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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9494) Parallel optimization of DFSStripedOutputStream#flushAllInternals( )
Date Fri, 11 Dec 2015 16:33:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15052979#comment-15052979
] 

Hadoop QA commented on HDFS-9494:
---------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s {color} | {color:blue}
Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s {color} | {color:green}
The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m 0s {color} | {color:red}
The patch doesn't appear to include any new or modified tests. Please justify why no new tests
are needed for this patch. Also please list what manual steps were performed to verify this
patch. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 9m 20s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 38s {color} |
{color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 34s {color} |
{color:green} trunk passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 14s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 41s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 14s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 28s {color} |
{color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 30s {color} |
{color:green} trunk passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 40s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 37s {color} |
{color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 4m 31s {color} | {color:red}
hadoop-hdfs-project_hadoop-hdfs-client-jdk1.8.0_66 with JDK v1.8.0_66 generated 1 new issues
(was 14, now 14). {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 37s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 33s {color} |
{color:green} the patch passed with JDK v1.7.0_91 {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 5m 4s {color} | {color:red}
hadoop-hdfs-project_hadoop-hdfs-client-jdk1.7.0_91 with JDK v1.7.0_91 generated 1 new issues
(was 14, now 14). {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 33s {color} | {color:green}
the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 13s {color} | {color:red}
Patch generated 3 new checkstyle issues in hadoop-hdfs-project/hadoop-hdfs-client (total was
8, now 11). {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 40s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s {color}
| {color:green} Patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 26s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 26s {color} |
{color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 30s {color} |
{color:green} the patch passed with JDK v1.7.0_91 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 9s {color} | {color:green}
hadoop-hdfs-client in the patch passed with JDK v1.8.0_66. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 7s {color} | {color:green}
hadoop-hdfs-client in the patch passed with JDK v1.7.0_91. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 27s {color}
| {color:green} Patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 27m 6s {color} | {color:black}
{color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:0ca8df7 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12777020/HDFS-9494-origin-trunk.00.patch
|
| JIRA Issue | HDFS-9494 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux 1a02833be62a 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / a483017 |
| findbugs | v3.0.0 |
| javac | hadoop-hdfs-project_hadoop-hdfs-client-jdk1.8.0_66: https://builds.apache.org/job/PreCommit-HDFS-Build/13831/artifact/patchprocess/diff-compile-javac-hadoop-hdfs-project_hadoop-hdfs-client-jdk1.8.0_66.txt
|
| javac | hadoop-hdfs-project_hadoop-hdfs-client-jdk1.7.0_91: https://builds.apache.org/job/PreCommit-HDFS-Build/13831/artifact/patchprocess/diff-compile-javac-hadoop-hdfs-project_hadoop-hdfs-client-jdk1.7.0_91.txt
|
| checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/13831/artifact/patchprocess/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs-client.txt
|
| JDK v1.7.0_91  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/13831/testReport/
|
| modules | C: hadoop-hdfs-project/hadoop-hdfs-client U: hadoop-hdfs-project/hadoop-hdfs-client
|
| Max memory used | 76MB |
| Powered by | Apache Yetus 0.1.0-SNAPSHOT   http://yetus.apache.org |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/13831/console |


This message was automatically generated.



> Parallel optimization of DFSStripedOutputStream#flushAllInternals( )
> --------------------------------------------------------------------
>
>                 Key: HDFS-9494
>                 URL: https://issues.apache.org/jira/browse/HDFS-9494
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: GAO Rui
>            Assignee: GAO Rui
>            Priority: Minor
>         Attachments: HDFS-9494-origin-trunk.00.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.



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