| /* |
| * 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.cloudstack.storage.datastore.provider; |
| |
| import java.io.UnsupportedEncodingException; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.inject.Inject; |
| |
| import org.apache.cloudstack.engine.subsystem.api.storage.DataStoreManager; |
| import org.apache.cloudstack.engine.subsystem.api.storage.HypervisorHostListener; |
| import org.apache.cloudstack.storage.datastore.db.PrimaryDataStoreDao; |
| import org.apache.cloudstack.storage.datastore.db.StoragePoolDetailsDao; |
| import org.apache.cloudstack.storage.datastore.db.StoragePoolVO; |
| import org.apache.cloudstack.storage.datastore.util.DateraObject; |
| import org.apache.cloudstack.storage.datastore.util.DateraUtil; |
| import org.apache.log4j.Logger; |
| |
| import com.cloud.agent.AgentManager; |
| import com.cloud.agent.api.Answer; |
| import com.cloud.agent.api.ModifyStoragePoolAnswer; |
| import com.cloud.agent.api.ModifyStoragePoolCommand; |
| import com.cloud.agent.api.ModifyTargetsCommand; |
| import com.cloud.alert.AlertManager; |
| import com.cloud.dc.ClusterDetailsDao; |
| import com.cloud.dc.ClusterDetailsVO; |
| import com.cloud.dc.ClusterVO; |
| import com.cloud.dc.dao.ClusterDao; |
| import com.cloud.host.HostVO; |
| import com.cloud.host.dao.HostDao; |
| import com.cloud.hypervisor.Hypervisor.HypervisorType; |
| import com.cloud.storage.DataStoreRole; |
| import com.cloud.storage.StoragePool; |
| import com.cloud.storage.StoragePoolHostVO; |
| import com.cloud.storage.VolumeVO; |
| import com.cloud.storage.dao.StoragePoolHostDao; |
| import com.cloud.storage.dao.VolumeDao; |
| import com.cloud.utils.db.GlobalLock; |
| import com.cloud.utils.exception.CloudRuntimeException; |
| import com.cloud.vm.VMInstanceVO; |
| import com.cloud.vm.dao.VMInstanceDao; |
| |
| public class DateraHostListener implements HypervisorHostListener { |
| private static final Logger s_logger = Logger.getLogger(DateraHostListener.class); |
| |
| @Inject private AgentManager _agentMgr; |
| @Inject private AlertManager _alertMgr; |
| @Inject private ClusterDao _clusterDao; |
| @Inject private ClusterDetailsDao _clusterDetailsDao; |
| @Inject private DataStoreManager _dataStoreMgr; |
| @Inject private HostDao _hostDao; |
| @Inject private PrimaryDataStoreDao _storagePoolDao; |
| @Inject private StoragePoolDetailsDao _storagePoolDetailsDao; |
| @Inject private StoragePoolHostDao storagePoolHostDao; |
| @Inject private VMInstanceDao _vmDao; |
| @Inject private VolumeDao _volumeDao; |
| |
| @Override |
| public boolean hostAdded(long hostId) { |
| return true; |
| } |
| |
| @Override |
| public boolean hostConnect(long hostId, long storagePoolId) { |
| |
| HostVO host = _hostDao.findById(hostId); |
| |
| if (host == null) { |
| s_logger.error("Failed to add host by HostListener as host was not found with id : " + hostId); |
| return false; |
| } |
| StoragePoolHostVO storagePoolHost = storagePoolHostDao.findByPoolHost(storagePoolId, hostId); |
| |
| if (storagePoolHost == null) { |
| storagePoolHost = new StoragePoolHostVO(storagePoolId, hostId, ""); |
| |
| storagePoolHostDao.persist(storagePoolHost); |
| } |
| |
| if (host.getHypervisorType().equals(HypervisorType.XenServer)) { |
| handleXenServer(host.getClusterId(), host.getId(), storagePoolId); |
| } |
| else if (host.getHypervisorType().equals(HypervisorType.KVM)) { |
| //handleKVM(host.getClusterId(), host.getId(), storagePoolId); |
| handleKVM(hostId, storagePoolId); |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public boolean hostDisconnected(long hostId, long storagePoolId) { |
| StoragePoolHostVO storagePoolHost = storagePoolHostDao.findByPoolHost(storagePoolId, hostId); |
| |
| if (storagePoolHost != null) { |
| storagePoolHostDao.deleteStoragePoolHostDetails(hostId, storagePoolId); |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public boolean hostAboutToBeRemoved(long hostId) { |
| HostVO host = _hostDao.findById(hostId); |
| |
| handleVMware(host, false); |
| |
