[jira] [Created] (DISPATCH-491) Frequent skipped HELLO message from route engine

["Ted Ross (JIRA)" <ji...@apache.org>]

Ted Ross created DISPATCH-491:
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             Summary: Frequent skipped HELLO message from route engine
                 Key: DISPATCH-491
                 URL: https://issues.apache.org/jira/browse/DISPATCH-491
             Project: Qpid Dispatch
          Issue Type: Bug
          Components: Routing Engine
    Affects Versions: 0.6.1
            Reporter: Ted Ross
            Assignee: Ted Ross
             Fix For: 0.7.0


HELLO messages are exchanged between neighbour routers in a network at an interval of one-second.  Occasionally, an interval will be skipped and there will be two seconds between HELLO messages sent from a router.
This is caused by measuring the time-since-last-hello to determine if a new HELLO should be sent.  If, for some reason, the invocation of the "tick" method in the router engine happens just slightly less than one second after the last tick, the HELLO won't be sent until the next tick.
This can be seen by enabling trace+ for ROUTER_HELLO logs.



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