Adjust user memory via api

ansible/group_vars/all

@@ -105,6 +105,8 @@ controller:
   authentication:
     spi: "{{ controller_authentication_spi | default('') }}"
   loglevel: "{{ controller_loglevel | default(whisk_loglevel) | default('INFO') }}"
+  username: "{{ controller_username | default('controller.user') }}"
+  password: "{{ controller_password | default('controller.pass') }}"
   entitlement:
     spi: "{{ controller_entitlement_spi | default('') }}"
   protocol: "{{ controller_protocol | default('https') }}"

ansible/roles/controller/tasks/deploy.yml

@@ -203,6 +203,9 @@
       "CONFIG_whisk_db_activationsFilterDdoc": "{{ db_whisk_activations_filter_ddoc | default() }}"
       "CONFIG_whisk_userEvents_enabled": "{{ user_events | default(false) | lower }}"
 
+      "CONFIG_whisk_credentials_controller_username": "{{ controller.username }}"
+      "CONFIG_whisk_credentials_controller_password": "{{ controller.password }}"
+
       "LIMITS_ACTIONS_INVOKES_PERMINUTE": "{{ limits.invocationsPerMinute }}"
       "LIMITS_ACTIONS_INVOKES_CONCURRENT": "{{ limits.concurrentInvocations }}"
       "LIMITS_TRIGGERS_FIRES_PERMINUTE": "{{ limits.firesPerMinute }}"

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

@@ -0,0 +1,20 @@
+/*
+ * 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.common
+
+case class ControllerCredentials(username: String, password: String)

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

@@ -275,4 +275,6 @@ object ConfigKeys {
   val parameterStorage = "whisk.parameter-storage"
 
   val azBlob = "whisk.azure-blob"
+
+  val controllerCredentials = "whisk.credentials.controller"
 }

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

@@ -426,3 +426,22 @@ object EventMessage extends DefaultJsonProtocol {
 
   def parse(msg: String) = Try(format.read(msg.parseJson))
 }
+
+case class ByteSizeMessage(userMemory: ByteSize) extends Message {
+  override def serialize = ByteSizeMessage.serdes.write(this).compactPrint
+}
+
+object ByteSizeMessage extends DefaultJsonProtocol {
+  implicit val serdes = new RootJsonFormat[ByteSizeMessage] {
+    override def write(message: ByteSizeMessage): JsValue = {
+      JsObject("userMemory" -> JsString(message.userMemory.toString))
+    }
+
+    override def read(json: JsValue): ByteSizeMessage = {
+      val userMemory = fromField[String](json, "userMemory")
+      new ByteSizeMessage(ByteSize.fromString(userMemory))
+    }
+  }
+
+  def parse(msg: String) = Try(serdes.read(msg.parseJson))
+}

core/controller/src/main/scala/org/apache/openwhisk/core/controller/Controller.scala

@@ -22,7 +22,8 @@ import akka.actor.{ActorSystem, CoordinatedShutdown}
 import akka.event.Logging.InfoLevel
 import akka.http.scaladsl.marshallers.sprayjson.SprayJsonSupport._
 import akka.http.scaladsl.model.StatusCodes._
-import akka.http.scaladsl.model.Uri
+import akka.http.scaladsl.model.{StatusCodes, Uri}
+import akka.http.scaladsl.model.headers.BasicHttpCredentials
 import akka.http.scaladsl.server.Route
 import akka.stream.ActorMaterializer
 import kamon.Kamon
@@ -31,9 +32,16 @@ import pureconfig.generic.auto._
 import spray.json.DefaultJsonProtocol._
 import spray.json._
 import org.apache.openwhisk.common.Https.HttpsConfig
-import org.apache.openwhisk.common.{AkkaLogging, ConfigMXBean, Logging, LoggingMarkers, TransactionId}
-import org.apache.openwhisk.core.WhiskConfig
-import org.apache.openwhisk.core.connector.MessagingProvider
+import org.apache.openwhisk.common.{
+  AkkaLogging,
+  ConfigMXBean,
+  ControllerCredentials,
+  Logging,
+  LoggingMarkers,
+  TransactionId
+}
+import org.apache.openwhisk.core.{ConfigKeys, WhiskConfig}
+import org.apache.openwhisk.core.connector.{ByteSizeMessage, MessagingProvider}
 import org.apache.openwhisk.core.containerpool.logging.LogStoreProvider
 import org.apache.openwhisk.core.database.{ActivationStoreProvider, CacheChangeNotification, RemoteCacheInvalidation}
 import org.apache.openwhisk.core.entitlement._
@@ -97,7 +105,7 @@ class Controller(val instance: ControllerInstanceId,
       (pathEndOrSingleSlash & get) {
         complete(info)
       }
-    } ~ apiV1.routes ~ swagger.swaggerRoutes ~ internalInvokerHealth
+    } ~ apiV1.routes ~ swagger.swaggerRoutes ~ internalInvokerHealth ~ configMemory
   }
 
