! all: refactor the core metric recording instruments and accomodate UserMetrics #43
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Looks Really Good To Me!!!!!! |
…UserMetrics
This PR is including several changes to the kamon-core, most notably:
- Formalize the interface for Histograms, Counters and MinMaxCounters. Making sure
that the interfaces are as clean as possible.
- Move away from the all Vector[Measurement] based Histogram snapshot to a new approach
in which we use a single long to store both the index in the counts array and the
frequency on that bucket. The leftmost 2 bytes of each long are used for storing the
counts array index and the remaining 6 bytes are used for the actual count, and
everything is put into a simple long array. This way only the buckets that actually
have values will be included in the snapshot with the smallest possible memory
footprint.
- Introduce Gauges.
- Reorganize the instrumentation for Akka and Scala and rewrite most of the tests
of this components to avoid going through the subscription protocol to test.
- Introduce trace tests and fixes on various tests.
- Necessary changes on new relic, datadog and statsd modules to compile with the new
codebase.
Pending:
- Finish the upgrade of the new relic to the current model.
- Introduce proper limit checks for histograms to ensure that we never pass the 2/6 bytes
limits.
- More testing, more testing, more testing.
- Create the KamonStandalone module.
ivantopo
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Mar 29, 2020
* up libraries * tag http.status_code as metric * added supporting for StandaloneWSClient * added supporting for StandaloneWSClient * fixed double metrics collection. Because WSClient use underlying StandaloneWSClient * fixed sbt settings * return previous build.sbt * return previous build.sbt * up dependencies * don't tag http.status_code as metric * up javaagent * up sbt * remove scala 2.10 supporting * fixed compilation errors for ForkOptions types * fixed akka-http dependency
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This PR is including several changes to the kamon-core, most notably:
that the interfaces are as clean as possible.
in which we use a single long to store both the index in the counts array and the
frequency on that bucket. The leftmost 2 bytes of each long are used for storing the
counts array index and the remaining 6 bytes are used for the actual count, and
everything is put into a simple long array. This way only the buckets that actually
have values will be included in the snapshot with the smallest possible memory
footprint.
of this components to avoid going through the subscription protocol to test.
codebase.
Pending:
limits.
I think that we still have a lot to do over this, but it is time to move it to master and start building on top of it.