Github user zeb209 commented on the pull request:
https://github.com/apache/trafficserver/pull/189#issuecomment-96043182
No you don't. You just run "traffic_line -x" whenever you think they all
have the new key. Some boxes will run "traffic_line -x" a few minutes later
than the others. It does not matter. The number of session tickets encrypted
with the new key will be small. Typically one rotation cycle is a few hours
such as 24, or 36. A few seconds is like nothing.
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