hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HBASE-7715) FSUtils#waitOnSafeMode can incorrectly loop on standby NN
Date Wed, 30 Jan 2013 00:51:13 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7715?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Wang reassigned HBASE-7715:
----------------------------------

    Assignee:     (was: Andrew Wang)
    
> FSUtils#waitOnSafeMode can incorrectly loop on standby NN
> ---------------------------------------------------------
>
>                 Key: HBASE-7715
>                 URL: https://issues.apache.org/jira/browse/HBASE-7715
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.4
>            Reporter: Andrew Wang
>
> We encountered an issue where HMaster failed to start with an active NN not in safe mode
and a standby NN in safemode. The relevant lines in {{FSUtils.java}} show the issue:
> {noformat}
>     while (dfs.setSafeMode(org.apache.hadoop.hdfs.protocol.FSConstants.SafeModeAction.SAFEMODE_GET))
{
> {noformat}
> This call skips the normal client failover from the standby to active NN, so it will
loop polling the standby NN if it unfortunately talks to the standby first.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message