Alexander Shraer created ZOOKEEPER-1701:
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Summary: When new and old config have the same version, no need to
write new config to disk or create new connections
Key: ZOOKEEPER-1701
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1701
Project: ZooKeeper
Issue Type: Improvement
Components: server
Affects Versions: 3.5.0
Reporter: Alexander Shraer
Assignee: Alexander Shraer
Priority: Minor
Fix For: 3.5.0
setLastSeenQuorumVerifier in QuorumPeer.java always writes the new config to
disk and tries to make new connections to servers in new config. When the new
config has the same version as the committed one (e.g., when the config
received in a NEWLEADER message is already known to the follower), there's no
need to write it to disk or to create new connections.
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