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Posted to mapreduce-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2016/02/06 00:43:40 UTC
[jira] [Commented] (MAPREDUCE-6110) JobHistoryServer CLI throws
NullPointerException with job ids that do not exist
[ https://issues.apache.org/jira/browse/MAPREDUCE-6110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15135278#comment-15135278 ]
Hadoop QA commented on MAPREDUCE-6110:
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| (x) *{color:red}-1 overall{color}* |
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| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 10s {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} |
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| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 7s {color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 24s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 19s {color} | {color:green} the patch passed with JDK v1.8.0_72 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 19s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 21s {color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 21s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 15s {color} | {color:red} hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core: patch generated 1 new + 50 unchanged - 1 fixed = 51 total (was 51) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 29s {color} | {color:green} the patch passed {color} |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:0ca8df7 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12786575/MAPREDUCE-6110.02.patch |
| JIRA Issue | MAPREDUCE-6110 |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite unit findbugs checkstyle |
| uname | Linux 795b0aa21b84 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 / a37e423 |
| Default Java | 1.7.0_95 |
| Multi-JDK versions | /usr/lib/jvm/java-8-oracle:1.8.0_72 /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95 |
| findbugs | v3.0.0 |
| checkstyle | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6315/artifact/patchprocess/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.txt |
| JDK v1.7.0_95 Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6315/testReport/ |
| modules | C: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core U: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core |
| Max memory used | 77MB |
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6315/console |
| Powered by | Apache Yetus 0.2.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> JobHistoryServer CLI throws NullPointerException with job ids that do not exist
> -------------------------------------------------------------------------------
>
> Key: MAPREDUCE-6110
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6110
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobhistoryserver
> Reporter: Li Lu
> Assignee: Kai Sasaki
> Priority: Minor
> Attachments: MAPREDUCE-6110.01.patch, MAPREDUCE-6110.02.patch
>
>
> When using JobHistoryServer CLI to query a job id that does not exist on the server, it may throw NullPointerException sometimes.
> I tried "mapred job -events <some_wrong_jobId> 0 100", and the result was:
> Exception in thread "main" java.lang.NullPointerException
> at org.apache.hadoop.mapreduce.tools.CLI.listEvents(CLI.java:487)
> at org.apache.hadoop.mapreduce.tools.CLI.run(CLI.java:316)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
> at org.apache.hadoop.mapred.JobClient.main(JobClient.java:1237)
> Similar symptoms also appear with -list-attempt-ids, but were fine with -status and -set-priority.
> I traced back to CLI.listEvents, and line 487 is:
> {code}
> TaskCompletionEvent[] events = job.
> getTaskCompletionEvents(fromEventId, numEvents);
> {code}
> The job object is obtained from JobID.forName(jobid)) (line 316), which will return null if the job does not exist on server.
> Maybe we want to have some behaviors consistent with -status here, by simply reporting jobId does not exist?
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