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https://issues.apache.org/jira/browse/HDFS-11284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15796898#comment-15796898
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Yuanbo Liu commented on HDFS-11284:
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[~umamaheswararao] Thanks for your response.
{code}
When DN send movement result as failure, NN will take care to retry
{code}
Thanks for pointing out this, I'll go through those code and understand the
retry mechanism.
{code}
Any way, go ahead with HDFS-11150 please. There were some test failure related
to that, can you please check?
{code}
Yes, I'm working on this patch now. I also find another issue that makes me
refactor part code of {{StoragePolicySatisfier#computeBlockMovingInfos}}. I'll
elaborate it in the JIRA conversation.
The major part of persistence code has been finished for a while, but the
restart testing helps me find some issues that need to be addressed, so
basically my work now is related to make test cases stable.
> [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
> Attachments: TestSatisfier.java
>
>
> 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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