[ https://issues.apache.org/jira/browse/YARN-4987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Li Lu updated YARN-4987: ------------------------ Attachment: YARN-4987-trunk.003.patch 003 patch addresses checkstyle issues. > Read cache concurrency issue between read and evict in EntityGroupFS timeline > store > ------------------------------------------------------------------------------------ > > Key: YARN-4987 > URL: https://issues.apache.org/jira/browse/YARN-4987 > Project: Hadoop YARN > Issue Type: Sub-task > Reporter: Li Lu > Assignee: Li Lu > Priority: Critical > Attachments: YARN-4987-trunk.001.patch, YARN-4987-trunk.002.patch, > YARN-4987-trunk.003.patch > > > To handle concurrency issues, key value based timeline storage may return > null on reads that are concurrent to service stop. This is actually caused by > a concurrency issue between cache reads and evicts. Specifically, if the > storage is being read when it gets evicted, the storage may turn into null. > EntityGroupFS timeline store needs to handle this case gracefully. -- 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