The input to server1 has be relatively consistent, save the few spikes around
the time the server2 starting exhibiting abnormal highs and lows. under
normal conditions it typical has a consistent deviation of 5-10k (so in the
evening/early morning it is anywhere between 15k and 25k, while during the
day its between 25 and 35/40k). Even during the incident server1 was only
receiving around 30k.

Something happens (assumed to be a spike) causes the receiver to throttle or
deny input resulting in the sender queuing. The more the sender queues the
more it tries to send when the retriever allows it resulting in high spikes
of 1 million events and lows of 5k periodically. In todays case restarting
the receiver corrected the issue resulting in more consistent input on the
receiver from the sender and the sender quickly dequeing.


singh.janmejay wrote
> Has it just ramped-down on load

Right now server1 is setup to rebind ever 250000 events; should roughly be
every 5 seconds at 50k. If anything it might not be frequent enough.


singh.janmejay wrote
>  are you cycling connections too frequently? 


Only the receiver was restarted. Though in the past we have also tried
restart the sender. Sometimes that works do .... though not always.
restarting both will always work.

singh.janmejay wrote
> Or was sender restarted recently?






-----
~Regards

Matthew Gaetano
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