{"action":"created","comment":{"url":"https://api.github.com/repos/akka/akka/pulls/comments/22662926","id":22662926,"diff_hunk":"@@ -0,0 +1,88 @@\n+/**\n+ * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>\n+ */\n+package akka.cluster.metrics\n+\n+import akka.actor.ExtendedActorSystem\n+import akka.actor.Extension\n+import akka.actor.SupervisorStrategy\n+import akka.event.LoggingAdapter\n+import akka.event.Logging\n+import com.typesafe.config.Config\n+import scala.collection.immutable\n+import akka.actor.Props\n+import akka.actor.Deploy\n+import akka.actor.ExtensionId\n+import akka.actor.ExtensionIdProvider\n+import akka.actor.ActorSystem\n+import akka.actor.ActorRef\n+\n+/**\n+ * Cluster metrics extension.\n+ *\n+ * Cluster metrics is primarily for load-balancing of nodes. It controls metrics sampling\n+ * at a regular frequency, prepares highly variable data for further analysis by other entities,\n+ * and publishes the latest cluster metrics data around the node ring and local eventStream\n+ * to assist in determining the need to redirect traffic to the least-loaded nodes.\n+ *\n+ * Metrics sampling is delegated to the [[MetricsCollector]].\n+ *\n+ * Smoothing of the data for each monitored process is delegated to the\n+ * [[EWMA]] for exponential weighted moving average.\n+ */\n+class ClusterMetricsExtension(system: ExtendedActorSystem) extends Extension {\n+\n+  private val log: LoggingAdapter = Logging(system, getClass.getName)","path":"akka-cluster-metrics/src/main/scala/akka/cluster/metrics/ClusterMetricsExtension.scala","position":null,"original_position":35,"commit_id":"b2f85fb424c61c5b4e70bf32027bf50656fb8262","original_commit_id":"26483f0b313ecb85c40a7550974937688fd4fea3","user":{"login":"Andrei-Pozolotin","id":1622151,"avatar_url":"https://avatars.githubusercontent.com/u/1622151?v=3","gravatar_id":"","url":"https://api.github.com/users/Andrei-Pozolotin","html_url":"https://github.com/Andrei-Pozolotin","followers_url":"https://api.github.com/users/Andrei-Pozolotin/followers","following_url":"https://api.github.com/users/Andrei-Pozolotin/following{/other_user}","gists_url":"https://api.github.com/users/Andrei-Pozolotin/gists{/gist_id}","starred_url":"https://api.github.com/users/Andrei-Pozolotin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Andrei-Pozolotin/subscriptions","organizations_url":"https://api.github.com/users/Andrei-Pozolotin/orgs","repos_url":"https://api.github.com/users/Andrei-Pozolotin/repos","events_url":"https://api.github.com/users/Andrei-Pozolotin/events{/privacy}","received_events_url":"https://api.github.com/users/Andrei-Pozolotin/received_events","type":"User","site_admin":false},"body":"applied","created_at":"2015-01-08T16:41:02Z","updated_at":"2015-01-08T16:41:02Z","html_url":"https://github.com/akka/akka/pull/16475#discussion_r22662926","pull_request_url":"https://api.github.com/repos/akka/akka/pulls/16475","_links":{"self":{"href":"https://api.github.com/repos/akka/akka/pulls/comments/22662926"},"html":{"href":"https://github.com/akka/akka/pull/16475#discussion_r22662926"},"pull_request":{"href":"https://api.github.com/repos/akka/akka/pulls/16475"}}},"pull_request":{"url":"https://api.github.com/repos/akka/akka/pulls/16475","id":25641598,"html_url":"https://github.com/akka/akka/pull/16475","diff_url":"https://github.com/akka/akka/pull/16475.diff","patch_url":"https://github.com/akka/akka/pull/16475.patch","issue_url":"https://api.github.com/repos/akka/akka/issues/16475","number":16475,"state":"open","locked":false,"title":"+ akka-cluster-metrics: new akka 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akka module split from akka-cluster\r\n* provides sigar provisioning\r\n* resolve #16121\r\n* see 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