| // 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 javax.inject.Inject; |
| |
| import org.apache.log4j.Logger; |
| |
| import com.cloud.agent.AgentManager; |
| import com.cloud.agent.api.CheckVirtualMachineAnswer; |
| import com.cloud.agent.api.CheckVirtualMachineCommand; |
| import com.cloud.exception.AgentUnavailableException; |
| import com.cloud.exception.OperationTimedoutException; |
| import com.cloud.host.Host; |
| import com.cloud.host.Status; |
| import com.cloud.utils.component.AdapterBase; |
| import com.cloud.vm.VirtualMachine; |
| import com.cloud.vm.VirtualMachine.PowerState; |
| |
| public class CheckOnAgentInvestigator extends AdapterBase implements Investigator { |
| private final static Logger s_logger = Logger.getLogger(CheckOnAgentInvestigator.class); |
| @Inject |
| AgentManager _agentMgr; |
| |
| protected CheckOnAgentInvestigator() { |
| } |
| |
| @Override |
| public Status isAgentAlive(Host agent) { |
| return null; |
| } |
| |
| @Override |
| public boolean isVmAlive(VirtualMachine vm, Host host) throws UnknownVM { |
| CheckVirtualMachineCommand cmd = new CheckVirtualMachineCommand(vm.getInstanceName()); |
| try { |
| CheckVirtualMachineAnswer answer = (CheckVirtualMachineAnswer)_agentMgr.send(vm.getHostId(), cmd); |
| if (!answer.getResult()) { |
| s_logger.debug("Unable to get vm state on " + vm.toString()); |
| throw new UnknownVM(); |
| } |
| |
| s_logger.debug("Agent responded with state " + answer.getState().toString()); |
| return answer.getState() == PowerState.PowerOn; |
| } catch (AgentUnavailableException e) { |
| s_logger.debug("Unable to reach the agent for " + vm.toString() + ": " + e.getMessage()); |
| throw new UnknownVM(); |
| } catch (OperationTimedoutException e) { |
| s_logger.debug("Operation timed out for " + vm.toString() + ": " + e.getMessage()); |
| throw new UnknownVM(); |
| } |
| } |
| } |