| return true; |
| |
| } |
| |
| @Override |
| public boolean hostRemoved(long hostId, long clusterId) { |
| |
| ClusterVO clusterVO = _clusterDao.findById(clusterId); |
| HostVO hostVO = _hostDao.findByIdIncludingRemoved(hostId); |
| String initiatorName = DateraUtil.INITIATOR_PREFIX + "-" + hostVO.getUuid(); |
| |
| int s_lockTimeInSeconds = 5; |
| |
| GlobalLock lock = GlobalLock.getInternLock(clusterVO.getUuid()); |
| |
| if (!lock.lock(s_lockTimeInSeconds)) { |
| String errMsg = "Couldn't lock the DB on the following string: " + clusterVO.getUuid(); |
| |
| s_logger.debug(errMsg); |
| |
| throw new CloudRuntimeException(errMsg); |
| } |
| |
| try { |
| List<StoragePoolVO> storagePools = _storagePoolDao.findPoolsByProvider(DateraUtil.PROVIDER_NAME); |
| |
| if (storagePools != null && storagePools.size() > 0) { |
| for (StoragePoolVO storagePool : storagePools) { |
| ClusterDetailsVO clusterDetail = _clusterDetailsDao.findDetail(clusterId, DateraUtil.getInitiatorGroupKey(storagePool.getId())); |
| |
| String initiatorGroupName = clusterDetail != null ? clusterDetail.getValue() : null; |
| |
| if (initiatorGroupName != null && DateraUtil.hostSupport_iScsi(hostVO) ) { |
| DateraObject.DateraConnection conn = DateraUtil.getDateraConnection(storagePool.getId(), _storagePoolDetailsDao); |
| DateraObject.Initiator initiator = DateraUtil.getInitiator(conn, hostVO.getStorageUrl()); |
| DateraObject.InitiatorGroup initiatorGroup = DateraUtil.getInitiatorGroup(conn, initiatorGroupName); |
| |
| if (initiator!= null && DateraUtil.isInitiatorPresentInGroup(initiator, initiatorGroup)) { |
| DateraUtil.removeInitiatorFromGroup(conn, initiator.getPath(), initiatorGroupName); |
| } |
| } |
| } |
| } |
| |
| } catch (DateraObject.DateraError | UnsupportedEncodingException e) { |
| s_logger.warn("Error while removing host from initiator groups ", e); |
| } finally { |
| lock.unlock(); |
| lock.releaseRef(); |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public boolean hostEnabled(long hostId) { |
| return true; |
| } |
| |
| private void handleXenServer(long clusterId, long hostId, long storagePoolId) { |
| List<String> storagePaths = getStoragePaths(clusterId, storagePoolId); |
| |
| StoragePool storagePool = (StoragePool)_dataStoreMgr.getDataStore(storagePoolId, DataStoreRole.Primary); |
| |
| for (String storagePath : storagePaths) { |
| ModifyStoragePoolCommand cmd = new ModifyStoragePoolCommand(true, storagePool); |
| |
| cmd.setStoragePath(storagePath); |
| |
| sendModifyStoragePoolCommand(cmd, storagePool, hostId); |
| } |
| } |
| |
| private void handleVMware(HostVO host, boolean add) { |
| if (HypervisorType.VMware.equals(host.getHypervisorType())) { |
| List<StoragePoolVO> storagePools = _storagePoolDao.findPoolsByProvider(DateraUtil.PROVIDER_NAME); |
| |
| if (storagePools != null && storagePools.size() > 0) { |
| List<Map<String, String>> targets = new ArrayList<>(); |
| |
| for (StoragePoolVO storagePool : storagePools) { |
| List<Map<String, String>> targetsForClusterAndStoragePool = getTargets(host.getClusterId(), storagePool.getId()); |
| |
| targets.addAll(targetsForClusterAndStoragePool); |
| } |
| |
| ModifyTargetsCommand cmd = new ModifyTargetsCommand(); |
| |
| cmd.setAdd(add); |
| cmd.setTargets(targets); |
| |
| sendModifyTargetsCommand(cmd, host.getId()); |
| } |
| } |
| } |
| |
| private void handleKVM(long clusterId, long hostId, long storagePoolId) { |
| List<String> storagePaths = getStoragePaths(clusterId, storagePoolId); |
| |
| StoragePool storagePool = (StoragePool)_dataStoreMgr.getDataStore(storagePoolId, DataStoreRole.Primary); |
| |
| for (String storagePath : storagePaths) { |
| ModifyStoragePoolCommand cmd = new ModifyStoragePoolCommand(true, storagePool); |
| |
| cmd.setStoragePath(storagePath); |
| |
| sendModifyStoragePoolCommand(cmd, storagePool, hostId); |
| } |
| } |
| |
| private void handleKVM(long hostId, long storagePoolId) { |
| StoragePool storagePool = (StoragePool)_dataStoreMgr.getDataStore(storagePoolId, DataStoreRole.Primary); |
