waitUntilPropogated probably does not need to sleep for 1/2 a minute

[stephentu]

ZooKeeperProxy's waitUntilPropogated probably does not need to wait 1/2 a minute - it's making the test cases run slow because we spend at least a minute in Thread.sleep(). i move we change the time to something more reasonable, like 5 seconds.

[marmbrus]

So the problem is that this needs to be the same as the connection timeout for zookeeper. We could use a different time out for the test zookeeper (since the tests will be be running on the same machine as zookeeper). However, I don't think we want to decrease the default timeout for zookeeper proxy as lower timeouts tend to break experiments.

[marmbrus]

this is now fixed for testcases. however we may want to keep this issue open if propagation time is going to be an issue for the director