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

	Commit message (Collapse)	Author	Age	Files	Lines
*	+ core: introduce the new ↵	Ivan Topolnjak	2014-07-04	1	-7/+8
\| \| \| \|	kamon.metrics.default-collection-context-buffer-size setting
*	! all: refactor the core metric recording instruments and accomodate UserMetrics	Ivan Topolnjak	2014-07-03	3	-50/+53
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	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.
*	+ play: refactor in RequestInstrumentation in order to propagate the ↵	Diego	2014-06-16	1	-2/+1
\| \| \| \|	TraceContext through the filters and all actions in the incoming request
*	= datadog: force the decimal format to use dot (.) as decimal point	Diego	2014-06-12	1	-4/+9
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*	= core : fixes #38	Diego	2014-06-07	1	-6/+6
\| \| \| \|	* I've changed the way to get the Actorsystem inside of DispatcerTracing, passing the actorSystem across the Dispatchers and then to each Dispatcher in the same ActorSystem.
*	+ datadog: more tests and support for multiple metrics in the same package	Diego	2014-06-05	4	-34/+100
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*	+ datadog: include dispatchers metrics	Diego	2014-05-21	2	-2/+9
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*	+ datadog: include identification tags and clean up all irrelevant code from ↵	Ivan Topolnjak	2014-05-21	4	-131/+51
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*	+ core: allow dispatcher configuration to core components	Ivan Topolnjak	2014-05-18	1	-1/+2
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*	= datadog: fix processTags method	Diego	2014-05-14	1	-1/+4
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*	! datadog: first functional implementation of DatadogMetricsSender	Diego	2014-05-14	2	-43/+23
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*	+ datadog: added counter instument and test	Diego	2014-05-12	2	-5/+143
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*	! datadog: first commit of datadog integration module	Diego	2014-05-12	4	-0/+272