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Hudson commented on YARN-3469: ------------------------------ FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #163 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/163/]) Fix up author name to Jun Gong in CHANGES.txt for YARN-3469 (kasha: rev 5cda6fffd39fcb997b6e3cbcd0a2e2dce07153e1) * hadoop-yarn-project/CHANGES.txt > ZKRMStateStore: Avoid setting watches that are not required > ----------------------------------------------------------- > > Key: YARN-3469 > URL: https://issues.apache.org/jira/browse/YARN-3469 > Project: Hadoop YARN > Issue Type: Improvement > Affects Versions: 2.6.0 > Reporter: Jun Gong > Assignee: Jun Gong > Priority: Minor > Fix For: 2.8.0 > > Attachments: YARN-3469.01.patch > > > In ZKRMStateStore, most operations(e.g. getDataWithRetries, > getDataWithRetries, getDataWithRetries) set watches on znode. Large watches > will cause problem such as [ZOOKEEPER-706: large numbers of watches can cause > session re-establishment to > fail|https://issues.apache.org/jira/browse/ZOOKEEPER-706]. > Although there is a workaround that setting jute.maxbuffer to a larger value, > we need to adjust this value once there are more app and attempts stored in > ZK. And those watches are useless now. It might be better that do not set > watches. -- This message was sent by Atlassian JIRA (v6.3.4#6332)