Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/7276#discussion_r34621433
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/ReceiverScheduler.scala
---
@@ -0,0 +1,108 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.spark.streaming.scheduler
+
+import scala.collection.mutable
+import scala.util.Random
+
+import org.apache.spark.streaming.scheduler.ReceiverState._
+
+private[streaming] case class ReceiverTrackingInfo(
+ receiverId: Int,
+ state: ReceiverState,
+ scheduledLocations: Option[Seq[String]],
+ runningLocation: Option[String])
+
+private[streaming] trait ReceiverScheduler {
--- End diff --
Another high level point. Now there are three things. ReceiverTracker,
ReceiverLauncher and ReceiverScheduler. Its super confusing to reason what does
what. I think I am inclined change the ReceiverScheduler name to
ReceiverSchedulingPolicy, so that it clear that its just a policy and not an
"active" module at the level of ReceiverTracker and ReceiverScheduling policy.
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