[jira] [Updated] (HDFS-7276) Limit the number of byte arrays used by DFSOutputStream

["Tsz Wo Nicholas Sze (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-7276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz Wo Nicholas Sze updated HDFS-7276:
--------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.6.0
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

Thanks Jing and Colin for reviewing the patches.

I have committed this.

> Limit the number of byte arrays used by DFSOutputStream
> -------------------------------------------------------
>
>                 Key: HDFS-7276
>                 URL: https://issues.apache.org/jira/browse/HDFS-7276
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs-client
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>             Fix For: 2.6.0
>
>         Attachments: h7276_20141021.patch, h7276_20141022.patch, h7276_20141023.patch, h7276_20141024.patch, h7276_20141027.patch, h7276_20141027b.patch, h7276_20141028.patch, h7276_20141029.patch, h7276_20141029b.patch, h7276_20141030.patch, h7276_20141031.patch
>
>
> When there are a lot of DFSOutputStream's writing concurrently, the number of outstanding packets could be large.  The byte arrays created by those packets could occupy a lot of memory.



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