Enrico Olivelli created CURATOR-408:
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             Summary: Handle graceful close of ZookKeeper client waiting for 
all resources to be released
                 Key: CURATOR-408
                 URL: https://issues.apache.org/jira/browse/CURATOR-408
             Project: Apache Curator
          Issue Type: Improvement
          Components: Client
    Affects Versions: 3.4.0
            Reporter: Enrico Olivelli


Ths idea is to leverage the new ZooKeeper#close(timeoutMs) method introduced 
with ZOOKEEPER-2697.

This new method waits for the internal threads to finish, this way the client 
is sure that all internal resources handled but low-level ZooKeeper client have 
been released.

This is very useful in tests because the user can wait for the test environment 
to be cleared.

In some cases you want to return from the 'close' method as soon as possibile. 
In ZooKeeper a new specific method as been added in order to let the user ask 
for a specific behaviour.



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