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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8856) Make LeaseManager#countPath O(1)
Date Wed, 05 Aug 2015 21:29:06 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14658979#comment-14658979
] 

Hadoop QA commented on HDFS-8856:
---------------------------------

\\
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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 25s | 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 1 new
or modified test files. |
| {color:green}+1{color} | javac |   7m 45s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 44s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 24s | The applied patch does not increase
the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle |   1m 25s | The applied patch generated  2 new checkstyle
issues (total was 296, now 293). |
| {color:red}-1{color} | whitespace |   0m  0s | The patch has 12  line(s) that end in whitespace.
Use git apply --whitespace=fix. |
| {color:green}+1{color} | install |   1m 21s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 36s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   2m 33s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | native |   3m  4s | Pre-build of native portion |
| {color:green}+1{color} | hdfs tests | 162m 47s | Tests passed in hadoop-hdfs. |
| | | 207m  8s | |
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12748887/HDFS-8856.02.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 4ab49a4 |
| checkstyle |  https://builds.apache.org/job/PreCommit-HDFS-Build/11908/artifact/patchprocess/diffcheckstylehadoop-hdfs.txt
|
| whitespace | https://builds.apache.org/job/PreCommit-HDFS-Build/11908/artifact/patchprocess/whitespace.txt
|
| hadoop-hdfs test log | https://builds.apache.org/job/PreCommit-HDFS-Build/11908/artifact/patchprocess/testrun_hadoop-hdfs.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/11908/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/11908/console |


This message was automatically generated.

> Make LeaseManager#countPath O(1)
> --------------------------------
>
>                 Key: HDFS-8856
>                 URL: https://issues.apache.org/jira/browse/HDFS-8856
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.7.2
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>         Attachments: HDFS-8856.01.patch, HDFS-8856.02.patch, HDFS-8856.03.patch
>
>
> {{LeaseManager#countPath}} loops over all existing lease holders to compute the pending
lease count. We can just track the pending leased files so it runs in constant time.



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