org.apache.hadoop.hbase.chaos.actions

Class RollingBatchRestartRsAction

java.lang.Object

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

org.apache.hadoop.hbase.chaos.actions.RestartActionBaseAction

org.apache.hadoop.hbase.chaos.actions.BatchRestartRsAction

org.apache.hadoop.hbase.chaos.actions.RollingBatchRestartRsAction

Direct Known Subclasses:

RollingBatchRestartRsExceptMetaAction

public class RollingBatchRestartRsAction
extends BatchRestartRsAction

Restarts a ratio of the regionservers in a rolling fashion. At each step, either kills a server, or starts one, sleeping randomly (0-sleepTime) in between steps. The parameter maxDeadServers limits the maximum number of servers that can be down at the same time during rolling restarts.

Nested Class Summary

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

Action.ActionContext

Field Summary

Fields

Modifier and Type	Field and Description
protected int	maxDeadServers

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, START_MASTER_TIMEOUT_DEFAULT, START_MASTER_TIMEOUT_KEY, START_RS_TIMEOUT_DEFAULT, START_RS_TIMEOUT_KEY, startMasterTimeout, startRsTimeout

Constructor Summary

Constructors

Constructor and Description
RollingBatchRestartRsAction(long sleepTime, float ratio)
RollingBatchRestartRsAction(long sleepTime, float ratio, int maxDeadServers)

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args) Small test to ensure the class basically works.
void	perform()
protected List<ServerName>	selectServers()

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

Field Detail

maxDeadServers

protected int maxDeadServers

Constructor Detail

RollingBatchRestartRsAction

public RollingBatchRestartRsAction(long sleepTime,
                                   float ratio)

RollingBatchRestartRsAction

public RollingBatchRestartRsAction(long sleepTime,
                                   float ratio,
                                   int maxDeadServers)

Method Detail

perform

public void perform()
             throws Exception

Overrides:

perform in class BatchRestartRsAction

Throws:

Exception

selectServers

protected List<ServerName> selectServers()
                                  throws IOException

Throws:

IOException

main

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

Small test to ensure the class basically works.

Parameters:

args -

Throws:

Exception