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Command metrics modeled as a stream #981

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wants to merge 18 commits into from
Closed

Command metrics modeled as a stream #981

wants to merge 18 commits into from

Commits on Nov 17, 2015

  1. HystrixCommandEventStream that models an infinite stream of HystrixCo… 

    …mmandExecutions
    Matt Jacobs committed Nov 17, 2015
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  2. Write command completions to HystrixCommandEventStream (still writing… 

    … to RollingNumber/RollingPercentile as well)
    Matt Jacobs committed Nov 17, 2015
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  3. HystrixCommandMetrics buckets metrics and writes them to Subjects for… 

    … querying
    Matt Jacobs committed Nov 17, 2015
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  4. Reading from rolling percentile subject for latency metrics. 

    * Added HystrixServoMetricsPublisherCommandTest as a concrete unit test that behavior is still correct
    Matt Jacobs committed Nov 17, 2015
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  5. Wired HealthCounts up to HystrixCommandEventStream. 

    * They get calculated only on health count intervals
    Matt Jacobs committed Nov 17, 2015
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  6. Decreasing memory allocations

    Matt Jacobs committed Nov 17, 2015
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  7. Changing model from the first level of event writes being command-lev… 

    …el, to thread-level.

* Added global-level stream as a way to recover command-level streams
    Matt Jacobs committed Nov 17, 2015
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  8. Added object pooling to HystrixLatencyDistribution

    Matt Jacobs committed Nov 17, 2015
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  9. Added streams which sample all thread pool utilization and queue util… 

    …ization
    Matt Jacobs committed Nov 17, 2015
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  10. Stop writing to HystrixRollingNumber for event counters (cumulative a… 

    …nd rolling)
    Matt Jacobs committed Nov 17, 2015
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  11. Removed individual event writes from HystrixCommandMetrics

    Matt Jacobs committed Nov 17, 2015
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  12. Calculating EXCEPTION_THROWN count from other HystrixEventTypes

    Matt Jacobs committed Nov 17, 2015
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  13. Track execution result of RESPONSE_FROM_CACHE

    Matt Jacobs committed Nov 17, 2015
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  14. Fixed thread race in HystrixCommandEventStream construction

    Matt Jacobs committed Nov 17, 2015
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  15. Only calling 1 constructor per metric-stream

    Matt Jacobs committed Nov 17, 2015
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  16. Cleaning up logging and adding some comments to how streams are being… 

    … used for HystrixCommandMetrics
    Matt Jacobs committed Nov 17, 2015
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  17. Ensure only a single thread can reset the command health stream

    Matt Jacobs committed Nov 17, 2015
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  18. More minor cleanup

    Matt Jacobs committed Nov 17, 2015
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