[ https://issues.apache.org/jira/browse/YARN-10428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Akira Ajisaka updated YARN-10428: --------------------------------- Fix Version/s: 3.3.2 3.2.3 Backported to branch-3.3, branch-3.2, and branch-3.2.3. > Zombie applications in the YARN queue using FAIR + sizebasedweight > ------------------------------------------------------------------ > > Key: YARN-10428 > URL: https://issues.apache.org/jira/browse/YARN-10428 > Project: Hadoop YARN > Issue Type: Bug > Components: capacityscheduler > Affects Versions: 2.8.5 > Reporter: Guang Yang > Assignee: Andras Gyori > Priority: Critical > Fix For: 3.4.0, 3.2.3, 3.3.2 > > Attachments: YARN-10428.001.patch, YARN-10428.002.patch, > YARN-10428.003.patch > > > Seeing zombie jobs in the YARN queue that uses FAIR and size based weight > ordering policy . > *Detection:* > The YARN UI shows incorrect number of "Num Schedulable Applications". > *Impact:* > The queue has an upper limit of number of running applications, with zombie > job, it hits the limit even though the number of running applications is far > less than the limit. > *Workaround:* > **Fail-over and restart Resource Manager process. > *Analysis:* > **In the heap dump, we can find the zombie jobs in the `FairOderingPolicy# > schedulableEntities` (see attachment). Take application > "application_1599157165858_29429" for example, it is still in the > `FairOderingPolicy#schedulableEntities` set, however, if we check the log of > resource manager, we can see RM already tried to remove the application: > > ./yarn-yarn-resourcemanager-ip-172-21-153-252.log.2020-09-04-04:2020-09-04 > 04:32:19,730 INFO > org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue > (ResourceManager Event Processor): Application removed - appId: > application_1599157165858_29429 user: svc_di_data_eng queue: core-data > #user-pending-applications: -3 #user-active-applications: 7 > #queue-pending-applications: 0 #queue-active-applications: 21 > > So it appears RM failed to removed the application from the set. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org