hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-2611) Handle RS that fails while processing the failure of another one
Date Wed, 16 Jan 2013 06:30:18 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13554789#comment-13554789
] 

Lars Hofhansl commented on HBASE-2611:
--------------------------------------

Yeah, I don't know.

But what can happen is that the region server who wins the race to take over the dead region
server's queues could die before it even manages to call multi. In the case - since the ephemeral
znode is only removed once - we won't ever retry to move that region server's queues again.
Right?
So another part of the puzzle is to have a way to retry the takeover later. Back in the comments
here there are various suggestions about how to do that mostly centering around having all
surviving RSs try to move a dead RS's queues.

                
> Handle RS that fails while processing the failure of another one
> ----------------------------------------------------------------
>
>                 Key: HBASE-2611
>                 URL: https://issues.apache.org/jira/browse/HBASE-2611
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Replication
>            Reporter: Jean-Daniel Cryans
>            Assignee: Himanshu Vashishtha
>             Fix For: 0.94.5
>
>         Attachments: HBase-2611-upstream-v1.patch, HBASE-2611-v2.patch
>
>
> HBASE-2223 doesn't manage region servers that fail while doing the transfer of HLogs
queues from other region servers that failed. Devise a reliable way to do it.

--
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