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Expose the current list of timekeys as a buffer metric #2343

Merged
merged 1 commit into from
Mar 25, 2019

Commits on Mar 22, 2019

  1. Expose the current list of timekeys as a buffer metric

    This is useful for monitoring things like:
    
     - How old is the current oldest log message still in the buffer?
    
     - Equivalently, what is the maximum latency of the logging system
       as a whole? This might be interesting to track over time.
    
     - How new is the *newest* log message in the buffer? This might
       indicate a delay upstream of fluentd.
    
    Signed-off-by: Steven McDonald <steven.mcdonald@usabilla.com>
    stevenjm committed Mar 22, 2019
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