Fangmin Lv created ZOOKEEPER-3178:
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Summary: Remove PrepRequestProcessor from RO ZooKeeperServer to
avoid txns being created in RO mode
Key: ZOOKEEPER-3178
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3178
Project: ZooKeeper
Issue Type: Bug
Components: server
Reporter: Fangmin Lv
Assignee: Fangmin Lv
Fix For: 3.6.0
For some reason, the ReadOnlyZooKeeperServer was implemented with
PrepRequestProcessor, which is meaningless and error-prone, since all it does
is preparing txn, and we shouldn't allow txns being created on non-leader
server.
This will cause dangling global session on RO observer, because the
createSession is being generated, and the code thought it's global session and
added to Snapshot.
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