   // initialize datastores
@@ -176,6 +184,63 @@ class Controller(val instance: ControllerInstanceId,
     LogLimit.config,
     runtimes,
     List(apiV1.basepath()))
+
+  private val controllerCredentials = loadConfigOrThrow[ControllerCredentials](ConfigKeys.controllerCredentials)
+
+  /**
+   * config user memory of ContainerPool
+   */
+  private val configMemory = {
+    implicit val executionContext = actorSystem.dispatcher
+    (path("config" / "memory") & post) {
+      extractCredentials {
+        case Some(BasicHttpCredentials(username, password)) =>
+          if (username == controllerCredentials.username && password == controllerCredentials.password) {
+            entity(as[String]) { memory =>
+              try {
+                val userMemoryMessage = ByteSizeMessage(ByteSize.fromString(memory))
+                if (userMemoryMessage.userMemory.size == 0) {
+                  complete(StatusCodes.BadRequest, "user memory must be positive")
+                } else {
+                  parameter('limit.?) { limit =>
+                    limit match {
+                      case Some(targetValue) =>
+                        val pattern = """\d+:\d"""
+                        if (targetValue.matches(pattern)) {
+                          val invokerArray = targetValue.split(":")
+                          val beginIndex = invokerArray(0).toInt
+                          val finishIndex = invokerArray(1).toInt
+                          if (finishIndex < beginIndex) {
+                            complete(StatusCodes.BadRequest, "finishIndex can't be less than beginIndex")
+                          } else {
+                            val targetInvokers = (beginIndex to finishIndex).toList
+                            loadBalancer.sendUserMemoryToInvokers(userMemoryMessage, Some(targetInvokers))
+                            logging.info(this, "config user memory request is already sent to target invokers")
+                            complete(StatusCodes.Accepted)
+                          }
+                        } else {
+                          complete(StatusCodes.BadRequest, "limit value can't match [beginIndex:finishIndex]")
+                        }
+                      case None =>
+                        loadBalancer.sendUserMemoryToInvokers(userMemoryMessage, None)
+                        logging.info(this, "config user memory request is already sent to all invokers")
+                        complete(StatusCodes.Accepted)
+                    }
+                  }
+                }
+              } catch {
+                case ex: IllegalArgumentException =>
+                  logging.info(this, s"error message: ${ex.getMessage}")
+                  complete(StatusCodes.BadRequest, ex.getMessage)
+              }
+            }
+          } else {
+            complete(StatusCodes.Unauthorized, "username or password is wrong")
+          }
+        case _ => complete(StatusCodes.Unauthorized)
+      }
+    }
+  }
 }
 
 /**

core/controller/src/main/scala/org/apache/openwhisk/core/loadBalancer/LoadBalancer.scala

@@ -60,6 +60,14 @@ trait LoadBalancer {
   def publish(action: ExecutableWhiskActionMetaData, msg: ActivationMessage)(
     implicit transid: TransactionId): Future[Future[Either[ActivationId, WhiskActivation]]]
 
