[Sis-ams] Server quick-restart

[Ray, Timothy J. (GSFC-583.0)]

Dear WG members,

 

The purpose of this email is bring up a possible minor tweak.  The tweak
is not needed, and I don't have a strong attachment to it - just want to
mention it...

 

If a configuration server dies and quickly restarts, the registrars will
not miss enough heartbeats to impute its death, and will continue
sending heartbeats.  If the Meta-AMS transport mechanism is udp and the
restarted server uses the same udp port, then these heartbeats will
reach the restarted server.  

 

Would it be better if the server had a grace period at startup during
which it would ignore heartbeats from unregistered registrars (rather
than sending them a 'you-are-dead' message)?  The grace period would
last long enough to allow the registrars to impute the death of the old
registrar and re-register with the restarted registrar.

 

Tim

 

 

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