[rabbitmq-discuss] Federation Issues: Disconnects and Failures on Queue Bind - 2012-01-20
dawgtool at aol.com
Tue Jan 24 18:37:08 GMT 2012
On a side note; the performance I am seeing between cluster is very
Publishing to the federated exchange seems to consume about ~4 times the
CPU as a typical exchange.
The downstream cluster also sees about the same level of cpu usage.
Cluster(001) dc001-exchange-u (fanout)
Cluster(002) dc001-exchange-d (fanout) -> dc001-queue-d
Cluster(001) CPUs: 45% consumed
Cluster(002) CPUs: 47% consumed
Cluster(001) CPUs: 97% consumed
Cluster(002) CPUs: 97% consumed
What I was hoping to see that Cluster(002) would be about half the cpu
consumption as Cluster(001).
Or something like the scenario of publishing to a cluster on host 1 with
the queue on host 2.
Host 1 would take on the message handling from the publisher and hand it
off to host 2 which writes to the queue (spreads the load across the
cluster, but adds a little overhead).
Please let me know if I have missed something, or if you can think of
any tricks to reduce the cpu usage.
On 1/24/12 12:19 PM, DawgTool wrote:
> Hi Simon,
> It appears there was a delay on dc001-exchange-u binding to
> federation: dc001........
> Not sure the exact time it took before I could send messages to that
> exchange (complained about no route), but eventually it started working.
> I'll run some additional test and respond back to this thread.
> Thank you.
> On 1/24/12 6:43 AM, Simon MacMullen wrote:
>> On 23/01/12 19:46, DawgTool wrote:
>>> ok, created the exchange before starting the downstream server.
>>> Federation exchange is created, but it is not bound to the
>>> Am I missing something?
>> What do you mean by not bound? The exchanges should be on different
>> machines so they can't be bound in the usual sense of the word. What
>> were you expecting to see, and what did you see instead?
>> Cheers, Simon
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