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Posted to dev@hbase.apache.org by "Jonathan Hsieh (JIRA)" <ji...@apache.org> on 2017/06/16 17:35:02 UTC
[jira] [Resolved] (HBASE-17996) HBase master fails to start
sometimes on RHEL7
[ https://issues.apache.org/jira/browse/HBASE-17996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Hsieh resolved HBASE-17996.
------------------------------------
Resolution: Fixed
> HBase master fails to start sometimes on RHEL7
> ----------------------------------------------
>
> Key: HBASE-17996
> URL: https://issues.apache.org/jira/browse/HBASE-17996
> Project: HBase
> Issue Type: Bug
> Components: master, test
> Reporter: David Knupp
> Attachments: hbase-jenkins-master-impala-boost-static-burst-slave-el7-02f4.vpc.cloudera.com.out, hbase-jenkins-master-impala-boost-static-burst-slave-el7-11ef.vpc.cloudera.com.out
>
>
> Impala includes HBase in its local test environment, and we have found that intermittently, the HBase master node fails to start when we are testing on RHEL7.
> In these failures, what we typically see in the logs is this:
> {noformat}
> 17/04/29 21:33:47 INFO zookeeper.ClientCnxn: Session establishment complete on server localhost/0:0:0:0:0:0:0:1:2181, sessionid = 0x15bbd21b797000a, negotiated timeout = 90000
> 17/04/29 21:33:47 INFO client.ZooKeeperRegistry: ClusterId read in ZooKeeper is null
> 17/04/29 21:33:48 INFO master.ActiveMasterManager: Deleting ZNode for /hbase/backup-masters/localhost,16000,1493526758211 from backup master directory
> {noformat}
> On a successful startup, the log looks like this:
> {noformat}
> 17/04/16 21:32:29 INFO zookeeper.ClientCnxn: Session establishment complete on server localhost/0:0:0:0:0:0:0:1:2181, sessionid = 0x15b7a2ed6860005, negotiated timeout = 90000
> 17/04/16 21:32:29 INFO client.ZooKeeperRegistry: ClusterId read in ZooKeeper is null
> 17/04/16 21:32:30 INFO util.FSUtils: Created version file at hdfs://localhost:20500/hbase with version=8
> 17/04/16 21:32:31 INFO master.MasterFileSystem: BOOTSTRAP: creating hbase:meta region
> {noformat}
> So the event that we don't see in the failed start up attempts is {{master.MasterFileSystem: BOOTSTRAP: creating hbase:meta region}}.
> The full logs will be attached.
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