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https://issues.apache.org/jira/browse/HDFS-17808?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDFS-17808:
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Labels: pull-request-available (was: )
> EC: End block group in advance to prevent write failure for long-time running
> OutputStream
> ------------------------------------------------------------------------------------------
>
> Key: HDFS-17808
> URL: https://issues.apache.org/jira/browse/HDFS-17808
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: ec, erasure-coding
> Reporter: farmmamba
> Assignee: farmmamba
> Priority: Major
> Labels: pull-request-available
>
> Recently, we met an EC problem in our production.
> User creates an output stream to write ec files. That output stream writes
> some bytes and will be idle for a long time until data is ready. If we
> restart our cluster's datanodes to version up, those applications will
> finally fail due to not have enough healthy streamers.
>
> This Jira try to solve above problem by end block group in advance when we
> already have failed streamers but less than parity number.
>
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