diff options
author | Ivan Topolnjak <ivantopo@gmail.com> | 2014-07-03 14:36:42 -0300 |
---|---|---|
committer | Ivan Topolnjak <ivantopo@gmail.com> | 2014-07-03 14:36:18 -0300 |
commit | 29068fc70a3e5a17a630c2c7fff951572bb5fa21 (patch) | |
tree | 7ec2632f36e9493cb559f510fa3cc3ead7443511 /kamon-core/src/test/scala/kamon/instrumentation/akka/ActorCellInstrumentationSpec.scala | |
parent | 4d5803e579e223c4f4f5cb37ab79ca069a007949 (diff) | |
download | Kamon-29068fc70a3e5a17a630c2c7fff951572bb5fa21.tar.gz Kamon-29068fc70a3e5a17a630c2c7fff951572bb5fa21.tar.bz2 Kamon-29068fc70a3e5a17a630c2c7fff951572bb5fa21.zip |
! all: refactor the core metric recording instruments and accomodate 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.
Diffstat (limited to 'kamon-core/src/test/scala/kamon/instrumentation/akka/ActorCellInstrumentationSpec.scala')
-rw-r--r-- | kamon-core/src/test/scala/kamon/instrumentation/akka/ActorCellInstrumentationSpec.scala | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/kamon-core/src/test/scala/kamon/instrumentation/akka/ActorCellInstrumentationSpec.scala b/kamon-core/src/test/scala/kamon/instrumentation/akka/ActorCellInstrumentationSpec.scala new file mode 100644 index 00000000..0f682500 --- /dev/null +++ b/kamon-core/src/test/scala/kamon/instrumentation/akka/ActorCellInstrumentationSpec.scala @@ -0,0 +1,87 @@ +/* =================================================== + * Copyright © 2013 the kamon project <http://kamon.io/> + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ========================================================== */ +package kamon.instrumentation.akka + +import akka.actor.{ Actor, ActorSystem, Props } +import akka.pattern.{ ask, pipe } +import akka.routing.RoundRobinPool +import akka.testkit.{ ImplicitSender, TestKit } +import akka.util.Timeout +import kamon.trace.TraceRecorder +import org.scalatest.WordSpecLike + +import scala.concurrent.duration._ + +class ActorCellInstrumentationSpec extends TestKit(ActorSystem("actor-cell-instrumentation-spec")) with WordSpecLike + with ImplicitSender { + + implicit val executionContext = system.dispatcher + + "the message passing instrumentation" should { + "propagate the TraceContext using bang" in new EchoActorFixture { + val testTraceContext = TraceRecorder.withNewTraceContext("bang-reply") { + ctxEchoActor ! "test" + TraceRecorder.currentContext + } + + expectMsg(testTraceContext) + } + + "propagate the TraceContext using tell" in new EchoActorFixture { + val testTraceContext = TraceRecorder.withNewTraceContext("tell-reply") { + ctxEchoActor.tell("test", testActor) + TraceRecorder.currentContext + } + + expectMsg(testTraceContext) + } + + "propagate the TraceContext using ask" in new EchoActorFixture { + implicit val timeout = Timeout(1 seconds) + val testTraceContext = TraceRecorder.withNewTraceContext("ask-reply") { + // The pipe pattern use Futures internally, so FutureTracing test should cover the underpinnings of it. + (ctxEchoActor ? "test") pipeTo (testActor) + TraceRecorder.currentContext + } + + expectMsg(testTraceContext) + } + + "propagate the TraceContext to actors behind a router" in new RoutedEchoActorFixture { + val testTraceContext = TraceRecorder.withNewTraceContext("router-reply") { + ctxEchoActor ! "test" + TraceRecorder.currentContext + } + + expectMsg(testTraceContext) + } + } + + trait EchoActorFixture { + val ctxEchoActor = system.actorOf(Props[TraceContextEcho]) + } + + trait RoutedEchoActorFixture extends EchoActorFixture { + override val ctxEchoActor = system.actorOf(Props[TraceContextEcho].withRouter(RoundRobinPool(nrOfInstances = 1))) + } +} + +class TraceContextEcho extends Actor { + def receive = { + case msg: String ⇒ sender ! TraceRecorder.currentContext + } +} + |