Justin SB created ZOOKEEPER-1726:
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Summary: No way to dynamically go from 1 ZK server -> 2 ZK servers?
Key: ZOOKEEPER-1726
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1726
Project: ZooKeeper
Issue Type: Bug
Affects Versions: 3.5.0
Reporter: Justin SB
The dynamic reconfiguration feature is great. But it doesn't seem to be
possible to go from 1 server to 2 servers (1 server + 1 observer). When
there's only one server, ZK automatically starts in single server mode; when in
single server mode trying to add a server causes a class cast exception because
the server is a ZooKeeperServer, not a LeaderZooKeeperServer.
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