Tao Wang created FLINK-6192:
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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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