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Posted to hdfs-issues@hadoop.apache.org by "ZanderXu (Jira)" <ji...@apache.org> on 2026/05/06 03:09:00 UTC

[jira] [Resolved] (HDFS-17875) AtomicFileOutputStream should override FilterOutputStream batch write API

     [ https://issues.apache.org/jira/browse/HDFS-17875?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ZanderXu resolved HDFS-17875.
-----------------------------
    Resolution: Fixed

> AtomicFileOutputStream should override FilterOutputStream batch write API
> -------------------------------------------------------------------------
>
>                 Key: HDFS-17875
>                 URL: https://issues.apache.org/jira/browse/HDFS-17875
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Ivan Andika
>            Priority: Major
>              Labels: pull-request-available
>
> [~XiChen] found that AtomicFileOutputStream write is slow because the `write(byte b[], int off, int len)` uses FilterOutputStream implementation which calls write(byte b) for each byte. 
>  
> We should override this API and forward it to the underlying OutputStream instead.



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