#1 Automatic request retries on connect failover

[Benjamin Reed]

When a connection to a ZooKeeper server fails, all of the pending requests will return an error. In reality the requests should be resubmitted when the client reestablishes a connection to ZooKeeper.

For read requests, it's no big deal to just reissue the request. For update requests, the ZooKeeper must be able to detect if the request has been processed and, if so, return the result of the previous execution; otherwise, it should process the request.

[Patrick Hunt]

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Moved to Apache https://issues.apache.org/jira/browse/ZOOKEEPER-22