[ https://issues.apache.org/jira/browse/YARN-9673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
chan updated YARN-9673: ----------------------- Environment: (was: protected void handleStoreEvent(RMStateStoreEvent event) { this.writeLock.lock(); try { if (LOG.isDebugEnabled()) { LOG.debug("Processing event of type " + event.getType()); } final RMStateStoreState oldState = getRMStateStoreState(); this.stateMachine.doTransition(event.getType(), event); if (oldState != getRMStateStoreState()) { LOG.info("RMStateStore state change from " + oldState + " to " + getRMStateStoreState()); } } catch (InvalidStateTransitonException e) { LOG.error("Can't handle this event at current state", e); } finally { this.writeLock.unlock(); } }) > RMStateStore writeLock make app waste more time > ----------------------------------------------- > > Key: YARN-9673 > URL: https://issues.apache.org/jira/browse/YARN-9673 > Project: Hadoop YARN > Issue Type: Bug > Components: yarn > Affects Versions: 2.7.3 > Reporter: chan > Priority: Blocker > > We have 1000 nodes in the cluster. Recently I found that when many tasks are > submitted to the resourcemanager, an application takes 5-8 minutes from NEW > to NEW_SAVING state, and an appattempt takes almost the same time from > ALLOCATED_SAVING to ALLOCATED. I think the problem occurs in > RMStateStore#handleStoreEvent, both methods will call this method, and this > method is locked. I want to ask why there use writeLock to lock it. > Anyone has encountered the same problem? > -- This message was sent by Atlassian JIRA (v7.6.14#76016) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org