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https://issues.apache.org/jira/browse/AMBARI-17253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15379736#comment-15379736
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Masahiro Tanaka commented on AMBARI-17253:
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Thanks [~swagle]!
> Ambari Alert causes too many wanings in ZooKeeper logs.
> -------------------------------------------------------
>
> Key: AMBARI-17253
> URL: https://issues.apache.org/jira/browse/AMBARI-17253
> Project: Ambari
> Issue Type: Bug
> Components: ambari-agent
> Affects Versions: trunk
> Reporter: Masahiro Tanaka
> Assignee: Masahiro Tanaka
> Priority: Critical
> Fix For: 2.4.0
>
> Attachments: AMBARI-17253.1.patch, AMBARI-17253.2.patch,
> AMBARI-17253.3.patch, AMBARI-17253.4.patch, AMBARI-17253.5.patch,
> AMBARI-17253.6.patch, AMBARI-17253.patch
>
>
> There are too many WARNING in ZooKeeper log.
> {code}
> 2016-06-15 21:02:15,405 - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@357] - caught end of
> stream exception
> EndOfStreamException: Unable to read additional data from client sessionid
> 0x0, likely client has closed socket
> at
> org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:228)
> at
> org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:208)
> at java.lang.Thread.run(Thread.java:745)
> {code}
> It may be because of Ambari Alert. Ambari Alert pings to the zookeeper port
> to do monitoring.
> We should use 'ruok' to monitor zookeepers.
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