| // 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 org.apache.log4j.Logger; |
| |
| import com.cloud.host.Host; |
| import com.cloud.host.HostVO; |
| import com.cloud.host.Status; |
| import com.cloud.host.dao.HostDao; |
| import com.cloud.network.NetworkModel; |
| import com.cloud.network.Networks.TrafficType; |
| import com.cloud.vm.Nic; |
| import com.cloud.vm.VirtualMachine; |
| |
| public class ManagementIPSystemVMInvestigator extends AbstractInvestigatorImpl { |
| private static final Logger s_logger = Logger.getLogger(ManagementIPSystemVMInvestigator.class); |
| |
| @Inject |
| private final HostDao _hostDao = null; |
| @Inject |
| private final NetworkModel _networkMgr = null; |
| |
| @Override |
| public boolean isVmAlive(VirtualMachine vm, Host host) throws UnknownVM { |
| if (!vm.getType().isUsedBySystem()) { |
| s_logger.debug("Not a System Vm, unable to determine state of " + vm + " returning null"); |
| } |
| |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("Testing if " + vm + " is alive"); |
| } |
| |
| if (vm.getHostId() == null) { |
| s_logger.debug("There's no host id for " + vm); |
| throw new UnknownVM(); |
| } |
| |
| HostVO vmHost = _hostDao.findById(vm.getHostId()); |
| if (vmHost == null) { |
| s_logger.debug("Unable to retrieve the host by using id " + vm.getHostId()); |
| throw new UnknownVM(); |
| } |
| |
| List<? extends Nic> nics = _networkMgr.getNicsForTraffic(vm.getId(), TrafficType.Management); |
| if (nics.size() == 0) { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("Unable to find a management nic, cannot ping this system VM, unable to determine state of " + vm + " returning null"); |
| } |
| throw new UnknownVM(); |
| } |
| |
| for (Nic nic : nics) { |
| if (nic.getIPv4Address() == null) { |
| continue; |
| } |
| // get the data center IP address, find a host on the pod, use that host to ping the data center IP address |
| List<Long> otherHosts = findHostByPod(vmHost.getPodId(), vm.getHostId()); |
| for (Long otherHost : otherHosts) { |
| Status vmState = testIpAddress(otherHost, nic.getIPv4Address()); |
| assert vmState != null; |
| // In case of Status.Unknown, next host will be tried |
| if (vmState == Status.Up) { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("successfully pinged vm's private IP (" + vm.getPrivateIpAddress() + "), returning that the VM is up"); |
| } |
| return Boolean.TRUE; |
| } else if (vmState == Status.Down) { |
| // We can't ping the VM directly...if we can ping the host, then report the VM down. |
| // If we can't ping the host, then we don't have enough information. |
| Status vmHostState = testIpAddress(otherHost, vmHost.getPrivateIpAddress()); |
| assert vmHostState != null; |
| if (vmHostState == Status.Up) { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("successfully pinged vm's host IP (" + vmHost.getPrivateIpAddress() + |
| "), but could not ping VM, returning that the VM is down"); |
| } |
| return Boolean.FALSE; |
| } |
| } |
| } |
| } |
| |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("unable to determine state of " + vm + " returning null"); |
| } |
| throw new UnknownVM(); |
| } |
| |
| @Override |
| public Status isAgentAlive(Host agent) { |
| return null; |
| } |
| |
| @Override |
| public boolean start() { |
| return true; |
| } |
| |
| @Override |
| public boolean stop() { |
| return true; |
| } |
| |
| } |