+  /**
+   * send user memory to invokers
+   *
+   * @param userMemory
+   * @param targetInvokers
+   */
+  def sendUserMemoryToInvokers(userMemoryMessage: ByteSizeMessage, targetInvokers: Option[List[Int]]): Unit = {}
+
   /**
    * Returns a message indicating the health of the containers and/or container pool in general.
    *

core/controller/src/main/scala/org/apache/openwhisk/core/loadBalancer/ShardingContainerPoolBalancer.scala

@@ -43,6 +43,7 @@ import org.apache.openwhisk.spi.SpiLoader
 import scala.annotation.tailrec
 import scala.concurrent.Future
 import scala.concurrent.duration.FiniteDuration
+import scala.util.{Failure, Success}
 
 /**
  * A loadbalancer that schedules workload based on a hashing-algorithm.
@@ -316,6 +317,21 @@ class ShardingContainerPoolBalancer(
       }
   }
 
+  /** send user memory to invokers */
+  override def sendUserMemoryToInvokers(userMemoryMessage: ByteSizeMessage, targetInvokers: Option[List[Int]]): Unit = {
+    schedulingState.invokers.filter { invoker =>
+      targetInvokers.getOrElse(schedulingState.invokers.map(_.id.instance)).contains(invoker.id.instance)
+    } foreach { invokerHealth =>
+      val topic = s"invoker${invokerHealth.id.toInt}"
+      messageProducer.send(topic, userMemoryMessage).andThen {
+        case Success(_) =>
+          logging.info(this, s"successfully posted user memory configuration to topic $topic")
+        case Failure(_) =>
+          logging.error(this, s"failed posted user memory configuration to topic $topic")
+      }
+    }
+  }
+
   override val invokerPool =
     invokerPoolFactory.createInvokerPool(
       actorSystem,

core/invoker/src/main/scala/org/apache/openwhisk/core/containerpool/ContainerPool.scala

@@ -19,7 +19,7 @@ package org.apache.openwhisk.core.containerpool
 
 import akka.actor.{Actor, ActorRef, ActorRefFactory, Props}
 import org.apache.openwhisk.common.{Logging, LoggingMarkers, MetricEmitter, TransactionId}
-import org.apache.openwhisk.core.connector.MessageFeed
+import org.apache.openwhisk.core.connector.{ByteSizeMessage, MessageFeed}
 import org.apache.openwhisk.core.entity.ExecManifest.ReactivePrewarmingConfig
 import org.apache.openwhisk.core.entity._
 import org.apache.openwhisk.core.entity.size._
@@ -37,6 +37,8 @@ case class ColdStartKey(kind: String, memory: ByteSize)
 
 case class WorkerData(data: ContainerData, state: WorkerState)
 
+object UserMemoryQuery
+
 case object EmitMetrics
 
 case object AdjustPrewarmedContainer
@@ -74,6 +76,7 @@ class ContainerPool(childFactory: ActorRefFactory => ActorRef,
   var busyPool = immutable.Map.empty[ActorRef, ContainerData]
   var prewarmedPool = immutable.Map.empty[ActorRef, PreWarmedData]
   var prewarmStartingPool = immutable.Map.empty[ActorRef, (String, ByteSize)]
+  var latestUserMemory = poolConfig.userMemory
   // If all memory slots are occupied and if there is currently no container to be removed, than the actions will be
   // buffered here to keep order of computation.
   // Otherwise actions with small memory-limits could block actions with large memory limits.
@@ -216,7 +219,7 @@ class ContainerPool(childFactory: ActorRefFactory => ActorRef,
                 s"Rescheduling Run message, too many message in the pool, " +
                   s"freePoolSize: ${freePool.size} containers and ${memoryConsumptionOf(freePool)} MB, " +
                   s"busyPoolSize: ${busyPool.size} containers and ${memoryConsumptionOf(busyPool)} MB, " +
-                  s"maxContainersMemory ${poolConfig.userMemory.toMB} MB, " +
+                  s"maxContainersMemory ${latestUserMemory.toMB} MB, " +
                   s"userNamespace: ${r.msg.user.namespace.name}, action: ${r.action}, " +
                   s"needed memory: ${r.action.limits.memory.megabytes} MB, " +
                   s"waiting messages: ${runBuffer.size}")(r.msg.transid)
@@ -302,6 +305,13 @@ class ContainerPool(childFactory: ActorRefFactory => ActorRef,
     case RescheduleJob =>
       freePool = freePool - sender()
       busyPool = busyPool - sender()
+    case message: ByteSizeMessage =>
+      logging.info(
+        this,
+        s"user memory is reconfigured from ${latestUserMemory.toString} to ${message.userMemory.toString}")
+      latestUserMemory = message.userMemory
+    case UserMemoryQuery =>
+      sender() ! latestUserMemory.toString
     case EmitMetrics =>
       emitMetrics()
 
