org.apache.hadoop.hbase.chaos.actions

Class UnbalanceRegionsAction

java.lang.Object

org.apache.hadoop.hbase.chaos.actions.Action

org.apache.hadoop.hbase.chaos.actions.UnbalanceRegionsAction

public class UnbalanceRegionsAction
extends Action

Action that tries to unbalance the regions of a cluster.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.chaos.actions.Action

Action.ActionContext

Field Summary

Fields inherited from class org.apache.hadoop.hbase.chaos.actions.Action

cluster, context, initialServers, initialStatus, KILL_MASTER_TIMEOUT_DEFAULT, KILL_MASTER_TIMEOUT_KEY, KILL_RS_TIMEOUT_DEFAULT, KILL_RS_TIMEOUT_KEY, killMasterTimeout, killRsTimeout, LOG, START_MASTER_TIMEOUT_DEFAULT, START_MASTER_TIMEOUT_KEY, START_RS_TIMEOUT_DEFAULT, START_RS_TIMEOUT_KEY, startMasterTimeout, startRsTimeout

Constructor Summary

Constructors

Constructor and Description
UnbalanceRegionsAction(double fractionOfRegions, double fractionOfServers) Unbalances the regions on the cluster by choosing "target" servers, and moving some regions from each of the non-target servers to random target servers.

Method Summary

Modifier and Type	Method and Description
void	perform()

Methods inherited from class org.apache.hadoop.hbase.chaos.actions.Action

forceBalancer, getCurrentServers, init, killMaster, killRs, startMaster, startRs, unbalanceRegions

Methods inherited from class java.lang.Object

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

Constructor Detail

UnbalanceRegionsAction

public UnbalanceRegionsAction(double fractionOfRegions,
                              double fractionOfServers)

Unbalances the regions on the cluster by choosing "target" servers, and moving some regions from each of the non-target servers to random target servers.

Parameters:

fractionOfRegions - Fraction of regions to move from each server.

fractionOfServers - Fraction of servers to be chosen as targets.

Method Detail

perform

public void perform()
             throws java.lang.Exception

Overrides:

perform in class Action

Throws:

java.lang.Exception