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https://issues.apache.org/jira/browse/HDFS-16776?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kidd5368 updated HDFS-16776:
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Summary: Erasure Coding: The length of targets should be checked when DN
gets a reconstruction task (was: Erasure Coding: The length of targets should
be checked when DN gets a reconstruction task.)
> Erasure Coding: The length of targets should be checked when DN gets a
> reconstruction task
> ------------------------------------------------------------------------------------------
>
> Key: HDFS-16776
> URL: https://issues.apache.org/jira/browse/HDFS-16776
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Kidd5368
> Assignee: Kidd5368
> Priority: Major
>
> The length of targets should be checked when DN gets a EC reconstruction
> task.For some reason (HDFS-14768, HDFS-16739) , the length of targets will be
> larger than additionalReplRequired which causes some elements in targets get
> the default value 0. It may trigger the bug which leads to the data
> corrupttion just like HDFS-14768.
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