[ https://issues.apache.org/jira/browse/YARN-2052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14045265#comment-14045265 ]
Jian He commented on YARN-2052: ------------------------------- hmm, we need to think about toString compatibility too, let's leave it separately in YARN-2182. thx! one more comment : These should be invoked only if work-preserving restart is enabled. {code} rmContext.setEpoch(rmStore.loadEpoch()); rmStore.updateEpoch(rmContext.getEpoch() + 1); {code} > ContainerId creation after work preserving restart is broken > ------------------------------------------------------------ > > Key: YARN-2052 > URL: https://issues.apache.org/jira/browse/YARN-2052 > Project: Hadoop YARN > Issue Type: Sub-task > Components: resourcemanager > Reporter: Tsuyoshi OZAWA > Assignee: Tsuyoshi OZAWA > Attachments: YARN-2052.1.patch, YARN-2052.2.patch, YARN-2052.3.patch, > YARN-2052.4.patch, YARN-2052.5.patch, YARN-2052.6.patch, YARN-2052.7.patch > > > Container ids are made unique by using the app identifier and appending a > monotonically increasing sequence number to it. Since container creation is a > high churn activity the RM does not store the sequence number per app. So > after restart it does not know what the new sequence number should be for new > allocations. -- This message was sent by Atlassian JIRA (v6.2#6252)