| /** |
| * 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.heron.scheduler.aurora; |
| |
| import java.net.HttpURLConnection; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.logging.Logger; |
| |
| import org.apache.heron.proto.system.PhysicalPlans.StMgr; |
| import org.apache.heron.spi.common.Config; |
| import org.apache.heron.spi.common.Context; |
| import org.apache.heron.spi.packing.PackingPlan; |
| import org.apache.heron.spi.statemgr.IStateManager; |
| import org.apache.heron.spi.statemgr.SchedulerStateManagerAdaptor; |
| import org.apache.heron.spi.utils.NetworkUtils; |
| import org.apache.heron.spi.utils.ReflectionUtils; |
| |
| /** |
| * Implementation of AuroraController that is a wrapper of AuroraCLIController. |
| * The difference is `restart` command: |
| * 1. restart whole topology: delegate to AuroraCLIController |
| * 2. restart container 0: delegate to AuroraCLIController |
| * 3. restart container x(x>0): call heron-shell endpoint `/killexecutor` |
| * For backpressure, only containers with heron-stmgr may send out backpressure. |
| * This class is to handle `restart backpressure containers inside container`, |
| * while delegating to AuroraCLIController for all the other scenarios. |
| */ |
| class AuroraHeronShellController implements AuroraController { |
| private static final Logger LOG = Logger.getLogger(AuroraHeronShellController.class.getName()); |
| |
| private final String topologyName; |
| private final AuroraCLIController cliController; |
| private final SchedulerStateManagerAdaptor stateMgrAdaptor; |
| |
| AuroraHeronShellController(String jobName, String cluster, String role, String env, |
| String auroraFilename, boolean isVerbose, Config localConfig) |
| throws ClassNotFoundException, InstantiationException, IllegalAccessException { |
| this.topologyName = jobName; |
| this.cliController = |
| new AuroraCLIController(jobName, cluster, role, env, auroraFilename, isVerbose); |
| |
| Config config = Config.toClusterMode(localConfig); |
| String stateMgrClass = Context.stateManagerClass(config); |
| IStateManager stateMgr = ReflectionUtils.newInstance(stateMgrClass); |
| stateMgr.initialize(config); |
| stateMgrAdaptor = new SchedulerStateManagerAdaptor(stateMgr, 5000); |
| } |
| |
| @Override |
| public boolean createJob(Map<AuroraField, String> bindings, Map<String, String> extra) { |
| return cliController.createJob(bindings, extra); |
| } |
| |
| @Override |
| public boolean killJob() { |
| return cliController.killJob(); |
| } |
| |
| private StMgr searchContainer(Integer id) { |
| String prefix = "stmgr-" + id; |
| for (StMgr sm : stateMgrAdaptor.getPhysicalPlan(topologyName).getStmgrsList()) { |
| if (sm.getId().equals(prefix)) { |
| return sm; |
| } |
| } |
| return null; |
| } |
| |
| // Restart an aurora container |
| @Override |
| public boolean restart(Integer containerId) { |
| // there is no backpressure for container 0, delegate to aurora client |
| if (containerId == null || containerId == 0) { |
| return cliController.restart(containerId); |
| } |
| |
| if (stateMgrAdaptor == null) { |
| LOG.warning("SchedulerStateManagerAdaptor not initialized"); |
| return false; |
| } |
| |
| StMgr sm = searchContainer(containerId); |
| if (sm == null) { |
| LOG.warning("container not found in pplan " + containerId); |
| return false; |
| } |
| |
| String url = "http://" + sm.getHostName() + ":" + sm.getShellPort() + "/killexecutor"; |
| String payload = "secret=" + stateMgrAdaptor.getExecutionState(topologyName).getTopologyId(); |
| LOG.info("sending `kill container` to " + url + "; payload: " + payload); |
| |
| HttpURLConnection con = NetworkUtils.getHttpConnection(url); |
| try { |
| if (NetworkUtils.sendHttpPostRequest(con, "X", payload.getBytes())) { |
| return NetworkUtils.checkHttpResponseCode(con, 200); |
| } else { // if heron-shell command fails, delegate to aurora client |
| LOG.info("heron-shell killexecutor failed; try aurora client .."); |
| return cliController.restart(containerId); |
| } |
| } finally { |
| con.disconnect(); |
| } |
| } |
| |
| @Override |
| public void removeContainers(Set<PackingPlan.ContainerPlan> containersToRemove) { |
| cliController.removeContainers(containersToRemove); |
| } |
| |
| @Override |
| public Set<Integer> addContainers(Integer count) { |
| return cliController.addContainers(count); |
| } |
| } |