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Check queue perfdata
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Use case
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Sometimes OpenStack services use common messaging system very prodigally. For example neutron metering agent sending all database table data on new object creation i.e https://review.openstack.org/#/c/143672/. It cause to neutron degradation and other obvious problems.
It will be nice to have a way to track messages count and messages size in queue during tests/benchmarks.


Problem description
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Heavy usage of queue isn’t checked.


Possible solution
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* Before running tests/benchmarks start process which will connect to queue topics and measure messages count, size and other data which we need.