[jira] [Created] (ZOOKEEPER-2348) Data between leader and followers are not synchronized.

["Ningning Chen (JIRA)" <ji...@apache.org>]

Ningning Chen created ZOOKEEPER-2348:
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             Summary: Data between leader and followers are not synchronized.
                 Key: ZOOKEEPER-2348
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2348
             Project: ZooKeeper
          Issue Type: Bug
    Affects Versions: 3.5.1
            Reporter: Ningning Chen


Courtsey with [~brahmareddy]

When client session expired, leader tried to remove it from session map and remove its EPHEMERAL znode, for example, /test_znode. This operation succeed on leader, but at the very same time, network fault happended and not synced to followers, a new leader election launched. After leader election finished, the new leader is not the old leader. we found the znode /test_znode still existed in the followers but not on leader

 *Scenario :* 
1) Create znode E.g.  
{{/rmstore/ZKRMStateRoot/RMAppRoot/application_1449644945944_0001/appattempt_1449644945944_0001_000001}}
2) Delete Znode. 
3) Network fault b/w follower and leader machines
4) leader election again and follower became leader.

Now data is not synced with new leader..After this client is not able to same znode.





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