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[Question #260936]: Running multiple carbon caches and rabbitmq

To: graphite-dev@xxxxxxxxxxxxxxxxxxx
From: Krzysztof <question260936@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 19 Jan 2015 11:26:40 -0000
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New question #260936 on Graphite:
https://answers.launchpad.net/graphite/+question/260936

Hi guys,

I want to run monitoring stack based on collectd+carbon+rabbitmq however I have few questions.

I will be pulling up to 100thousand metrics/sec - about 500hosts to monitor with interval of 1 minute (some important metrics will be collected more often, not less than 10secs). Do I need multiple carbon caches to handle this amount of traffic? Or a single carbon cache should be enough?

Second question is about RabbitMQ. By default carbon creates exclusive queues - I want to use rabbit for zero downtime - when server with carbon will die rabbitmq will be collecting the metrics. But when carbon disconnects, the exclusive queue dissapears. Why by defualt carbon creates exclusive queue? I can possibly change the code of the amqp section in carbon .py files but is it a good idea?



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