| /* |
| * 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 com.cloud.ha; |
| |
| import java.util.List; |
| |
| import javax.inject.Inject; |
| |
| |
| import com.cloud.agent.AgentManager; |
| import com.cloud.agent.api.Answer; |
| import com.cloud.agent.api.CheckOnHostCommand; |
| import com.cloud.host.Host; |
| import com.cloud.host.HostVO; |
| import com.cloud.host.Status; |
| import com.cloud.host.dao.HostDao; |
| import com.cloud.hypervisor.Hypervisor; |
| import com.cloud.resource.ResourceManager; |
| import com.cloud.utils.component.AdapterBase; |
| |
| public class HypervInvestigator extends AdapterBase implements Investigator { |
| @Inject HostDao _hostDao; |
| @Inject AgentManager _agentMgr; |
| @Inject ResourceManager _resourceMgr; |
| |
| @Override |
| public boolean isVmAlive(com.cloud.vm.VirtualMachine vm, Host host) throws UnknownVM { |
| Status status = isAgentAlive(host); |
| if (status == null) { |
| throw new UnknownVM(); |
| } |
| return status == Status.Up ? true : null; |
| } |
| |
| @Override |
| public Status isAgentAlive(Host agent) { |
| if (agent.getHypervisorType() != Hypervisor.HypervisorType.Hyperv) { |
| return null; |
| } |
| CheckOnHostCommand cmd = new CheckOnHostCommand(agent); |
| List<HostVO> neighbors = _resourceMgr.listHostsInClusterByStatus(agent.getClusterId(), Status.Up); |
| for (HostVO neighbor : neighbors) { |
| if (neighbor.getId() == agent.getId() || neighbor.getHypervisorType() != Hypervisor.HypervisorType.Hyperv) { |
| continue; |
| } |
| |
| try { |
| Answer answer = _agentMgr.easySend(neighbor.getId(), cmd); |
| if (answer != null) { |
| return answer.getResult() ? Status.Down : Status.Up; |
| } |
| } catch (Exception e) { |
| logger.debug("Failed to send command to host: " + neighbor.getId(), e); |
| } |
| } |
| |
| return null; |
| } |
| } |