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Ran 12 Aug 2016 09:37PM UTC

Files 162

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Committed 12 Aug 2016 09:09PM UTC coverage: 86.658%. Remained the same

Job # TEST_SUITE=backend

Build Type

push

travis-ci

Committed by

timabbott

Commit Message

Fix excessive CPU usage by rabbitmq-numconsumers Nagios checks.

The previous model for these Nagios checks was kinda crazy -- every
minute, we'd run a full `rabbitmctl list_consumers` for each of the
dozen+ consumers that we have, and then do the exact same parsing
logic for each to determine whether the target queue has a running
consumer to write out a state file.

Because `rabbitmctl list_consumers` takes a small amount of resources,
on systems where CPU is very limited (e.g. t2 style AWS instances),
this minor CPU wastage could be problematic.

Now we just do that `rabbitmqctl list_consumers` once per minute, and
output all the state files from a single command.

Further TODO items on this front include removing the hardcoded list
of queues.

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