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From "Y. SREENIVASULU REDDY (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-9026) RestartRsHoldingRoot action in org.apache.hadoop.hbase.util.ChaosMonkey restarting the server holding .META. instead of -ROOT-
Date Tue, 23 Jul 2013 10:02:50 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Y. SREENIVASULU REDDY updated HBASE-9026:
-----------------------------------------

          Description: 
In ChaosMonkey instead of restarting Root holded regionServer it is restarting META holded
regionServer.


{code}
public static class RestartRsHoldingRoot extends RestartRandomRs {
    public RestartRsHoldingRoot(long sleepTime) {
      super(sleepTime);
    }
    @Override
    void perform() throws Exception {
      LOG.info("Performing action: Restart region server holding ROOT");
      ServerName server = cluster.getServerHoldingMeta();
      if (server == null) {
        LOG.warn("No server is holding -ROOT- right now.");
        return;
      }
      restartRs(server, sleepTime);
    }
  }
{code}

{noformat}
13/07/23 17:03:54 INFO util.ChaosMonkey: Performing action: Restart region server holding
ROOT
13/07/23 17:03:54 DEBUG client.HConnectionManager$HConnectionImplementation: Looked up root
region location, connection=org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@52b57e9a;
serverName=ocean06,60020,1374569995361
13/07/23 17:03:54 DEBUG client.HConnectionManager$HConnectionImplementation: Removed .META.,,1.1028785192
for tableName=.META. from cache because of 
13/07/23 17:03:54 DEBUG client.HConnectionManager$HConnectionImplementation: Cached location
for .META.,,1.1028785192 is ocean06:60020
13/07/23 17:03:54 INFO util.ChaosMonkey: Killing region server:ocean06,60020,1374569995361
13/07/23 17:03:54 INFO hbase.HBaseCluster: Aborting RS: ocean06,60020,1374569995361
13/07/23 17:03:54 INFO hbase.ClusterManager: Executing remote command: ps ux | grep regionserver
 | grep hbase | grep -v grep | tr -s ' ' | cut -d ' ' -f2 | xargs kill -s SIGKILL , hostname:ocean06
13/07/23 17:03:54 INFO util.Shell: Executing full command [/usr/bin/ssh  ocean06 "ps ux |
grep regionserver  | grep hbase | grep -v grep | tr -s ' ' | cut -d ' ' -f2 | xargs kill -s
SIGKILL"]
13/07/23 17:03:54 INFO hbase.ClusterManager: Executed remote command, exit code:0 , output:
13/07/23 17:03:54 INFO hbase.HBaseCluster: Waiting service:regionserver to stop: ocean06,60020,1374569995361
13/07/23 17:03:54 INFO hbase.ClusterManager: Executing remote command: ps ux | grep regionserver
 | grep hbase | grep -v grep | tr -s ' ' | cut -d ' ' -f2 , hostname:ocean06
13/07/23 17:03:54 INFO util.Shell: Executing full command [/usr/bin/ssh  ocean06 "ps ux |
grep regionserver  | grep hbase | grep -v grep | tr -s ' ' | cut -d ' ' -f2"]
13/07/23 17:03:55 INFO hbase.ClusterManager: Executed remote command, exit code:0 , output:
13/07/23 17:03:55 INFO util.ChaosMonkey: Killed region server:ocean06,60020,1374569995361.
Reported num of rs:2
{noformat}

This is only in 0.94.X
    Affects Version/s: 0.94.8
    
> RestartRsHoldingRoot action in org.apache.hadoop.hbase.util.ChaosMonkey restarting the
server holding .META. instead of -ROOT-
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-9026
>                 URL: https://issues.apache.org/jira/browse/HBASE-9026
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.8
>            Reporter: Y. SREENIVASULU REDDY
>            Priority: Minor
>
> In ChaosMonkey instead of restarting Root holded regionServer it is restarting META holded
regionServer.
> {code}
> public static class RestartRsHoldingRoot extends RestartRandomRs {
>     public RestartRsHoldingRoot(long sleepTime) {
>       super(sleepTime);
>     }
>     @Override
>     void perform() throws Exception {
>       LOG.info("Performing action: Restart region server holding ROOT");
>       ServerName server = cluster.getServerHoldingMeta();
>       if (server == null) {
>         LOG.warn("No server is holding -ROOT- right now.");
>         return;
>       }
>       restartRs(server, sleepTime);
>     }
>   }
> {code}
> {noformat}
> 13/07/23 17:03:54 INFO util.ChaosMonkey: Performing action: Restart region server holding
ROOT
> 13/07/23 17:03:54 DEBUG client.HConnectionManager$HConnectionImplementation: Looked up
root region location, connection=org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@52b57e9a;
serverName=ocean06,60020,1374569995361
> 13/07/23 17:03:54 DEBUG client.HConnectionManager$HConnectionImplementation: Removed
.META.,,1.1028785192 for tableName=.META. from cache because of 
> 13/07/23 17:03:54 DEBUG client.HConnectionManager$HConnectionImplementation: Cached location
for .META.,,1.1028785192 is ocean06:60020
> 13/07/23 17:03:54 INFO util.ChaosMonkey: Killing region server:ocean06,60020,1374569995361
> 13/07/23 17:03:54 INFO hbase.HBaseCluster: Aborting RS: ocean06,60020,1374569995361
> 13/07/23 17:03:54 INFO hbase.ClusterManager: Executing remote command: ps ux | grep regionserver
 | grep hbase | grep -v grep | tr -s ' ' | cut -d ' ' -f2 | xargs kill -s SIGKILL , hostname:ocean06
> 13/07/23 17:03:54 INFO util.Shell: Executing full command [/usr/bin/ssh  ocean06 "ps
ux | grep regionserver  | grep hbase | grep -v grep | tr -s ' ' | cut -d ' ' -f2 | xargs kill
-s SIGKILL"]
> 13/07/23 17:03:54 INFO hbase.ClusterManager: Executed remote command, exit code:0 , output:
> 13/07/23 17:03:54 INFO hbase.HBaseCluster: Waiting service:regionserver to stop: ocean06,60020,1374569995361
> 13/07/23 17:03:54 INFO hbase.ClusterManager: Executing remote command: ps ux | grep regionserver
 | grep hbase | grep -v grep | tr -s ' ' | cut -d ' ' -f2 , hostname:ocean06
> 13/07/23 17:03:54 INFO util.Shell: Executing full command [/usr/bin/ssh  ocean06 "ps
ux | grep regionserver  | grep hbase | grep -v grep | tr -s ' ' | cut -d ' ' -f2"]
> 13/07/23 17:03:55 INFO hbase.ClusterManager: Executed remote command, exit code:0 , output:
> 13/07/23 17:03:55 INFO util.ChaosMonkey: Killed region server:ocean06,60020,1374569995361.
Reported num of rs:2
> {noformat}
> This is only in 0.94.X

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