title: Does apache ZooKeeper have a way to prioritize watch callbacks?
body: <p>When we lose and reestablish a ZK session's connection, every watch callback that a process has registered is called. In a fairly extensive and complex system there may be many watch callbacks (many 10s) and even if fast could take a longer time to get through. Some of those are more critical than others to our ZK client system.</p>
  <p>Is there any way (or workaround) to prioritize certain watch callbacks so they are provided sooner?</p>
  <p>The programmer guide and recipes didn't hint at anything here so my fingers are crossed there's some unmentioned technique other than just getting through the other callbacks &quot;really fast&quot;.</p>