hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Brandon Li (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2811) HA: Client should fail if a failover occurs which switches block pool ID
Date Mon, 30 Jan 2012 19:10:10 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13196329#comment-13196329
] 

Brandon Li commented on HDFS-2811:
----------------------------------

Thanks Aaron for clarifying the issue. 

As a newbie to Hadoop, I've got a couple questions:
1. if it could happen due to wrong configuration, the client might be better off verify the
configuration the first time it gets it. If the client is not the best candidate to verify
it, which component is a better choice? 
2. suppose the config is good, is it possible that the client sees the problem later? if we
are not sure, we might still need to have the check all the time.   

                
> HA: Client should fail if a failover occurs which switches block pool ID
> ------------------------------------------------------------------------
>
>                 Key: HDFS-2811
>                 URL: https://issues.apache.org/jira/browse/HDFS-2811
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, hdfs client, name-node
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Aaron T. Myers
>            Assignee: Brandon Li
>
> Making sure that the client is talking to an NN with the same block pool ID as the one
it was previously talking to seems like a good sanity check.

--
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