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https://issues.apache.org/jira/browse/HDFS-7864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14374823#comment-14374823
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GAO Rui commented on HDFS-7864:
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[~jingzhao] Thank you very much. And .4 patch looks good to me. BTW, "condition
? result1 : result 2" code style is awesome! I will try to create a separate
Jira for unit tests of safe mode calculation, too.
> Erasure Coding: Update safemode calculation for striped blocks
> --------------------------------------------------------------
>
> Key: HDFS-7864
> URL: https://issues.apache.org/jira/browse/HDFS-7864
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Jing Zhao
> Assignee: GAO Rui
> Attachments: HDFS-7864.1.patch, HDFS-7864.2.patch, HDFS-7864.3.patch,
> HDFS-7864.4.patch
>
>
> We need to update the safemode calculation for striped blocks. Specifically,
> each striped block now consists of multiple data/parity blocks stored in
> corresponding DataNodes. The current code's calculation is thus inconsistent:
> each striped block is only counted as 1 expected block, while each of its
> member block may increase the number of received blocks by 1.
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