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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8287) DFSStripedOutputStream.writeChunk should not wait for writing parity
Date Fri, 16 Oct 2015 09:41:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14960427#comment-14960427
] 

Hadoop QA commented on HDFS-8287:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  27m 12s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:red}-1{color} | tests included |   0m  0s | 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:red}-1{color} | javac |  10m 54s | The applied patch generated  1  additional warning
messages. |
| {color:red}-1{color} | javadoc |  12m 20s | The applied patch generated  2  additional warning
messages. |
| {color:green}+1{color} | release audit |   0m 30s | The applied patch does not increase
the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle |   1m 56s | The applied patch generated  3 new checkstyle
issues (total was 8, now 11). |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 43s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 37s | The patch built with eclipse:eclipse.
|
| {color:red}-1{color} | findbugs |   2m 17s | The patch appears to introduce 1 new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | native |   3m 31s | Pre-build of native portion |
| {color:green}+1{color} | hdfs tests |   0m 31s | Tests passed in hadoop-hdfs-client. |
| | |  61m 35s | |
\\
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|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs-client |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12767016/HDFS-8287.12.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / cf23f2c |
| javac | https://builds.apache.org/job/PreCommit-HDFS-Build/13027/artifact/patchprocess/diffJavacWarnings.txt
|
| javadoc | https://builds.apache.org/job/PreCommit-HDFS-Build/13027/artifact/patchprocess/diffJavadocWarnings.txt
|
| checkstyle |  https://builds.apache.org/job/PreCommit-HDFS-Build/13027/artifact/patchprocess/diffcheckstylehadoop-hdfs-client.txt
|
| Findbugs warnings | https://builds.apache.org/job/PreCommit-HDFS-Build/13027/artifact/patchprocess/newPatchFindbugsWarningshadoop-hdfs-client.html
|
| hadoop-hdfs-client test log | https://builds.apache.org/job/PreCommit-HDFS-Build/13027/artifact/patchprocess/testrun_hadoop-hdfs-client.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/13027/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf909.gq1.ygridcore.net 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 |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/13027/console |


This message was automatically generated.

> DFSStripedOutputStream.writeChunk should not wait for writing parity 
> ---------------------------------------------------------------------
>
>                 Key: HDFS-8287
>                 URL: https://issues.apache.org/jira/browse/HDFS-8287
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs-client
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Kai Sasaki
>         Attachments: HDFS-8287-HDFS-7285.00.patch, HDFS-8287-HDFS-7285.01.patch, HDFS-8287-HDFS-7285.02.patch,
HDFS-8287-HDFS-7285.03.patch, HDFS-8287-HDFS-7285.04.patch, HDFS-8287-HDFS-7285.05.patch,
HDFS-8287-HDFS-7285.06.patch, HDFS-8287-HDFS-7285.07.patch, HDFS-8287-HDFS-7285.08.patch,
HDFS-8287-HDFS-7285.09.patch, HDFS-8287-HDFS-7285.10.patch, HDFS-8287-HDFS-7285.11.patch,
HDFS-8287-HDFS-7285.WIP.patch, HDFS-8287-performance-report.pdf, HDFS-8287.12.patch, h8287_20150911.patch,
jstack-dump.txt
>
>
> When a stripping cell is full, writeChunk computes and generates parity packets.  It
sequentially calls waitAndQueuePacket so that user client cannot continue to write data until
it finishes.
> We should allow user client to continue writing instead but not blocking it when writing
parity.



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