@@ -441,7 +451,7 @@ class ContainerPool(childFactory: ActorRefFactory => ActorRef,
    * @return true, if there is enough space for the given amount of memory.
    */
   def hasPoolSpaceFor[A](pool: Map[A, ContainerData], memory: ByteSize): Boolean = {
-    memoryConsumptionOf(pool) + memory.toMB <= poolConfig.userMemory.toMB
+    memoryConsumptionOf(pool) + memory.toMB <= latestUserMemory.toMB
   }
 
   /**

core/invoker/src/main/scala/org/apache/openwhisk/core/invoker/DefaultInvokerServer.scala

@@ -0,0 +1,49 @@
+/*
+ * 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.invoker
+
+import akka.actor.ActorSystem
+import akka.http.scaladsl.server.Route
+import org.apache.openwhisk.common.{Logging, TransactionId}
+
+import org.apache.openwhisk.http.BasicRasService
+
+import scala.concurrent.ExecutionContext
+
+/**
+ * Implements web server to handle certain REST API calls.
+ */
+class DefaultInvokerServer(val invoker: InvokerCore)(implicit val ec: ExecutionContext,
+                                                     val actorSystem: ActorSystem,
+                                                     val logger: Logging)
+    extends BasicRasService {
+
+  override def routes(implicit transid: TransactionId): Route = {
+    super.routes ~ {
+      (path("config" / "memory") & get) {
+        invoker.getUserMemory()
+      }
+    }
+  }
+}
+
+object DefaultInvokerServer extends InvokerServerProvider {
+  override def instance(
+    invoker: InvokerCore)(implicit ec: ExecutionContext, actorSystem: ActorSystem, logger: Logging): BasicRasService =
+    new DefaultInvokerServer(invoker)
+}

core/invoker/src/main/scala/org/apache/openwhisk/core/invoker/Invoker.scala

@@ -19,6 +19,7 @@ package org.apache.openwhisk.core.invoker
 
 import akka.Done
 import akka.actor.{ActorSystem, CoordinatedShutdown}
+import akka.http.scaladsl.server.Route
 import akka.stream.ActorMaterializer
 import com.typesafe.config.ConfigValueFactory
 import kamon.Kamon
@@ -210,7 +211,9 @@ trait InvokerProvider extends Spi {
 }
 
 // this trait can be used to add common implementation
-trait InvokerCore {}
+trait InvokerCore {
+  def getUserMemory(): Route
+}
 
 /**
  * An Spi for providing RestAPI implementation for invoker.
@@ -220,9 +223,3 @@ trait InvokerServerProvider extends Spi {
   def instance(
     invoker: InvokerCore)(implicit ec: ExecutionContext, actorSystem: ActorSystem, logger: Logging): BasicRasService
 }
-
-object DefaultInvokerServer extends InvokerServerProvider {
-  override def instance(
-    invoker: InvokerCore)(implicit ec: ExecutionContext, actorSystem: ActorSystem, logger: Logging): BasicRasService =
-    new BasicRasService {}
-}