hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ming Ma (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-4446) Rolling restart RS, region could stay in OPENING state
Date Mon, 19 Sep 2011 23:23:09 GMT
Rolling restart RS, region could stay in OPENING state
------------------------------------------------------

                 Key: HBASE-4446
                 URL: https://issues.apache.org/jira/browse/HBASE-4446
             Project: HBase
          Issue Type: Bug
          Components: master
            Reporter: Ming Ma
            Assignee: Ming Ma


Keep Master up all the time, do rolling restart of RSs like this - stop RS1, wait for 2 seconds,
stop RS2, start RS1, wait for 2 seconds, stop RS3, start RS2, wait for 2 seconds, etc. Region
sometimes can just stay in OPENING state even after timeoutmonitor period.


2011-09-19 08:10:33,131 WARN org.apache.hadoop.hbase.master.AssignmentManager: While timing
out a region in state OPENING, found ZK node in unexpected state: RS_ZK_REGION_FAILED_OPEN

The issue - RS was shutdown when a region is being opened, it was transitioned to RS_ZK_REGION_FAILED_OPEN
in ZK. In timeoutmonitor, it didn't take care of RS_ZK_REGION_FAILED_OPEN.

processOpeningState
...
   else if (dataInZNode.getEventType() != EventType.RS_ZK_REGION_OPENING &&
        LOG.warn("While timing out a region in state OPENING, "
            + "found ZK node in unexpected state: "
            + dataInZNode.getEventType());
        return;
      }



--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message