions

protected void processOptions(org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine cmd)

Description copied from class: AbstractHBaseTool

This method is called to process the options after they have been parsed.

Specified by:

processOptions in class AbstractHBaseTool

formatResults

private String formatResults(String methodName,
 long timeMillis)

doWork

protected int doWork()
              throws Exception

Description copied from class: AbstractHBaseTool

The "main function" of the tool

Specified by:

doWork in class AbstractHBaseTool

Throws:

Exception

main

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

Throws:

IOException