Monotonic rate counters (#23) #30
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ghost
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Do you know what happens when UnknownValue bubbles up? We obviously don't want the agent to crash when one counter wraps. |
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Agent calls either get_samples_with_timestamps or get_samples which are catching all exceptions and just not dumping the problematic value (mongo is using get_sample but is catching UnknownValue explicitly) |
alq666
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Apr 19, 2012
Fixes Monotonic rate counters (#23)
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Initially defined in #23. |
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Make sure we are not reporting metric on a wrapped counter. This works only for increasing counters (not decreasing). An 'UnknownValue' exception is raised if the counter is decreasing, allowing the value not to be picked up at all by the agent.
Updated tests to reflect the change.