[New Scheduler] Manage memory queues in scheduler

ansible/group_vars/all

@@ -465,5 +465,9 @@ etcd_connect_string: "{% set ret = [] %}\
 
 scheduler:
   protocol: "{{ scheduler_protocol | default('http') }}"
+  maxPeek: "{{ scheduler_max_peek | default(128) }}"
+  queueManager:
+    maxSchedulingTime: "{{ scheduler_maxSchedulingTime | default('20 second') }}"
+    maxRetriesToGetQueue: "{{ scheduler_maxRetriesToGetQueue | default(13) }}"
   dataManagementService:
     retryInterval: "{{ scheduler_dataManagementService_retryInterval | default('1 second') }}"

common/scala/src/main/scala/org/apache/openwhisk/common/Logging.scala

@@ -562,9 +562,17 @@ object LoggingMarkers {
 
   // Time that is needed to produce message in kafka
   val SCHEDULER_KAFKA = LogMarkerToken(scheduler, kafka, start)(MeasurementUnit.time.milliseconds)
+  val SCHEDULER_WAIT_TIME =
+    LogMarkerToken(scheduler, "waitTime", counter)(MeasurementUnit.none)
 
   def SCHEDULER_KEEP_ALIVE(leaseId: Long) =
     LogMarkerToken(scheduler, "keepAlive", counter, None, Map("leaseId" -> leaseId.toString))(MeasurementUnit.none)
+  def SCHEDULER_QUEUE = LogMarkerToken(scheduler, "queue", counter)(MeasurementUnit.none)
+  def SCHEDULER_QUEUE_CREATE = LogMarkerToken(scheduler, "queueCreate", start)(MeasurementUnit.time.milliseconds)
+  def SCHEDULER_QUEUE_UPDATE(reason: String) =
+    LogMarkerToken(scheduler, "queueUpdate", counter, None, Map("reason" -> reason))(MeasurementUnit.none)
+  def SCHEDULER_QUEUE_WAITING_ACTIVATION(action: String) =
+    LogMarkerToken(scheduler, "queueActivation", counter, Some(action), Map("action" -> action))(MeasurementUnit.none)
   /*
    * General markers
    */

common/scala/src/main/scala/org/apache/openwhisk/core/WhiskConfig.scala

@@ -296,6 +296,7 @@ object ConfigKeys {
   val azBlob = "whisk.azure-blob"
 
   val schedulerMaxPeek = "whisk.scheduler.max-peek"
+  val schedulerQueueManager = "whisk.scheduler.queue-manager"
   val schedulerInProgressJobRetentionSecond = "whisk.scheduler.in-progress-job-retention"
 
   val whiskClusterName = "whisk.cluster.name"

common/scala/src/main/scala/org/apache/openwhisk/core/connector/Message.scala

@@ -60,7 +60,7 @@ case class ActivationMessage(override val transid: TransactionId,
                              lockedArgs: Map[String, String] = Map.empty,
                              cause: Option[ActivationId] = None,
                              traceContext: Option[Map[String, String]] = None)
-  extends Message {
+    extends Message {
 
   override def serialize = ActivationMessage.serdes.write(this).compactPrint
 
@@ -116,11 +116,11 @@ abstract class AcknowledegmentMessage(private val tid: TransactionId) extends Me
  * The constructor is private so that callers must use the more restrictive constructors which ensure the respose is always
  * Right when this message is created.
  */
-case class CombinedCompletionAndResultMessage private(override val transid: TransactionId,
-                                                      response: Either[ActivationId, WhiskActivation],
-                                                      override val isSystemError: Option[Boolean],
-                                                      instance: InstanceId)
-  extends AcknowledegmentMessage(transid) {
+case class CombinedCompletionAndResultMessage private (override val transid: TransactionId,
+                                                       response: Either[ActivationId, WhiskActivation],
+                                                       override val isSystemError: Option[Boolean],
+                                                       instance: InstanceId)
+    extends AcknowledegmentMessage(transid) {
   override def messageType = "combined"
 
   override def result = Some(response)
@@ -142,11 +142,11 @@ case class CombinedCompletionAndResultMessage private(override val transid: Tran
  * phase notification to the load balancer where an invoker first sends a `ResultMessage` and later sends the
  * `CompletionMessage`.
  */
-case class CompletionMessage private(override val transid: TransactionId,
-                                     override val activationId: ActivationId,
-                                     override val isSystemError: Option[Boolean],
-                                     instance: InstanceId)
-  extends AcknowledegmentMessage(transid) {
+case class CompletionMessage private (override val transid: TransactionId,
+                                      override val activationId: ActivationId,
+                                      override val isSystemError: Option[Boolean],
+                                      instance: InstanceId)
+    extends AcknowledegmentMessage(transid) {
   override def messageType = "completion"
 
