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https://issues.apache.org/jira/browse/HDDS-13400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDDS-13400:
-----------------------------------
Release Note: Fixed unbounded EC buffer caching in the Ozone client that
could grow S3 Gateway memory over time. RpcClient now uses a bounded buffer
pool (configurable via ozone.client.elastic.byte.buffer.pool.max.size, default
16GB).
> S3g has accumulated memory pressure due to unlimited ElasticByteBufferPool in
> RpcClient
> ---------------------------------------------------------------------------------------
>
> Key: HDDS-13400
> URL: https://issues.apache.org/jira/browse/HDDS-13400
> Project: Apache Ozone
> Issue Type: Bug
> Components: Ozone Client, s3gateway
> Reporter: Sammi Chen
> Assignee: Gargi Jaiswal
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.2.0
>
>
> The issue is reported by Hao Guo.
> Currently RpcClient has a ElasticByteBufferPool to reuse buffers during EC
> data read and write. ElasticByteBufferPool can save the time of buffer
> allocation. While this Pool doesn't have a upper limit, so in s3g case, a
> long lived RpcClient will accumulate all buffers allocated through this pool,
> which lead to high memory pressure of s3g.
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