Kamon - Distributed Tracing, Metrics and Context Propagation for application running on the JVM

	Commit message (Collapse)	Author	Age	Files	Lines
*	wip, core/akka/spray are kind of migrated.	Ivan Topolnjak	2015-08-28	1	-15/+0
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*	! all: introduced support for metric tags.	Ivan Topolnjak	2015-03-09	1	-7/+7
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*	! all: Kamon now works as a single instance in a companion object.	Ivan Topolnjak	2015-02-13	1	-2/+3
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*	! all: improve the metric recorders infrastructure	Ivan Topolnjak	2015-01-24	1	-34/+31
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*	+ core: introduce an alternative way for tracing the Akka.ask timeouts	Diego	2014-12-13	1	-1/+1
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*	= core: force the tick buffer spec to use the .millis value of MilliTimestamp.	Ivan Topolnjak	2014-12-05	1	-4/+4
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*	= core,datadog,statsd: migrate from plain Long to MilliTimestamp.	Ivan Topolnjak	2014-12-05	1	-6/+6
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*	= core: ensure that no automatic metric flushes occur during certain tests	Ivan Topolnjak	2014-07-04	1	-0/+1
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*	+ core: introduce the new ↵	Ivan Topolnjak	2014-07-04	1	-1/+2
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*	! all: refactor the core metric recording instruments and accomodate UserMetrics	Ivan Topolnjak	2014-07-03	1	-0/+109
	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.