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https://issues.apache.org/jira/browse/HDFS-10913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15527831#comment-15527831
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Xiaobing Zhou commented on HDFS-10913:
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I posted patch v000, please kindly review.
> Refactor BlockReceiver by introducing faults injector to enhance testability
> of detecting slow mirrors
> ------------------------------------------------------------------------------------------------------
>
> Key: HDFS-10913
> URL: https://issues.apache.org/jira/browse/HDFS-10913
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 2.8.0
> Reporter: Xiaobing Zhou
> Assignee: Xiaobing Zhou
> Attachments: HDFS-10913.000.patch
>
>
> BlockReceiver#datanodeSlowLogThresholdMs is used as threshold to detect slow
> mirrors. BlockReceiver only writes some warning logs. In order to better test
> behaviors of slow mirrors, it necessitates introducing fault injectors.
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