| /* |
| * 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.ignite.thread; |
| |
| import java.lang.Thread.UncaughtExceptionHandler; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.LinkedBlockingQueue; |
| import java.util.concurrent.RejectedExecutionException; |
| import java.util.concurrent.ThreadFactory; |
| import java.util.concurrent.TimeUnit; |
| import org.apache.ignite.internal.processors.metric.MetricRegistry; |
| import org.apache.ignite.internal.processors.pool.MetricsAwareExecutorService; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.jetbrains.annotations.NotNull; |
| |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.ACTIVE_COUNT_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.COMPLETED_TASK_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.CORE_SIZE_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.IS_SHUTDOWN_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.IS_TERMINATED_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.IS_TERMINATING_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.KEEP_ALIVE_TIME_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.LARGEST_SIZE_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.MAX_SIZE_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.POOL_SIZE_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.QUEUE_SIZE_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.REJ_HND_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.TASK_COUNT_DESC; |
| import static org.apache.ignite.internal.processors.pool.PoolProcessor.THRD_FACTORY_DESC; |
| |
| /** |
| * An {@link ExecutorService} that executes submitted tasks using pooled grid threads. |
| */ |
| public class IgniteStripedThreadPoolExecutor implements ExecutorService, MetricsAwareExecutorService { |
| /** Stripe pools. */ |
| private final IgniteThreadPoolExecutor[] execs; |
| |
| /** |
| * Create striped thread pool. |
| * |
| * @param concurrentLvl Concurrency level. |
| * @param igniteInstanceName Node name. |
| * @param threadNamePrefix Thread name prefix. |
| * @param allowCoreThreadTimeOut Sets the policy governing whether core threads may time out and |
| * terminate if no tasks arrive within the keep-alive time. |
| * @param keepAliveTime When the number of threads is greater than the core, this is the maximum time |
| * that excess idle threads will wait for new tasks before terminating. |
| * @param eHnd Uncaught exception handler. |
| */ |
| public IgniteStripedThreadPoolExecutor( |
| int concurrentLvl, |
| String igniteInstanceName, |
| String threadNamePrefix, |
| UncaughtExceptionHandler eHnd, |
| boolean allowCoreThreadTimeOut, |
| long keepAliveTime) { |
| execs = new IgniteThreadPoolExecutor[concurrentLvl]; |
| |
| ThreadFactory factory = new IgniteThreadFactory(igniteInstanceName, threadNamePrefix, eHnd); |
| |
| for (int i = 0; i < concurrentLvl; i++) { |
| IgniteThreadPoolExecutor executor = new IgniteThreadPoolExecutor( |
| 1, |
| 1, |
| keepAliveTime, |
| new LinkedBlockingQueue<>(), |
| factory); |
| |
| executor.allowCoreThreadTimeOut(allowCoreThreadTimeOut); |
| |
| execs[i] = executor; |
| } |
| } |
| |
| /** |
| * Executes the given command at some time in the future. The command with the same {@code index} |
| * will be executed in the same thread. |
| * |
| * @param task the runnable task |
| * @param idx Striped index. |
| * @throws RejectedExecutionException if this task cannot be |
| * accepted for execution. |
| * @throws NullPointerException If command is null |
| */ |
| public void execute(Runnable task, int idx) { |
| execs[threadId(idx)].execute(task); |
| } |
| |
| /** |
| * @param idx Index. |
| * @return Stripped thread ID. |
| */ |
| public int threadId(int idx) { |
| return idx < execs.length ? idx : idx % execs.length; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void shutdown() { |
| for (ExecutorService exec : execs) |
| exec.shutdown(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public List<Runnable> shutdownNow() { |
| if (execs.length == 0) |
| return Collections.emptyList(); |
| |
| List<Runnable> res = new ArrayList<>(execs.length); |
| |
| for (ExecutorService exec : execs) { |
| for (Runnable r : exec.shutdownNow()) |
| res.add(r); |
| } |
| |
| return res; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean isShutdown() { |
| for (ExecutorService exec : execs) { |
| if (!exec.isShutdown()) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean isTerminated() { |
| for (ExecutorService exec : execs) { |
| if (!exec.isTerminated()) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException { |
