Mate Szalay-Beko created ZOOKEEPER-3643:
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             Summary: Testing and documenting secure and unsecure ZK client 
connection from the same JVM
                 Key: ZOOKEEPER-3643
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3643
             Project: ZooKeeper
          Issue Type: Test
            Reporter: Mate Szalay-Beko
            Assignee: Mate Szalay-Beko


We are working in the ZooKeeper SSL integration in HBase. By default, one can 
enable ZooKeeper SSL client connections using Java System Properties. However, 
there are certain use-cases, when we need to connect to two ZooKeeper quorum 
from the same JVM (e.g. when connecting to two HBase clusters for data 
synchronization). It is possible, that one of the ZooKeeper quorum use SSL 
while the other doesn't.

In this case it is not possible to use Java System Properties, as those will be 
affecting both ZooKeeper client connections. These use-cases require code 
modifications e.g. in HBase to use custom ZooKeeper client configurations. We 
need to add unit test in ZooKeeper to verify that it works and also make sense 
to document this use-case to help other open source projects to start using 
ZooKeeper SSL.



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