| |
| ModifyStoragePoolCommand cmd = new ModifyStoragePoolCommand(true, storagePool); |
| |
| sendModifyStoragePoolCommand(cmd, storagePool, hostId); |
| } |
| |
| private List<String> getStoragePaths(long clusterId, long storagePoolId) { |
| List<String> storagePaths = new ArrayList<>(); |
| |
| // If you do not pass in null for the second parameter, you only get back applicable ROOT disks. |
| List<VolumeVO> volumes = _volumeDao.findByPoolId(storagePoolId, null); |
| |
| if (volumes != null) { |
| for (VolumeVO volume : volumes) { |
| Long instanceId = volume.getInstanceId(); |
| |
| if (instanceId != null) { |
| VMInstanceVO vmInstance = _vmDao.findById(instanceId); |
| |
| Long hostIdForVm = vmInstance.getHostId() != null ? vmInstance.getHostId() : vmInstance.getLastHostId(); |
| |
| if (hostIdForVm != null ) { |
| HostVO hostForVm = _hostDao.findById(hostIdForVm); |
| |
| if (hostForVm.getClusterId().equals(clusterId)) { |
| storagePaths.add(volume.get_iScsiName()); |
| } |
| } |
| } |
| } |
| } |
| |
| return storagePaths; |
| } |
| |
| private void sendModifyTargetsCommand(ModifyTargetsCommand cmd, long hostId) { |
| Answer answer = _agentMgr.easySend(hostId, cmd); |
| |
| if (answer == null) { |
| throw new CloudRuntimeException("Unable to get an answer to the modify targets command"); |
| } |
| |
| if (!answer.getResult()) { |
| String msg = "Unable to modify targets on the following host: " + hostId; |
| |
| HostVO host = _hostDao.findById(hostId); |
| |
| _alertMgr.sendAlert(AlertManager.AlertType.ALERT_TYPE_HOST, host.getDataCenterId(), host.getPodId(), msg, msg); |
| |
| throw new CloudRuntimeException(msg); |
| } |
| } |
| |
| private void sendModifyStoragePoolCommand(ModifyStoragePoolCommand cmd, StoragePool storagePool, long hostId) { |
| Answer answer = _agentMgr.easySend(hostId, cmd); |
| |
| if (answer == null) { |
| throw new CloudRuntimeException("Unable to get an answer to the modify storage pool command (" + storagePool.getId() + ")"); |
| } |
| |
| if (!answer.getResult()) { |
| String msg = "Unable to attach storage pool " + storagePool.getId() + " to host " + hostId; |
| |
| _alertMgr.sendAlert(AlertManager.AlertType.ALERT_TYPE_HOST, storagePool.getDataCenterId(), storagePool.getPodId(), msg, msg); |
| |
| throw new CloudRuntimeException("Unable to establish a connection from agent to storage pool " + storagePool.getId() + " due to " + answer.getDetails() + |
| " (" + storagePool.getId() + ")"); |
| } |
| |
| assert (answer instanceof ModifyStoragePoolAnswer) : "ModifyStoragePoolAnswer expected ; Pool = " + storagePool.getId() + " Host = " + hostId; |
| |
| s_logger.info("Connection established between storage pool " + storagePool + " and host + " + hostId); |
| } |
| |
| private List<Map<String, String>> getTargets(long clusterId, long storagePoolId) { |
| List<Map<String, String>> targets = new ArrayList<>(); |
| |
| StoragePoolVO storagePool = _storagePoolDao.findById(storagePoolId); |
| |
| // If you do not pass in null for the second parameter, you only get back applicable ROOT disks. |
| List<VolumeVO> volumes = _volumeDao.findByPoolId(storagePoolId, null); |
| |
| if (volumes != null) { |
| for (VolumeVO volume : volumes) { |
| Long instanceId = volume.getInstanceId(); |
| |
| if (instanceId != null) { |
| VMInstanceVO vmInstance = _vmDao.findById(instanceId); |
| |
| Long hostIdForVm = vmInstance.getHostId() != null ? vmInstance.getHostId() : vmInstance.getLastHostId(); |
| |
| if (hostIdForVm != null) { |
| HostVO hostForVm = _hostDao.findById(hostIdForVm); |
| |
| if (hostForVm.getClusterId().equals(clusterId)) { |
| Map<String, String> details = new HashMap<>(); |
| |
| details.put(ModifyTargetsCommand.IQN, volume.get_iScsiName()); |
| details.put(ModifyTargetsCommand.STORAGE_HOST, storagePool.getHostAddress()); |
| details.put(ModifyTargetsCommand.STORAGE_PORT, String.valueOf(storagePool.getPort())); |
| |
| targets.add(details); |
| } |
| } |
| } |
| } |
| } |
| |
| return targets; |
| } |
| } |