| boolean res = true; |
| |
| for (ExecutorService exec : execs) |
| res &= exec.awaitTermination(timeout, unit); |
| |
| return res; |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public <T> Future<T> submit(Callable<T> task) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public <T> Future<T> submit(Runnable task, T res) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public Future<?> submit(Runnable task) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks, |
| long timeout, |
| TimeUnit unit) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public <T> T invokeAny(Collection<? extends Callable<T>> tasks) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public <T> T invokeAny(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void execute(Runnable cmd) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void registerMetrics(MetricRegistry mreg) { |
| mreg.register("ActiveCount", this::activeCount, ACTIVE_COUNT_DESC); |
| mreg.register("CompletedTaskCount", this::completedTaskCount, COMPLETED_TASK_DESC); |
| mreg.intMetric("CorePoolSize", CORE_SIZE_DESC).value(execs.length); |
| mreg.register("LargestPoolSize", this::largestPoolSize, LARGEST_SIZE_DESC); |
| mreg.intMetric("MaximumPoolSize", MAX_SIZE_DESC).value(execs.length); |
| mreg.register("PoolSize", this::poolSize, POOL_SIZE_DESC); |
| mreg.register("TaskCount", this::taskCount, TASK_COUNT_DESC); |
| mreg.register("QueueSize", this::queueSize, QUEUE_SIZE_DESC); |
| mreg.longMetric("KeepAliveTime", KEEP_ALIVE_TIME_DESC).value(execs[0].getKeepAliveTime(TimeUnit.MILLISECONDS)); |
| mreg.register("Shutdown", this::isShutdown, IS_SHUTDOWN_DESC); |
| mreg.register("Terminated", this::isTerminated, IS_TERMINATED_DESC); |
| mreg.register("Terminating", this::terminating, IS_TERMINATING_DESC); |
| mreg.objectMetric("RejectedExecutionHandlerClass", String.class, REJ_HND_DESC) |
| .value(execs[0].getRejectedExecutionHandler().getClass().getName()); |
| mreg.objectMetric("ThreadFactoryClass", String.class, THRD_FACTORY_DESC) |
| .value(execs[0].getThreadFactory().getClass().getName()); |
| } |
| |
| /** |
| * @return Returns true if this executor is in the process of terminating after shutdown or shutdownNow but has not |
| * completely terminated. |
| */ |
| private boolean terminating() { |
| for (IgniteThreadPoolExecutor exec : execs) { |
| if (!exec.isTerminating()) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /** |
| * @return Size of the task queue used by executor. |
| */ |
| private int queueSize() { |
| int queueSize = 0; |
| |
| for (IgniteThreadPoolExecutor exec : execs) |
| queueSize += exec.getQueue().size(); |
| |
| return queueSize; |
| } |
| |
| /** |
| * @return Approximate total number of tasks that have ever been scheduled for execution. Because the states of |
| * tasks and threads may change dynamically during computation, the returned value is only an approximation. |
| */ |
| private long taskCount() { |
| long taskCnt = 0; |
| |
| for (IgniteThreadPoolExecutor exec : execs) |
| taskCnt += exec.getTaskCount(); |
| |
| return taskCnt; |
| } |
| |
| /** |
| * @return Approximate total number of tasks that have completed execution. Because the states of tasks and threads |
| * may change dynamically during computation, the returned value is only an approximation, but one that does not |
| * ever decrease across successive calls. |
| */ |
| private long completedTaskCount() { |
| long completedTaskCnt = 0; |
| |
| for (IgniteThreadPoolExecutor exec : execs) |
| completedTaskCnt += exec.getCompletedTaskCount(); |
| |
| return completedTaskCnt; |
| } |
| |
| /** |
| * @return Approximate number of threads that are actively executing tasks. |
| */ |
| private int activeCount() { |
| int activeCnt = 0; |
| |
| for (IgniteThreadPoolExecutor exec : execs) |
| activeCnt += exec.getActiveCount(); |
| |
| return activeCnt; |
| } |
| |
| /** |
| * @return current number of threads in the pool. |
| */ |
| private int poolSize() { |
| int poolSize = 0; |
| |
| for (IgniteThreadPoolExecutor exec : execs) |
| poolSize += exec.getPoolSize(); |
| |
| return poolSize; |
| } |
| |
| /** |
| * @return Largest number of threads that have ever simultaneously been in the pool. |
| */ |
| private int largestPoolSize() { |
| int largestPoolSize = 0; |
| |
| for (IgniteThreadPoolExecutor exec : execs) |
| largestPoolSize += exec.getLargestPoolSize(); |
| |
| return largestPoolSize; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(IgniteStripedThreadPoolExecutor.class, this); |
| } |
| } |