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Posted to common-issues@hadoop.apache.org by "Wei-Chiu Chuang (Jira)" <ji...@apache.org> on 2024/10/01 19:39:00 UTC

[jira] [Assigned] (HADOOP-19292) BlockDecompressorStream#rawReadInt wastes about 1% of overall CPU cycles creating new EOFException

     [ https://issues.apache.org/jira/browse/HADOOP-19292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wei-Chiu Chuang reassigned HADOOP-19292:
----------------------------------------

    Assignee: Benoit Sigoure

> BlockDecompressorStream#rawReadInt wastes about 1% of overall CPU cycles creating new EOFException
> --------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-19292
>                 URL: https://issues.apache.org/jira/browse/HADOOP-19292
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: compress, io
>    Affects Versions: 3.3.6
>            Reporter: Benoit Sigoure
>            Assignee: Benoit Sigoure
>            Priority: Major
>         Attachments: HADOOP-19292-Don-t-create-new-EOFException-in-BlockD.patch
>
>
> On our HBase clusters, while looking at CPU profiles, I noticed that about 1% of overall CPU cycles are spent under BlockDecompressorStream#rawReadInt just throwing EOFException. This could be easily avoided.



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