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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9011) Support splitting BlockReport of a storage into multiple RPC
Date Thu, 03 Sep 2015 22:03:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14729883#comment-14729883
] 

Hadoop QA commented on HDFS-9011:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  17m 43s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to include 8 new
or modified test files. |
| {color:green}+1{color} | javac |   7m 55s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |  10m  8s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 23s | The applied patch does not increase
the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle |   1m 23s | The applied patch generated  8 new checkstyle
issues (total was 424, now 426). |
| {color:red}-1{color} | whitespace |   0m  3s | The patch has 1  line(s) that end in whitespace.
Use git apply --whitespace=fix. |
| {color:green}+1{color} | install |   1m 31s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 32s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   2m 31s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | native |   3m 15s | Pre-build of native portion |
| {color:red}-1{color} | hdfs tests | 168m  7s | Tests failed in hadoop-hdfs. |
| | | 213m 34s | |
\\
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|| Reason || Tests ||
| Failed unit tests | hadoop.hdfs.TestDFSFinalize |
|   | hadoop.hdfs.server.datanode.TestDnRespectsBlockReportSplitThreshold |
|   | hadoop.hdfs.web.TestWebHDFSOAuth2 |
|   | hadoop.hdfs.TestParallelShortCircuitReadUnCached |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12753882/HDFS-9011.000.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 53c38cc |
| checkstyle |  https://builds.apache.org/job/PreCommit-HDFS-Build/12290/artifact/patchprocess/diffcheckstylehadoop-hdfs.txt
|
| whitespace | https://builds.apache.org/job/PreCommit-HDFS-Build/12290/artifact/patchprocess/whitespace.txt
|
| hadoop-hdfs test log | https://builds.apache.org/job/PreCommit-HDFS-Build/12290/artifact/patchprocess/testrun_hadoop-hdfs.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/12290/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf900.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/12290/console |


This message was automatically generated.

> Support splitting BlockReport of a storage into multiple RPC
> ------------------------------------------------------------
>
>                 Key: HDFS-9011
>                 URL: https://issues.apache.org/jira/browse/HDFS-9011
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>         Attachments: HDFS-9011.000.patch
>
>
> Currently if a DataNode has too many blocks (more than 1m by default), it sends multiple
RPC to the NameNode for the block report, each RPC contains report for a single storage. However,
in practice we've seen sometimes even a single storage can contains large amount of blocks
and the report even exceeds the max RPC data length. It may be helpful to support sending
multiple RPC for the block report of a storage. 



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