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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8647) Abstract BlockManager's rack policy into BlockPlacementPolicy
Date Mon, 19 Oct 2015 19:37:27 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14963918#comment-14963918
] 

Hadoop QA commented on HDFS-8647:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | pre-patch |  20m 13s | Pre-patch trunk has 1 extant Findbugs (version
3.0.0) warnings. |
| {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 6 new
or modified test files. |
| {color:green}+1{color} | javac |   7m 58s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |  10m 22s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 27s | The applied patch does not increase
the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle |   2m 10s | There were no new checkstyle issues. |
| {color:red}-1{color} | whitespace |   0m  5s | The patch has 4  line(s) that end in whitespace.
Use git apply --whitespace=fix. |
| {color:green}+1{color} | install |   1m 38s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 36s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   4m 25s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:red}-1{color} | common tests |  10m  5s | Tests failed in hadoop-common. |
| {color:red}-1{color} | hdfs tests |  50m 44s | Tests failed in hadoop-hdfs. |
| | | 108m 48s | |
\\
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|| Reason || Tests ||
| Failed unit tests | hadoop.fs.TestLocalFsFCStatistics |
|   | hadoop.hdfs.server.namenode.ha.TestStandbyCheckpoints |
|   | hadoop.hdfs.server.blockmanagement.TestBlockManager |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12767395/HDFS-8647-007.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 6144e01 |
| Pre-patch Findbugs warnings | https://builds.apache.org/job/PreCommit-HDFS-Build/13053/artifact/patchprocess/trunkFindbugsWarningshadoop-hdfs.html
|
| whitespace | https://builds.apache.org/job/PreCommit-HDFS-Build/13053/artifact/patchprocess/whitespace.txt
|
| hadoop-common test log | https://builds.apache.org/job/PreCommit-HDFS-Build/13053/artifact/patchprocess/testrun_hadoop-common.txt
|
| hadoop-hdfs test log | https://builds.apache.org/job/PreCommit-HDFS-Build/13053/artifact/patchprocess/testrun_hadoop-hdfs.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/13053/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf902.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/13053/console |


This message was automatically generated.

> Abstract BlockManager's rack policy into BlockPlacementPolicy
> -------------------------------------------------------------
>
>                 Key: HDFS-8647
>                 URL: https://issues.apache.org/jira/browse/HDFS-8647
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Ming Ma
>            Assignee: Brahma Reddy Battula
>         Attachments: HDFS-8647-001.patch, HDFS-8647-002.patch, HDFS-8647-003.patch, HDFS-8647-004.patch,
HDFS-8647-004.patch, HDFS-8647-005.patch, HDFS-8647-006.patch, HDFS-8647-007.patch
>
>
> Sometimes we want to have namenode use alternative block placement policy such as upgrade
domains in HDFS-7541.
> BlockManager has built-in assumption about rack policy in functions such as useDelHint,
blockHasEnoughRacks. That means when we have new block placement policy, we need to modify
BlockManager to account for the new policy. Ideally BlockManager should ask BlockPlacementPolicy
object instead. That will allow us to provide new BlockPlacementPolicy without changing BlockManager.



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