| /** |
| * 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.hadoop.hbase.ipc; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.mockito.Mockito.doAnswer; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| import java.io.IOException; |
| import java.lang.reflect.Field; |
| import java.net.InetSocketAddress; |
| import java.util.concurrent.ThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseConfiguration; |
| import org.apache.hadoop.hbase.monitoring.MonitoredRPCHandlerImpl; |
| import org.apache.hadoop.hbase.testclassification.RPCTests; |
| import org.apache.hadoop.hbase.testclassification.SmallTests; |
| import org.junit.Before; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.mockito.invocation.InvocationOnMock; |
| import org.mockito.stubbing.Answer; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Category({RPCTests.class, SmallTests.class}) |
| public class TestFifoRpcScheduler { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestFifoRpcScheduler.class); |
| |
| private static final Logger LOG = LoggerFactory.getLogger(TestFifoRpcScheduler.class); |
| |
| private AtomicInteger callExecutionCount; |
| |
| private final RpcScheduler.Context CONTEXT = new RpcScheduler.Context() { |
| @Override |
| public InetSocketAddress getListenerAddress() { |
| return InetSocketAddress.createUnresolved("127.0.0.1", 1000); |
| } |
| }; |
| private Configuration conf; |
| |
| @Before |
| public void setUp() { |
| conf = HBaseConfiguration.create(); |
| callExecutionCount = new AtomicInteger(0); |
| } |
| |
| private ThreadPoolExecutor disableHandlers(RpcScheduler scheduler) { |
| ThreadPoolExecutor rpcExecutor=null; |
| |
| try { |
| Field ExecutorField = scheduler.getClass().getDeclaredField("executor"); |
| ExecutorField.setAccessible(true); |
| |
| scheduler.start(); |
| rpcExecutor = (ThreadPoolExecutor) ExecutorField.get(scheduler); |
| |
| rpcExecutor.setMaximumPoolSize(1); |
| rpcExecutor.allowCoreThreadTimeOut(true); |
| rpcExecutor.setCorePoolSize(0); |
| rpcExecutor.setKeepAliveTime(1, TimeUnit.MICROSECONDS); |
| |
| // Wait for 2 seconds, so that idle threads will die |
| Thread.sleep(2000); |
| |
| } catch (NoSuchFieldException e) { |
| LOG.error("No such field exception:"+e); |
| } catch (IllegalAccessException e) { |
| LOG.error("Illegal access exception:"+e); |
| } catch (InterruptedException e) { |
| LOG.error("Interrupted exception:"+e); |
| } |
| |
| return rpcExecutor; |
| } |
| |
| @Test |
| public void testCallQueueInfo() throws IOException, InterruptedException { |
| |
| ThreadPoolExecutor rpcExecutor; |
| RpcScheduler scheduler = new FifoRpcScheduler( |
| conf, 1); |
| |
| scheduler.init(CONTEXT); |
| |
| // Set number of handlers to a minimum value |
| disableHandlers(scheduler); |
| |
| int totalCallMethods = 30; |
| int unableToDispatch = 0; |
| |
| for (int i = totalCallMethods; i>0; i--) { |
| CallRunner task = createMockTask(); |
| task.setStatus(new MonitoredRPCHandlerImpl()); |
| |
| if(!scheduler.dispatch(task)) { |
| unableToDispatch++; |
| } |
| |
| Thread.sleep(10); |
| } |
| |
| |
| CallQueueInfo callQueueInfo = scheduler.getCallQueueInfo(); |
| int executionCount = callExecutionCount.get(); |
| int callQueueSize = 0; |
| |
| for (String callQueueName:callQueueInfo.getCallQueueNames()) { |
| for (String calledMethod: callQueueInfo.getCalledMethodNames(callQueueName)) { |
| callQueueSize += callQueueInfo.getCallMethodCount(callQueueName, calledMethod); |
| } |
| } |
| |
| assertEquals(totalCallMethods - unableToDispatch, callQueueSize + executionCount); |
| |
| scheduler.stop(); |
| } |
| |
| private CallRunner createMockTask() { |
| ServerCall call = mock(ServerCall.class); |
| CallRunner task = mock(CallRunner.class); |
| when(task.getRpcCall()).thenReturn(call); |
| |
| doAnswer(new Answer<Void>() { |
| @Override public Void answer (InvocationOnMock invocation) throws Throwable { |
| callExecutionCount.incrementAndGet(); |
| Thread.sleep(1000); |
| return null; |
| } |
| }).when(task).run(); |
| |
| return task; |
| } |
| |
| } |