hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ted Yu (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4298) Support to drain RS nodes through ZK
Date Tue, 27 Sep 2011 02:30:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13115141#comment-13115141
] 

Ted Yu commented on HBASE-4298:
-------------------------------

https://reviews.apache.org/r/2063/  for trunk and
https://reviews.apache.org/r/2064/ for 0.90
                
> Support to drain RS nodes through ZK
> ------------------------------------
>
>                 Key: HBASE-4298
>                 URL: https://issues.apache.org/jira/browse/HBASE-4298
>             Project: HBase
>          Issue Type: Improvement
>          Components: master
>    Affects Versions: 0.90.4
>         Environment: all
>            Reporter: Aravind Gottipati
>            Priority: Critical
>              Labels: patch
>             Fix For: 0.92.0, 0.90.5
>
>         Attachments: 90_hbase.patch, trunk_hbase.patch
>
>
> HDFS currently has a way to exclude certain datanodes and prevent them from getting new
blocks.  HDFS goes one step further and even drains these nodes for you.  This enhancement
is a step in that direction.
> The idea is that we mark nodes in zookeeper as draining nodes.  This means that they
don't get any more new regions.  These draining nodes look exactly the same as the corresponding
nodes in /rs, except they live under /draining.
> Eventually, support for draining them can be added.  I am submitting two patches for
review - one for the 0.90 branch and one for trunk (in git).
> Here are the two patches
> 0.90 - https://github.com/aravind/hbase/commit/181041e72e7ffe6a4da6d82b431ef7f8c99e62d2
> trunk - https://github.com/aravind/hbase/commit/e127b25ae3b4034103b185d8380f3b7267bc67d5
> I have tested both these patches and they work as advertised.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message