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Posted to hdfs-issues@hadoop.apache.org by "Uma Maheswara Rao G (JIRA)" <ji...@apache.org> on 2016/12/30 23:20:58 UTC
[jira] [Commented] (HDFS-11284) [SPS]: Avoid running SPS under
safemode and fix issues in target node choosing.
[ https://issues.apache.org/jira/browse/HDFS-11284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15788537#comment-15788537 ]
Uma Maheswara Rao G commented on HDFS-11284:
--------------------------------------------
[~yuanbo], Thank you for raising the JIRA. Can you provide more details on #2 and #3 ?
> [SPS]: Avoid running SPS under safemode and fix issues in target node choosing.
> -------------------------------------------------------------------------------
>
> Key: HDFS-11284
> URL: https://issues.apache.org/jira/browse/HDFS-11284
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode, namenode
> Reporter: Yuanbo Liu
> Assignee: Yuanbo Liu
>
> Recently I've found in some conditions, SPS is not stable:
> * SPS runs under safe mode.
> * There're some overlap nodes in the chosen target nodes.
> * The real replication number of block doesn't match the replication factor. For example, the real replication is 2 while the replication factor is 3.
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