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https://issues.apache.org/jira/browse/HDFS-17670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eungsop Yoo updated HDFS-17670:
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Attachment: (was: image-2025-02-17-13-58-05-616.png)
> HDFS Client's direct memory leaks with erasure coding enabled
> -------------------------------------------------------------
>
> Key: HDFS-17670
> URL: https://issues.apache.org/jira/browse/HDFS-17670
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: erasure-coding
> Reporter: Eungsop Yoo
> Priority: Major
> Labels: pull-request-available
> Attachments: image-2024-11-18-13-53-23-690.png
>
>
> We are testing erasure coding with HBase. But we faced that the size of
> direct memory of HBase RegionServer keep growing.
> !image-2024-11-18-13-53-23-690.png!
> It is caused by that the direct memory allocated by ElasticByteBufferPool of
> HDFS client is never released.
> https://issues.apache.org/jira/browse/HADOOP-18105
> We found that we already have the solution,
> WeakReferencedElasticByteBufferPool.
> Just replace ElasticByteBufferPool with WeakReferencedElasticByteBufferPool.
>
>
> PS. I applied this patch to my production HBase cluster using EC.
> !image-2025-02-17-13-58-05-616.png!
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