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Date: Thu, 1 Sep 2016 09:29:21 +0000 (UTC)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Message-ID: <JIRA.12689681.1390081980000.467587.1472722161053@Atlassian.JIRA>
In-Reply-To: <JIRA.12689681.1390081980000@Atlassian.JIRA>
References: <JIRA.12689681.1390081980000@Atlassian.JIRA> <JIRA.12689681.1390081980235@arcas>
Subject: [jira] [Commented] (MAPREDUCE-5728) Check NPE for
 serializer/deserializer in MapTask
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archived-at: Thu, 01 Sep 2016 09:29:38 -0000


    [ https://issues.apache.org/jira/browse/MAPREDUCE-5728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15454885#comment-15454885 ] 

Hadoop QA commented on MAPREDUCE-5728:
--------------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 22s {color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s {color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m 0s {color} | {color:red} 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} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 9m 30s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 28s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 22s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 32s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m 58s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 28s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 27s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 25s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 25s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 18s {color} | {color:red} hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core: The patch generated 3 new + 231 unchanged - 0 fixed = 234 total (was 231) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 33s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s {color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 10s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 21s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 23s {color} | {color:green} hadoop-mapreduce-client-core in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 22s {color} | {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 19m 50s {color} | {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:9560f25 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12623830/MAPREDUCE-5728-trunk.patch |
| JIRA Issue | MAPREDUCE-5728 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs  checkstyle  |
| uname | Linux 0223fe77f0e7 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 |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 08f55cc |
| Default Java | 1.8.0_101 |
| findbugs | v3.0.0 |
| checkstyle | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6705/artifact/patchprocess/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt |
|  Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6705/testReport/ |
| modules | C: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core U: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core |
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6705/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.


> Check NPE for serializer/deserializer in MapTask
> ------------------------------------------------
>
>                 Key: MAPREDUCE-5728
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5728
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: client
>    Affects Versions: 2.2.0
>            Reporter: Jerry He
>            Assignee: Jerry He
>            Priority: Minor
>              Labels: BB2015-05-TBR
>         Attachments: MAPREDUCE-5728-trunk.patch
>
>
> Currently we will get NPE if the serializer/deserializer is not configured correctly.
> {code}
> 14/01/14 11:52:35 INFO mapred.JobClient: Task Id : attempt_201401072154_0027_m_000002_2, Status : FAILED
> java.lang.NullPointerException
>         at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.<init>(MapTask.java:944)
>         at org.apache.hadoop.mapred.MapTask$NewOutputCollector.<init>(MapTask.java:672)
>         at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:740)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:368)
>         at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
>         at java.security.AccessController.doPrivileged(AccessController.java:362)
>         at javax.security.auth.Subject.doAs(Subject.java:573)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1502)
>         at org.apache.hadoop.mapred.Child.main(Child.java:249)
> {code}
> serializationFactory.getSerializer and serializationFactory.getDeserializer returns NULL in this case.
> Let's check NPE for serializer/deserializer in MapTask so that we don't get meaningless NPE.


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