[ https://issues.apache.org/jira/browse/YARN-8451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16528057#comment-16528057 ]
Hudson commented on YARN-8451: ------------------------------ SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14503 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/14503/]) YARN-8451. Multiple NM heartbeat thread created when a slow NM resync (jlowe: rev 100470140d86eede0fa240a9aa93226f274ee4f5) * (edit) hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeManager.java * (edit) hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/TestNodeManagerResync.java > Multiple NM heartbeat thread created when a slow NM resync with RM > ------------------------------------------------------------------ > > Key: YARN-8451 > URL: https://issues.apache.org/jira/browse/YARN-8451 > Project: Hadoop YARN > Issue Type: Bug > Components: nodemanager > Reporter: Botong Huang > Assignee: Botong Huang > Priority: Major > Fix For: 2.10.0, 3.2.0, 3.1.1, 2.9.2, 3.0.4 > > Attachments: YARN-8451.v1.patch, YARN-8451.v2.patch > > > During a NM resync with RM (say RM did a master slave switch), if NM is > running slow, more than one RESYNC event may be put into the NM dispatcher by > the existing heartbeat thread before they are processed. As a result, > multiple new heartbeat thread are later created and start to hb to RM > concurrently with their own responseId. If at some point of time, one thread > becomes more than one step behind others, RM will send back a resync signal > in this heartbeat response, killing all containers in this NM. > See comments below for details on how this can happen. -- 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