Qihong Xu created ZOOKEEPER-2927:
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             Summary: Local session reconnect validation not forward to leader
                 Key: ZOOKEEPER-2927
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2927
             Project: ZooKeeper
          Issue Type: Improvement
          Components: java client, quorum, server
    Affects Versions: 3.5.3
         Environment: configuration management system based on zookeeper 3.5.3
            Reporter: Qihong Xu
            Priority: Minor


When zookeeper quorum recovers from shutdown/crash, a client with a local 
session will reconnect to a random server in quorum. If this random-chosen 
server is not leader and does not own the local session previously, it will 
forward this session to leader for validation. And then if this is a global 
session, leader will update its owner, if not, leader adds Boolean false to 
packet and does nothing. 

Since our system involves mostly local session and has a large amount of 
connections, this procedure may be redundant and add potential pressure to 
leader. Is this reasonable for the reconnect scenario that local session does 
not forward to leader, instead return by follower directly? 




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