   override def result = None
@@ -168,8 +168,8 @@ case class CompletionMessage private(override val transid: TransactionId,
  * The constructor is private so that callers must use the more restrictive constructors which ensure the respose is always
  * Right when this message is created.
  */
-case class ResultMessage private(override val transid: TransactionId, response: Either[ActivationId, WhiskActivation])
-  extends AcknowledegmentMessage(transid) {
+case class ResultMessage private (override val transid: TransactionId, response: Either[ActivationId, WhiskActivation])
+    extends AcknowledegmentMessage(transid) {
   override def messageType = "result"
 
   override def result = Some(response)
@@ -253,7 +253,7 @@ object AcknowledegmentMessage extends DefaultJsonProtocol {
         Left(value.convertTo[ActivationId])
 
       case _: JsObject => Right(value.convertTo[WhiskActivation])
-      case _ => deserializationError("could not read ResultMessage")
+      case _           => deserializationError("could not read ResultMessage")
     }
   }
 
@@ -296,7 +296,7 @@ object EventMessageBody extends DefaultJsonProtocol {
 
   implicit val format = new JsonFormat[EventMessageBody] {
     def write(eventMessageBody: EventMessageBody) = eventMessageBody match {
-      case m: Metric => m.toJson
+      case m: Metric     => m.toJson
       case a: Activation => a.toJson
     }
 
@@ -321,7 +321,7 @@ case class Activation(name: String,
                       causedBy: Option[String],
                       size: Option[Int] = None,
                       userDefinedStatusCode: Option[Int] = None)
-  extends EventMessageBody {
+    extends EventMessageBody {
   val typeName = Activation.typeName
 
   override def serialize = toJson.compactPrint
@@ -349,12 +349,12 @@ object Activation extends DefaultJsonProtocol {
   private implicit val durationFormat = new RootJsonFormat[Duration] {
     override def write(obj: Duration): JsValue = obj match {
       case o if o.isFinite => JsNumber(o.toMillis)
-      case _ => JsNumber.zero
+      case _               => JsNumber.zero
     }
 
     override def read(json: JsValue): Duration = json match {
       case JsNumber(n) if n <= 0 => Duration.Zero
-      case JsNumber(n) => toDuration(n.longValue)
+      case JsNumber(n)           => toDuration(n.longValue)
     }
   }
 
@@ -437,7 +437,7 @@ case class EventMessage(source: String,
                         userId: UUID,
                         eventType: String,
                         timestamp: Long = System.currentTimeMillis())
-  extends Message {
+    extends Message {
   override def serialize = EventMessage.format.write(this).compactPrint
 }
 
@@ -460,7 +460,7 @@ case class InvokerResourceMessage(status: String,
                                   inProgressMemory: Long,
                                   tags: Seq[String],
                                   dedicatedNamespaces: Seq[String])
-  extends Message {
+    extends Message {
 
   /**
    * Serializes message to string. Must be idempotent.
@@ -502,7 +502,7 @@ object InvokerResourceMessage extends DefaultJsonProtocol {
 object StatusQuery
 
 case class StatusData(invocationNamespace: String, fqn: String, waitingActivation: Int, status: String, data: String)
-  extends Message {
+    extends Message {
 
   override def serialize: String = StatusData.serdes.write(this).compactPrint
 
@@ -524,7 +524,7 @@ case class ContainerCreationMessage(override val transid: TransactionId,
                                     rpcPort: Int,
                                     retryCount: Int = 0,
                                     creationId: CreationId = CreationId.generate())
-  extends ContainerMessage(transid) {
+    extends ContainerMessage(transid) {
 
   override def toJson: JsValue = ContainerCreationMessage.serdes.write(this)
 
