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https://issues.apache.org/jira/browse/HDFS-16423?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liubingxing updated HDFS-16423:
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Attachment: image-2022-01-13-17-18-32-409.png
> balancer should not get blocks on stale storages
> ------------------------------------------------
>
> Key: HDFS-16423
> URL: https://issues.apache.org/jira/browse/HDFS-16423
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: balancer & mover
> Reporter: liubingxing
> Priority: Major
> Attachments: image-2022-01-13-17-18-32-409.png
>
>
> We have met a problems as described in HDFS-16420
> We found that balancer copied a block multi times without deleting the source
> block if this block was placed in a stale storage. And resulting a block with
> many copies, but these redundant copies are not deleted until the storage
> become not stale.
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