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Posted to yarn-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2015/09/29 12:38:04 UTC
[jira] [Commented] (YARN-4210) HBase reader throws NPE if Get
returns no rows
[ https://issues.apache.org/jira/browse/YARN-4210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14934981#comment-14934981 ]
Hadoop QA commented on YARN-4210:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | pre-patch | 16m 15s | Findbugs (version ) appears to be broken on YARN-2928. |
| {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 | 8m 3s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc | 10m 12s | 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:green}+1{color} | checkstyle | 0m 16s | There were no new checkstyle issues. |
| {color:green}+1{color} | whitespace | 0m 0s | The patch has no lines that end in whitespace. |
| {color:green}+1{color} | install | 1m 33s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse | 0m 42s | The patch built with eclipse:eclipse. |
| {color:green}+1{color} | findbugs | 0m 55s | The patch does not introduce any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests | 3m 17s | Tests passed in hadoop-yarn-server-timelineservice. |
| | | 41m 45s | |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12764215/YARN-4210-YARN-2928.01.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | YARN-2928 / def22b9 |
| hadoop-yarn-server-timelineservice test log | https://builds.apache.org/job/PreCommit-YARN-Build/9292/artifact/patchprocess/testrun_hadoop-yarn-server-timelineservice.txt |
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/9292/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf909.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-YARN-Build/9292/console |
This message was automatically generated.
> HBase reader throws NPE if Get returns no rows
> ----------------------------------------------
>
> Key: YARN-4210
> URL: https://issues.apache.org/jira/browse/YARN-4210
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Affects Versions: YARN-2928
> Reporter: Varun Saxena
> Assignee: Varun Saxena
> Attachments: YARN-4210-YARN-2928.01.patch
>
>
> If HBase Get does not fetch any rows for the query, we still try to parse the result and read fields. This leads to NPE while reading metrics. We should not attempt to read anything if no row is returned i.e. result is empty.
> Found during web UI poc testing.
> {noformat}
> 2015-09-29 20:22:32,027 ERROR [95336304@qtp-1814206058-0] reader.TimelineReaderWebServices (TimelineReaderWebServices.java:handleException(199)) - Error while processing REST request
> java.lang.NullPointerException
> at org.apache.hadoop.yarn.server.timelineservice.storage.common.ColumnHelper.readResultsWithTimestamps(ColumnHelper.java:176)
> at org.apache.hadoop.yarn.server.timelineservice.storage.flow.FlowRunColumnPrefix.readResultsWithTimestamps(FlowRunColumnPrefix.java:182)
> at org.apache.hadoop.yarn.server.timelineservice.storage.TimelineEntityReader.readMetrics(TimelineEntityReader.java:212)
> at org.apache.hadoop.yarn.server.timelineservice.storage.FlowRunEntityReader.parseEntity(FlowRunEntityReader.java:136)
> at org.apache.hadoop.yarn.server.timelineservice.storage.TimelineEntityReader.readEntity(TimelineEntityReader.java:137)
> at org.apache.hadoop.yarn.server.timelineservice.storage.HBaseTimelineReaderImpl.getEntity(HBaseTimelineReaderImpl.java:72)
> at org.apache.hadoop.yarn.server.timelineservice.reader.TimelineReaderManager.getEntity(TimelineReaderManager.java:93)
> at org.apache.hadoop.yarn.server.timelineservice.reader.TimelineReaderWebServices.getFlowRun(TimelineReaderWebServices.java:403)
> {noformat}
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