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https://issues.apache.org/jira/browse/HDDS-8421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-8421:
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Labels: pull-request-available (was: )
> Reduce DN IO times when writeChunk (FilePerBlockStrategy)
> ---------------------------------------------------------
>
> Key: HDDS-8421
> URL: https://issues.apache.org/jira/browse/HDDS-8421
> Project: Apache Ozone
> Issue Type: Improvement
> Components: Ozone Datanode
> Reporter: ChenXi
> Assignee: ChenXi
> Priority: Major
> Labels: pull-request-available
>
> In the FilePerBlockStrategy#writeChunk will generate twice IO process.
> - The first is to check whether the write operation is an overwrite, will
> check whether the chunk file is exist (ChunkUtils#verifyChunkFileExists).
> - The second is write Chunk, will open file and write file.
> Those two IO operation can merge to once. just need to check whether is
> overwrite after open file and before write Chunk
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