ZKW constructor should not always create nodes and should be more amenable to
general usage
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Key: HBASE-3123
URL: https://issues.apache.org/jira/browse/HBASE-3123
Project: HBase
Issue Type: Bug
Components: zookeeper
Affects Versions: 0.90.0
Reporter: Jonathan Gray
Priority: Minor
Fix For: 0.92.0
The constructor in ZooKeeperWatcher does too much. It does things like create
the layout in ZK. It's probably not harmful but it's unnecessary. It should
ensure that the basenode is created. Other stuff should at least be stuffed
into an initializeNodes() method or the like and only called by the first
active master on cluster startup.
Other components in HBase that want to also access ZK, things like rest, should
be able to reuse ZKW and ZKUtil easily.
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