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Junping Du updated YARN-4325: ----------------------------- Attachment: YARN-4325-v1.patch Add related unit test in v1 patch. > Purge app state from NM state-store should cover more LOG_HANDLING cases > ------------------------------------------------------------------------ > > Key: YARN-4325 > URL: https://issues.apache.org/jira/browse/YARN-4325 > Project: Hadoop YARN > Issue Type: Bug > Affects Versions: 2.6.0 > Reporter: Junping Du > Assignee: Junping Du > Priority: Critical > Attachments: ApplicationImpl.PNG, YARN-4325-v1.patch, YARN-4325.patch > > > From a long running cluster, we found tens of thousands of stale apps still > be recovered in NM restart recovery. > After investigating, there are three issues cause app state leak in NM > state-store: > 1. APPLICATION_LOG_HANDLING_FAILED is not handled with remove App in > NMStateStore. > 2. APPLICATION_LOG_HANDLING_FAILED event is missing in sent when hit > aggregator's doAppLogAggregation() exception case. > 3. Only Application in FINISHED status receiving APPLICATION_LOG_FINISHED has > transition to remove app in NM state store. Application in other status - > like APPLICATION_RESOURCES_CLEANUP will ignore the event and later forget to > remove this app from NM state store even after app get finished. -- This message was sent by Atlassian JIRA (v6.3.4#6332)