[
https://issues.apache.org/jira/browse/HDFS-9494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15127070#comment-15127070
]
Hudson commented on HDFS-9494:
------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #9217 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/9217/])
HDFS-9494. Parallel optimization of (jing9: rev
e30ce01ddce1cfd1e9d49c4784eb4a6bc87e36ca)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSStripedOutputStream.java
*
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSOutputStream.java
> Parallel optimization of DFSStripedOutputStream#flushAllInternals( )
> --------------------------------------------------------------------
>
> Key: HDFS-9494
> URL: https://issues.apache.org/jira/browse/HDFS-9494
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: GAO Rui
> Assignee: GAO Rui
> Priority: Minor
> Fix For: 3.0.0
>
> Attachments: HDFS-9494-origin-trunk.00.patch,
> HDFS-9494-origin-trunk.01.patch, HDFS-9494-origin-trunk.02.patch,
> HDFS-9494-origin-trunk.03.patch, HDFS-9494-origin-trunk.04.patch,
> HDFS-9494-origin-trunk.05.patch, HDFS-9494-origin-trunk.06.patch,
> HDFS-9494-origin-trunk.07.patch, HDFS-9494-origin-trunk.08.patch,
> HDFS-9494-origin-trunk.08_testing.patch, HDFS-9494.08.patch
>
>
> Currently, in DFSStripedOutputStream#flushAllInternals( ), we trigger and
> wait for flushInternal( ) in sequence. So the runtime flow is like:
> {code}
> Streamer0#flushInternal( )
> Streamer0#waitForAckedSeqno( )
> Streamer1#flushInternal( )
> Streamer1#waitForAckedSeqno( )
> …
> Streamer8#flushInternal( )
> Streamer8#waitForAckedSeqno( )
> {code}
> It could be better to trigger all the streamers to flushInternal( ) and
> wait for all of them to return from waitForAckedSeqno( ), and then
> flushAllInternals( ) returns.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
