hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-1125) Removing a datanode (failed or decommissioned) should not require a namenode restart
Date Tue, 03 Jul 2012 12:45:20 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Harsh J resolved HDFS-1125.
---------------------------

    Resolution: Duplicate

Resolved via HDFS-1773. It was in the version after the one Allen tried above I think, thats
why he may not have seen it? Please reopen if not.
                
> Removing a datanode (failed or decommissioned) should not require a namenode restart
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-1125
>                 URL: https://issues.apache.org/jira/browse/HDFS-1125
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>    Affects Versions: 0.20.2
>            Reporter: Alex Loddengaard
>            Priority: Blocker
>
> I've heard of several Hadoop users using dfsadmin -report to monitor the number of dead
nodes, and alert if that number is not 0.  This mechanism tends to work pretty well, except
when a node is decommissioned or fails, because then the namenode requires a restart for said
node to be entirely removed from HDFS.  More details here:
> http://markmail.org/search/?q=decommissioned%20node%20showing%20up%20ad%20dead%20node%20in%20web%20based%09interface%20to%20namenode#query:decommissioned%20node%20showing%20up%20ad%20dead%20node%20in%20web%20based%09interface%20to%20namenode+page:1+mid:7gwqwdkobgfuszb4+state:results
> Removal from the exclude file and a refresh should get rid of the dead node.

--
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