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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12423) ShutdownHookManager throws exception if JVM is already being shut down
Date Fri, 18 Sep 2015 12:22:05 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14847344#comment-14847344
] 

Hadoop QA commented on HADOOP-12423:
------------------------------------

\\
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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 11s | 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 |   7m 46s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |  10m  7s | 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  5s | The applied patch generated  1 new checkstyle
issues (total was 7, now 7). |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 29s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 34s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   1m 58s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:red}-1{color} | common tests |  22m 45s | Tests failed in hadoop-common. |
| | |  63m 22s | |
\\
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|| Reason || Tests ||
| Failed unit tests | hadoop.ipc.TestRPC |
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12758382/HADOOP-12423.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 92c1af1 |
| checkstyle |  https://builds.apache.org/job/PreCommit-HADOOP-Build/7674/artifact/patchprocess/diffcheckstylehadoop-common.txt
|
| hadoop-common test log | https://builds.apache.org/job/PreCommit-HADOOP-Build/7674/artifact/patchprocess/testrun_hadoop-common.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/7674/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf901.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-HADOOP-Build/7674/console |


This message was automatically generated.

> ShutdownHookManager throws exception if JVM is already being shut down
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-12423
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12423
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>            Reporter: Abhishek Agarwal
>            Assignee: Abhishek Agarwal
>            Priority: Minor
>         Attachments: HADOOP-12423.patch
>
>
> If JVM is under shutdown, static method in ShutdownHookManager will throw an IllegalStateException.
This exception should be caught and ignored while registering the hooks. 
> Stack trace: 
> {noformat}
> java.lang.NoClassDefFoundError: Could not initialize class org.apache.hadoop.util.ShutdownHookManager
>        at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2639) ~[stormjar.jar:1.4.0-SNAPSHOT]
>        at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2612) ~[stormjar.jar:1.4.0-SNAPSHOT]
>        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:370) ~[stormjar.jar:1.4.0-SNAPSHOT]
>        ...
>        ...
>        at backtype.storm.daemon.executor$fn__6647$fn__6659.invoke(executor.clj:692) ~[storm-core-0.9.5.jar:0.9.5]
>        at backtype.storm.util$async_loop$fn__459.invoke(util.clj:461) ~[storm-core-0.9.5.jar:0.9.5]
>        at clojure.lang.AFn.run(AFn.java:24) [clojure-1.5.1.jar:na]
>        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_60]
> {noformat}



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