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Posted to issues@ozone.apache.org by "Hanisha Koneru (Jira)" <ji...@apache.org> on 2021/04/01 17:19:00 UTC
[jira] [Resolved] (HDDS-4553) ChunkInputStream should release
buffer as soon as last byte in the buffer is read
[ https://issues.apache.org/jira/browse/HDDS-4553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hanisha Koneru resolved HDDS-4553.
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Fix Version/s: 1.2.0
Resolution: Fixed
> ChunkInputStream should release buffer as soon as last byte in the buffer is read
> ---------------------------------------------------------------------------------
>
> Key: HDDS-4553
> URL: https://issues.apache.org/jira/browse/HDDS-4553
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Shashikant Banerjee
> Assignee: Hanisha Koneru
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.2.0
>
>
> We currently wait for reading up till the Chunk EOF before releasing the buffers in ChunkInputStream (or when the stream is closed). Let's say a client reads first 3 MB of a chunk of size 4MB and does not close the stream immediately. This would lead to the 3MB of data being cached in the ChunkInputStream buffers till the stream is closed.
> Once HDDS-4552 is resolved, a chunk read from DN would return the chunk data as an array of ByteBuffers. After each ByteBuffer is read, it can be released. This would greatly help with optimizing memory usage of ChunkInputStream.
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