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From "Tao Wang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-6192) reuse zookeeer client created by CuratorFramework
Date Mon, 27 Mar 2017 07:35:41 GMT
Tao Wang created FLINK-6192:

             Summary: reuse zookeeer client created by CuratorFramework
                 Key: FLINK-6192
                 URL: https://issues.apache.org/jira/browse/FLINK-6192
             Project: Flink
          Issue Type: Improvement
          Components: JobManager, YARN
            Reporter: Tao Wang
            Assignee: Tao Wang

Now in yarn mode, there're three places using zookeeper client(web monitor, jobmanager and
resourcemanager) in ApplicationMaster/JobManager, while there're two in TaskManager. They
create new one zookeeper client when they need them.

I believe there're more other places do the same thing, but in one JVM, one CuratorFramework
is enough for connections to one zookeeper client, so we need a singleton to reuse them.

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