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Posted to hdfs-dev@hadoop.apache.org by "Lukas Majercak (Jira)" <ji...@apache.org> on 2019/12/13 01:08:00 UTC

[jira] [Reopened] (HDFS-15055) Hedging clones client's buffer

     [ https://issues.apache.org/jira/browse/HDFS-15055?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lukas Majercak reopened HDFS-15055:
-----------------------------------

> Hedging clones client's buffer
> ------------------------------
>
>                 Key: HDFS-15055
>                 URL: https://issues.apache.org/jira/browse/HDFS-15055
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs-client
>    Affects Versions: 2.9.2, 3.3.0, 3.2.1, 2.9.3, 3.2.2
>            Reporter: Lukas Majercak
>            Priority: Major
>
> Currently, DFSInputStream clones the buffer passed from the caller for every request, this can have severe impact on the performance.



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