Introduce min, average, and standard deviation for the number of
executing mutating and readOnly requests.
Introduce min, max, average, and standard deviation for the number
waiting and number waiting per priority level.
Later:
Revised to use a series of windows
Use three individuals instead of array of powers
Later:
Add coarse queue count metrics, removed windowed avg and stddev
Add metrics for number of queued mutating and readOnly requests,
to complement metrics for number executing.
Later:
Removed windowed average and standard deviation because consumers can
derive such from integrals of consumer's chosen window.
Also replaced "requestKind" Prometheus label with "request_kind".
Later:
Revised to focus on sampling
Make the clock intrinsic to a TimedObserver
... so that the clock can be read while holding the observer's lock;
otherwise, forward progress is not guaranteed (and violations were
observed in testing).
Bug fixes and histogram buckets revision
SetX1 to 1 when queue length limit is zero, beause dividing by zero is nasty.
Remove obsolete argument in gen_test.go.
Add a bucket boundary at 0 for sample-and-water-mark histograms, to
distinguish zeroes from non-zeros.
This includes adding Integrator test.
Simplified test code.
More pervasively used "ctlr" instead of "ctl" as abbreviation for
"controller".
Kubernetes-commit: 57ecea22296797a93b0157169db0ff2e477f58d0
* fix a number of unbounded dimensions in request metrics
* add test suite for cleanVerb and cleanContentType
* Properly validate that the content-type and charset (if applicable) are RFC compliant
* add additional test case
* truncate list of content-types
Change-Id: Ia5fe0d2e2c602e4def4b8e0849cc19f3f9251818
Kubernetes-commit: 6c588c3f441252f42fd37526297ed92d1e1f3acf
Currently we record request metrics during the normal request flow and
we also manually invoke `Record` in the timeout handler to record
timeouts. This means that we effectively double count whenever we
timeout. This PR renames the `Record` function to `RecordRequestError`
to more accurately reflect the intended side-effect of the function
call.
Change-Id: Ie37fd0c1e501bd525640a434433d364a5fd6dde2
Kubernetes-commit: 4c6e7247878477a1f2efc26df7f141258010374f
ReplaceAllStrings always allocates, while scanning a relatively short
regex twice is slightly more CPU immediately but less later.
```
BenchmarkGet-12 100000 108824 ns/op 17818 B/op 152 allocs/op
BenchmarkGet-12 100000 108013 ns/op 17732 B/op 149 allocs/op
```
Kubernetes-commit: 83c41eab1d6f55c9ccf61744bfc345c95d3a0664
Removed automatic registration with `init` funciton and use `Register` function
to register metrics for etcd storage only when requested.
Kubernetes-commit: 40cf7880135b56e2d88a04d5fce08303b249eb34
Since we have a custom handler for apiextensions-apiserver,
we need to record the metrics here.
Kubernetes-commit: 74cd45fb21b349dd037e3bfd844459ca5834cca1
Allows a caller to know how many exec, log, proxy, and watch calls are
running at the current moment.
Kubernetes-commit: fabce1b893f96bdf466c1fdb1fcf825210c008ae
Remove the MonitorRequest method and replace with a method that takes
request.RequestInfo, which is our default way to talk about API objects.
Preserves existing semantics for calls.
Kubernetes-commit: 10e6dc5ed3573118c56fa8823b387e47c8e8ae06
Subresources are very often completely different code paths and errors
generated on those code paths are important to distinguish.
Kubernetes-commit: ad431c454c1306fdcc2134a3626444984d350f46
enisoc pointed out how ToLower can change (lengthen even!) the length of
a string given arbitrary input.
Kubernetes-commit: fe202fcfc47c7e0fa7d75dc933c9988bb5a53e5e
This commit cleans common browser user-agents to reduce the metrics
cardinality in exported prometheus metrics.
Kubernetes-commit: b5c89a8be68e031e12d6750ed6cc470de4cc3fdf
Mike Spreitzer
Jordan Liggitt
Li Bo
Han Kang
danielqsj
RainbowMango
wojtekt
Maciej Borsz
Clayton Coleman
jennybuckley
Md. Emruz Hossain
Dr. Stefan Schimanski
Wang Guoliang
Martin Vladev
Di Xu
Nikhita Raghunath
halfcrazy
Marek Grabowski
hzxuzhonghu
Kubernetes Publisher
Shyam Jeedigunta
Matt Liggett
Dominik Schulz
deads2k