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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 Wed, 21 Oct 2015 07:29:28 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14966360#comment-14966360
] 

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 |  19m  5s | 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:green}+1{color} | javac |   8m 38s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |  11m  3s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 25s | The applied patch does not increase
the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle |   1m 44s | There were no new checkstyle issues. |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 37s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 36s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   2m 11s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | native |   3m 25s | Pre-build of native portion |
| {color:green}+1{color} | hdfs tests |   0m 30s | Tests passed in hadoop-hdfs-client. |
| | |  49m 18s | |
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12767729/HDFS-8287.15.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 0c4af0f |
| hadoop-hdfs-client test log | https://builds.apache.org/job/PreCommit-HDFS-Build/13103/artifact/patchprocess/testrun_hadoop-hdfs-client.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/13103/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/13103/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, HDFS-8287.13.patch,
HDFS-8287.14.patch, HDFS-8287.15.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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