[ https://issues.apache.org/jira/browse/YARN-8632?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yufei Gu updated YARN-8632: --------------------------- Summary: Threads in SLS quit without logging exception (was: No data in file realtimetrack.json after running SchedulerLoadSimulator) > Threads in SLS quit without logging exception > ---------------------------------------------- > > Key: YARN-8632 > URL: https://issues.apache.org/jira/browse/YARN-8632 > Project: Hadoop YARN > Issue Type: Bug > Components: scheduler-load-simulator > Reporter: Xianghao Lu > Assignee: Xianghao Lu > Priority: Major > Attachments: YARN-8632-branch-2.7.2.001.patch, YARN-8632.001.patch, > YARN-8632.002.patch, YARN-8632.003.patch, YARN-8632.004.patch > > > Recently, I have been using > [SchedulerLoadSimulator|https://hadoop.apache.org/docs/r2.7.2/hadoop-sls/SchedulerLoadSimulator.html] > to validate the impact of changes on my FairScheduler. I encountered some > problems. > Firstly, I fix a npe bug with the patch in > https://issues.apache.org/jira/browse/YARN-4302 > Secondly, everything seems to be ok, but I just get "[]" in file > realtimetrack.json. Finally, I find the MetricsLogRunnable thread will exit > because of npe, > the reason is "wrapper.getQueueSet()" is still null when executing "String > metrics = web.generateRealTimeTrackingMetrics();" > So, we should put "String metrics = web.generateRealTimeTrackingMetrics();" > in try section to avoid MetricsLogRunnable thread exit with unexpected > exception. > My hadoop version is 2.7.2, it seems that hadoop trunk branch also has the > second problem and I have made a patch to solve it. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org