| /* |
| * 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.drill.exec.service; |
| |
| import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| |
| import io.netty.channel.EventLoopGroup; |
| |
| import java.net.InetAddress; |
| import java.net.UnknownHostException; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.drill.common.AutoCloseables; |
| import org.apache.drill.common.config.DrillConfig; |
| import org.apache.drill.common.util.DrillVersionInfo; |
| import org.apache.drill.exec.ExecConstants; |
| import org.apache.drill.exec.exception.DrillbitStartupException; |
| import org.apache.drill.exec.memory.BufferAllocator; |
| import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint; |
| import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint.State; |
| import org.apache.drill.exec.rpc.TransportCheck; |
| import org.apache.drill.exec.rpc.control.Controller; |
| import org.apache.drill.exec.rpc.control.ControllerImpl; |
| import org.apache.drill.exec.rpc.data.DataConnectionCreator; |
| import org.apache.drill.exec.rpc.user.UserServer; |
| import org.apache.drill.exec.server.BootStrapContext; |
| import org.apache.drill.exec.work.WorkManager; |
| |
| import org.apache.drill.shaded.guava.com.google.common.base.Stopwatch; |
| |
| public class ServiceEngine implements AutoCloseable { |
| static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(ServiceEngine.class); |
| |
| private final UserServer userServer; |
| private final Controller controller; |
| private final DataConnectionCreator dataPool; |
| |
| private final String hostName; |
| private final String bindAddr; |
| private final int intialUserPort; |
| private final boolean allowPortHunting; |
| private final boolean isDistributedMode; |
| |
| private final BufferAllocator userAllocator; |
| private final BufferAllocator controlAllocator; |
| private final BufferAllocator dataAllocator; |
| |
| private int userPort; |
| |
| public ServiceEngine(final WorkManager manager, final BootStrapContext context, |
| final boolean allowPortHunting, final boolean isDistributedMode) |
| throws DrillbitStartupException { |
| userAllocator = newAllocator(context, "rpc:user", "drill.exec.rpc.user.server.memory.reservation", |
| "drill.exec.rpc.user.server.memory.maximum"); |
| controlAllocator = newAllocator(context, "rpc:bit-control", |
| "drill.exec.rpc.bit.server.memory.control.reservation", "drill.exec.rpc.bit.server.memory.control.maximum"); |
| dataAllocator = newAllocator(context, "rpc:bit-data", |
| "drill.exec.rpc.bit.server.memory.data.reservation", "drill.exec.rpc.bit.server.memory.data.maximum"); |
| |
| DrillConfig drillConfig = context.getConfig(); |
| final EventLoopGroup eventLoopGroup = TransportCheck.createEventLoopGroup( |
| drillConfig.getInt(ExecConstants.USER_SERVER_RPC_THREADS), "UserServer-"); |
| userServer = new UserServer(context, userAllocator, eventLoopGroup, manager.getUserWorker()); |
| controller = new ControllerImpl(context, controlAllocator, manager.getControlMessageHandler()); |
| dataPool = new DataConnectionCreator(context, dataAllocator, manager.getWorkBus(), manager.getBee()); |
| |
| hostName = context.getHostName(); |
| bindAddr = drillConfig.getString(ExecConstants.RPC_BIND_ADDR); |
| intialUserPort = drillConfig.getInt(ExecConstants.INITIAL_USER_PORT); |
| this.allowPortHunting = allowPortHunting; |
| this.isDistributedMode = isDistributedMode; |
| } |
| |
| private static BufferAllocator newAllocator( |
| BootStrapContext context, String name, String initReservation, String maxAllocation) { |
| return context.getAllocator().newChildAllocator( |
| name, context.getConfig().getLong(initReservation), context.getConfig().getLong(maxAllocation)); |
| } |
| |
| public DrillbitEndpoint start() throws DrillbitStartupException, UnknownHostException { |
| // loopback address check |
| if (isDistributedMode && InetAddress.getByName(bindAddr).isLoopbackAddress()) { |
| throw new DrillbitStartupException( |
| "Drillbit may not bind to a loopback address in distributed mode." |
| ); |
| } |
| |
| userPort = userServer.bind(bindAddr, intialUserPort, allowPortHunting); |
| DrillbitEndpoint partialEndpoint = DrillbitEndpoint.newBuilder() |
| .setAddress(hostName) |
| .setUserPort(userPort) |
| .setVersion(DrillVersionInfo.getVersion()) |
| .setState(State.STARTUP) |
| .build(); |
| |
| partialEndpoint = controller.start(partialEndpoint, allowPortHunting); |
| return dataPool.start(partialEndpoint, allowPortHunting); |
| } |
| |
| public int getUserPort() { |
| return userPort; |
| } |
| |
| public DataConnectionCreator getDataConnectionCreator(){ |
| return dataPool; |
| } |
| |
| public Controller getController() { |
| return controller; |
| } |
| |
| private void submit(Executor p, final String name, final AutoCloseable c) { |
| p.execute(new Runnable() { |
| @Override |
| public void run() { |
| Stopwatch watch = Stopwatch.createStarted(); |
| try { |
| c.close(); |
| } catch (Exception e) { |
| logger.warn("Failure while closing {}.", name, e); |
| } |
| long elapsed = watch.elapsed(MILLISECONDS); |
| if (elapsed > 500) { |
| logger.info("closed " + name + " in " + elapsed + " ms"); |
| } |
| } |
| }); |
| } |
| |
| @Override |
| public void close() throws Exception { |
| // this takes time so close them in parallel |
| // Ideally though we fix this netty bug: https://github.com/netty/netty/issues/2545 |
| ExecutorService p = Executors.newFixedThreadPool(2); |
| submit(p, "userServer", userServer); |
| submit(p, "dataPool", dataPool); |
| submit(p, "controller", controller); |
| p.shutdown(); |
| try { |
| p.awaitTermination(3, TimeUnit.SECONDS); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| } |
| AutoCloseables.close(userAllocator, controlAllocator, dataAllocator); |
| |
| } |
| } |