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[FLINK-10253] Run MetricQueryService with lower priority
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38 changes: 38 additions & 0 deletions
38
flink-runtime/src/main/scala/akka/dispatch/PriorityThreadFactory.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| /* | ||
| * 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:https://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. | ||
| */ | ||
|
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| package akka.dispatch | ||
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| import java.util.concurrent.ThreadFactory | ||
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| /** | ||
| * Composition over the [[DispatcherPrerequisites.threadFactory]] that set priority | ||
| * for newly created threads. | ||
| * | ||
| * @param newThreadPriority priority that will be set to each newly created thread | ||
| * should be between Thread.MIN_PRIORITY and Thread.MAX_PRIORITY | ||
| */ | ||
| class PriorityThreadFactory( | ||
| prerequisites: DispatcherPrerequisites, | ||
| newThreadPriority: Int) extends ThreadFactory { | ||
| override def newThread(r: Runnable): Thread = { | ||
| val newThread = prerequisites.threadFactory.newThread(r) | ||
| newThread.setPriority(newThreadPriority) | ||
| newThread | ||
| } | ||
| } |
64 changes: 64 additions & 0 deletions
64
flink-runtime/src/main/scala/akka/dispatch/PriorityThreadsDispatcher.scala
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| /* | ||
| * 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:https://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. | ||
| */ | ||
|
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| package akka.dispatch | ||
|
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| import com.typesafe.config.Config | ||
|
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| /** | ||
| * Akka Dispatcher that creates thread with configurable priority. | ||
| * | ||
| * Example of configuration: | ||
| * | ||
| * low-priority-threads-dispatcher { | ||
| * type = akka.dispatch.PriorityThreadsDispatcher | ||
| * executor = "thread-pool-executor" | ||
| * # should be between Thread.MIN_PRIORITY (which is 1) and Thread.MAX_PRIORITY (which is 10) | ||
| * threads-priority = 1 | ||
| * thread-pool-executor { | ||
| * core-pool-size-min = 0 | ||
| * core-pool-size-factor = 2.0 | ||
| * core-pool-size-max = 10 | ||
| * } | ||
| * } | ||
| * | ||
| * Two arguments constructor (the primary constructor) is automatically called by Akka | ||
| * when it founds: | ||
| * abcde-dispatcher { | ||
| * type = akka.dispatch.PriorityThreadsDispatcher <-- the class that Akka will instantiate | ||
| * ... | ||
| * } | ||
| * | ||
| * @param config passed automatically by Akka, should contains information about threads priority | ||
| * @param prerequisites passed automatically by Akka | ||
| */ | ||
| class PriorityThreadsDispatcher(config: Config, prerequisites: DispatcherPrerequisites) | ||
| extends DispatcherConfigurator( | ||
| config, | ||
| new PriorityThreadsDispatcherPrerequisites( | ||
| prerequisites, | ||
| config.getInt(PriorityThreadsDispatcher.threadPriorityConfigKey) | ||
| ) | ||
| ) | ||
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| object PriorityThreadsDispatcher { | ||
| /** | ||
| * Configuration key under which int value should be placed. | ||
| */ | ||
| val threadPriorityConfigKey = "thread-priority" | ||
| } |
78 changes: 78 additions & 0 deletions
78
flink-runtime/src/main/scala/akka/dispatch/PriorityThreadsDispatcherPrerequisites.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| /* | ||
| * 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:https://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. | ||
| */ | ||
|
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| package akka.dispatch | ||
|
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| /** | ||
| * Composition over [[DefaultDispatcherPrerequisites]] that replaces thread factory with one that | ||
| * allow to configure thread priority. | ||
| * | ||
| * @param newThreadPriority priority that will be set to each newly created thread | ||
| * should be between Thread.MIN_PRIORITY and Thread.MAX_PRIORITY | ||
| */ | ||
| class PriorityThreadsDispatcherPrerequisites( | ||
| prerequisites: DispatcherPrerequisites, | ||
| newThreadPriority: Int) extends DispatcherPrerequisites { | ||
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| private val defaultDispatcherPrerequisites : DefaultDispatcherPrerequisites = | ||
| new DefaultDispatcherPrerequisites( | ||
| eventStream = prerequisites.eventStream, | ||
| scheduler = prerequisites.scheduler, | ||
| dynamicAccess = prerequisites.dynamicAccess, | ||
| settings = prerequisites.settings, | ||
| mailboxes = prerequisites.mailboxes, | ||
| defaultExecutionContext = prerequisites.defaultExecutionContext, | ||
| threadFactory = new PriorityThreadFactory(prerequisites, newThreadPriority) | ||
| ) | ||
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| override def threadFactory : java.util.concurrent.ThreadFactory = { | ||
| defaultDispatcherPrerequisites.threadFactory | ||
| } | ||
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| override def eventStream : akka.event.EventStream = { | ||
| defaultDispatcherPrerequisites.eventStream | ||
| } | ||
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| override def scheduler : akka.actor.Scheduler = { | ||
| defaultDispatcherPrerequisites.scheduler | ||
| } | ||
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| override def dynamicAccess : akka.actor.DynamicAccess = { | ||
| defaultDispatcherPrerequisites.dynamicAccess | ||
| } | ||
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| override def settings : akka.actor.ActorSystem.Settings = { | ||
| defaultDispatcherPrerequisites.settings | ||
| } | ||
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| override def mailboxes : akka.dispatch.Mailboxes = { | ||
| defaultDispatcherPrerequisites.mailboxes | ||
| } | ||
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| override def defaultExecutionContext : scala.Option[scala.concurrent.ExecutionContext] = { | ||
| defaultDispatcherPrerequisites.defaultExecutionContext | ||
| } | ||
| } | ||
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| object PriorityThreadsDispatcherPrerequisites { | ||
| def apply(prerequisites: DispatcherPrerequisites, newThreadPriority: Int): | ||
| PriorityThreadsDispatcherPrerequisites = | ||
| new PriorityThreadsDispatcherPrerequisites(prerequisites, newThreadPriority) | ||
| } | ||
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