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AdaptiveLoadBalancingRouter and more refactoring of metrics, see #2547

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* Refactoring of standard metrics extractors and data structures
* Removed optional value in Metric, simplified a lot
* Configuration of EWMA by using half-life duration
* Renamed DataStream to EWMA
* Incorporate review feedback
* Use binarySearch for selecting weighted routees
* More metrics selectors for the router
* Removed network metrics, since not supported on linux
* Configuration of router
* Rename to AdaptiveLoadBalancingRouter
* Remove total cores metrics, since it's the same as jmx getAvailableProcessors,
  tested on intel 24 core server and amd 48 core server, and MBP
* API cleanup
* Java API additions
* Documentation of metrics and AdaptiveLoadBalancingRouter
* New cluster sample to illustrate metrics in the documentation,
  and play around with (factorial)
This commit is contained in:
Patrik Nordwall 2012-11-08 18:49:54 +01:00
parent c9d206764a
commit dcde7d3594
61 changed files with 1885 additions and 975 deletions
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7
akka-cluster/src/test/scala/akka/cluster/NodeMetricsSpec.scala
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@ -8,8 +8,7 @@ import akka.testkit.AkkaSpec
import akka.actor.Address
@org.junit.runner.RunWith(classOf[org.scalatest.junit.JUnitRunner])
class NodeMetricsSpec extends AkkaSpec with MetricSpec
with MetricsCollectorFactory {
class NodeMetricsSpec extends AkkaSpec with MetricsCollectorFactory {
val collector = createMetricsCollector
@ -27,11 +26,11 @@ class NodeMetricsSpec extends AkkaSpec with MetricSpec
}
"return correct result for 2 'same' nodes" in {
(NodeMetrics(node1, 0) same NodeMetrics(node1, 0)) must be(true)
(NodeMetrics(node1, 0) sameAs NodeMetrics(node1, 0)) must be(true)
}
"return correct result for 2 not 'same' nodes" in {
(NodeMetrics(node1, 0) same NodeMetrics(node2, 0)) must be(false)
(NodeMetrics(node1, 0) sameAs NodeMetrics(node2, 0)) must be(false)
}
"merge 2 NodeMetrics by most recent" in {