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Hudson commented on YARN-4210: ------------------------------ SUCCESS: Integrated in Hadoop-trunk-Commit #10074 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/10074/]) YARN-4210. HBase reader throws NPE if Get returns no rows (Varun Saxena (sjlee: rev 708fa8b1ae85b6efda318368bc0c0ba02d4958c8) * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/FlowRunEntityReader.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/TimelineEntityReader.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/ApplicationEntityReader.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/test/java/org/apache/hadoop/yarn/server/timelineservice/storage/TestHBaseTimelineStorage.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/FlowActivityEntityReader.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/GenericEntityReader.java * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/test/java/org/apache/hadoop/yarn/server/timelineservice/reader/TestTimelineReaderWebServicesFlowRun.java > 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 > Fix For: YARN-2928 > > Attachments: YARN-4210-YARN-2928.01.patch, > YARN-4210-YARN-2928.02.patch, YARN-4210-YARN-2928.03.patch > > > This JIRA handles multiple issues. > * 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} > * ResultScanner is not closed in HBase Reader. > * Exception encountered while reading start and end time in > FlowRunEntityReader -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org