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Posted to hdfs-issues@hadoop.apache.org by "Uma Maheswara Rao G (JIRA)" <ji...@apache.org> on 2016/11/08 03:26:58 UTC
[jira] [Updated] (HDFS-11029) [SPS]:Provide retry mechanism for the
blocks which were failed while moving its storage at DNs
[ https://issues.apache.org/jira/browse/HDFS-11029?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Uma Maheswara Rao G updated HDFS-11029:
---------------------------------------
Attachment: HDFS-11029-HDFS-10285-00.patch
Attached initial patch for this work. Please review.
> [SPS]:Provide retry mechanism for the blocks which were failed while moving its storage at DNs
> ----------------------------------------------------------------------------------------------
>
> Key: HDFS-11029
> URL: https://issues.apache.org/jira/browse/HDFS-11029
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Affects Versions: HDFS-10285
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
> Attachments: HDFS-11029-HDFS-10285-00.patch
>
>
> When DN co-ordinator finds some of blocks associated to trackedID could not be moved its storages, due to some errors.Here retry may work in some cases, example if target node has no space. Then retry by finding another target can work.
> So, based on the movement result flag(SUCCESS/FAILURE) from DN Co-ordinator, NN would retry by scanning the blocks again.
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