Multi Op Watch Events
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Key: ZOOKEEPER-1289
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1289
Project: ZooKeeper
Issue Type: New Feature
Components: c client, java client, server
Reporter: Marc Celani
Caches built on top of zookeeper clients can become inconsistent because of
lack of multi op watches. Our clients receive watch notifications for paths one
at a time, and in their watch handling, invalidate the path in the cache.
However, the cache now has an inconsistent view of zookeeper, since it is
receiving the notifications one at a time. In general, the watch handling
semantics do not conform with the idea of a multi op. If changes can be made to
multiple paths atomically, all clients should be notified of that change
atomically.
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