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From "Vladimir Rodionov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15506) FSDataOutputStream.write() allocates new byte buffer on each operation
Date Mon, 28 Mar 2016 16:10:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15214385#comment-15214385
] 

Vladimir Rodionov commented on HBASE-15506:
-------------------------------------------

[~lhofhansl]

Yes, this JIRA is for enabling HDFS-7276, by default. 

As for why we need to decrease garbage allocation ... this affects latency and server stability
in a long term (with high memory allocation rate chances you get eventually full GC is much
higher).




> FSDataOutputStream.write() allocates new byte buffer on each operation
> ----------------------------------------------------------------------
>
>                 Key: HBASE-15506
>                 URL: https://issues.apache.org/jira/browse/HBASE-15506
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>
> Deep inside stack trace in DFSOutputStream.createPacket.
> This should be opened in HDFS. This JIRA is to track HDFS work.



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