@@ -556,7 +556,7 @@ case class ContainerDeletionMessage(override val transid: TransactionId,
                                     action: FullyQualifiedEntityName,
                                     revision: DocRevision,
                                     whiskActionMetaData: WhiskActionMetaData)
-  extends ContainerMessage(transid) {
+    extends ContainerMessage(transid) {
   override def toJson: JsValue = ContainerDeletionMessage.serdes.write(this)
 
   override def serialize: String = toJson.compactPrint
@@ -640,17 +640,17 @@ object ContainerCreationError extends Enumeration {
       ZeroNamespaceLimit)
 
   private def parse(name: String) = name.toUpperCase match {
-    case "NOAVAILABLEINVOKERSERROR" => NoAvailableInvokersError
+    case "NOAVAILABLEINVOKERSERROR"         => NoAvailableInvokersError
     case "NOAVAILABLERESOURCEINVOKERSERROR" => NoAvailableResourceInvokersError
-    case "RESOURCENOTENOUGHERROR" => ResourceNotEnoughError
-    case "NONEXECUTBLEACTIONERROR" => NonExecutableActionError
-    case "DBFETCHERROR" => DBFetchError
-    case "WHISKERROR" => WhiskError
-    case "BLACKBOXERROR" => BlackBoxError
-    case "TIMEOUTERROR" => TimeoutError
-    case "ZERONAMESPACELIMIT" => ZeroNamespaceLimit
-    case "TOOMANYCONCURRENTREQUESTS" => TooManyConcurrentRequests
-    case "UNKNOWNERROR" => UnknownError
+    case "RESOURCENOTENOUGHERROR"           => ResourceNotEnoughError
+    case "NONEXECUTBLEACTIONERROR"          => NonExecutableActionError
+    case "DBFETCHERROR"                     => DBFetchError
+    case "WHISKERROR"                       => WhiskError
+    case "BLACKBOXERROR"                    => BlackBoxError
+    case "TIMEOUTERROR"                     => TimeoutError
+    case "ZERONAMESPACELIMIT"               => ZeroNamespaceLimit
+    case "TOOMANYCONCURRENTREQUESTS"        => TooManyConcurrentRequests
+    case "UNKNOWNERROR"                     => UnknownError
   }
 
   implicit val serds = new RootJsonFormat[ContainerCreationError] {
@@ -678,7 +678,7 @@ case class ContainerCreationAckMessage(override val transid: TransactionId,
                                        retryCount: Int = 0,
                                        error: Option[ContainerCreationError] = None,
                                        reason: Option[String] = None)
-  extends Message {
+    extends Message {
 
   /**
    * Serializes message to string. Must be idempotent.

common/scala/src/main/scala/org/apache/openwhisk/core/entity/Size.scala

@@ -123,15 +123,15 @@ case class ByteSize(size: Long, unit: SizeUnits.Unit) extends Ordered[ByteSize]
 
   override def equals(that: Any): Boolean = that match {
     case t: ByteSize => compareTo(t) == 0
-    case _ => false
+    case _           => false
   }
 
   override def toString = {
     unit match {
       case SizeUnits.BYTE => s"$size B"
-      case SizeUnits.KB => s"$size KB"
-      case SizeUnits.MB => s"$size MB"
-      case SizeUnits.GB => s"$size GB"
+      case SizeUnits.KB   => s"$size KB"
+      case SizeUnits.MB   => s"$size MB"
+      case SizeUnits.GB   => s"$size GB"
     }
   }
 }
@@ -190,7 +190,7 @@ object size {
 
     def read(value: JsValue): ByteSize = value match {
       case JsString(s) => ByteSize.fromString(s)
-      case _ => deserializationError(formatError)
+      case _           => deserializationError(formatError)
     }
   }
 }

core/scheduler/src/main/resources/application.conf

@@ -27,6 +27,11 @@ whisk {
   }
 
   scheduler {
+    queue-manager {
+      max-scheduling-time = "20 seconds"
+      max-retries-to-get-queue = "13"
+    }
+    max-peek = "128"
     in-progress-job-retention = "20 seconds"
   }
 }

core/scheduler/src/main/scala/org/apache/openwhisk/core/scheduler/queue/MemoryQueue.scala

@@ -0,0 +1,35 @@
+/*
+ * 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.openwhisk.core.scheduler.queue
+
+import org.apache.openwhisk.core.connector.ActivationMessage
+import org.apache.openwhisk.core.entity.{DocInfo, FullyQualifiedEntityName}
+
+import scala.concurrent.Promise
+
+// Events sent by the actor
+case class QueueRemoved(invocationNamespace: String, action: DocInfo, leaderKey: Option[String])
+case class QueueReactivated(invocationNamespace: String, action: FullyQualifiedEntityName, docInfo: DocInfo)
+case class CancelPoll(promise: Promise[Either[MemoryQueueError, ActivationMessage]])
+case object QueueRemovedCompleted
+case object FlushPulse
+
+// Events received by the actor
+case object Start
+case object VersionUpdated
+case object StopSchedulingAsOutdated