cloudstack/server/src/com/cloud/resource/ResourceManagerImpl.java
2011-09-13 17:35:58 -07:00

971 lines
43 KiB
Java
Executable File

/**
* Copyright (C) 2010 Cloud.com, Inc. All rights reserved.
*
* This software is licensed under the GNU General Public License v3 or later.
*
* It is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package com.cloud.resource;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.ejb.Local;
import javax.naming.ConfigurationException;
import org.apache.log4j.Logger;
import com.cloud.agent.AgentManager;
import com.cloud.agent.manager.AgentAttache;
import com.cloud.api.commands.AddClusterCmd;
import com.cloud.api.commands.AddHostCmd;
import com.cloud.api.commands.AddSecondaryStorageCmd;
import com.cloud.api.commands.CancelMaintenanceCmd;
import com.cloud.api.commands.DeleteClusterCmd;
import com.cloud.api.commands.PrepareForMaintenanceCmd;
import com.cloud.api.commands.ReconnectHostCmd;
import com.cloud.api.commands.UpdateHostCmd;
import com.cloud.api.commands.UpdateHostPasswordCmd;
import com.cloud.cluster.ManagementServerNode;
import com.cloud.dc.ClusterDetailsDao;
import com.cloud.dc.ClusterVO;
import com.cloud.dc.DataCenterVO;
import com.cloud.dc.HostPodVO;
import com.cloud.dc.dao.ClusterDao;
import com.cloud.dc.dao.DataCenterDao;
import com.cloud.dc.dao.HostPodDao;
import com.cloud.exception.AgentUnavailableException;
import com.cloud.exception.DiscoveryException;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.exception.PermissionDeniedException;
import com.cloud.host.Host;
import com.cloud.host.Host.HostAllocationState;
import com.cloud.host.HostVO;
import com.cloud.host.Status;
import com.cloud.host.dao.HostDao;
import com.cloud.host.dao.HostDetailsDao;
import com.cloud.host.dao.HostTagsDao;
import com.cloud.hypervisor.Hypervisor;
import com.cloud.hypervisor.Hypervisor.HypervisorType;
import com.cloud.hypervisor.kvm.resource.KvmDummyResourceBase;
import com.cloud.org.Cluster;
import com.cloud.org.Grouping;
import com.cloud.org.Managed;
import com.cloud.storage.GuestOSCategoryVO;
import com.cloud.storage.StorageManager;
import com.cloud.storage.dao.GuestOSCategoryDao;
import com.cloud.storage.secondary.SecondaryStorageVmManager;
import com.cloud.user.Account;
import com.cloud.user.AccountManager;
import com.cloud.user.User;
import com.cloud.user.UserContext;
import com.cloud.utils.UriUtils;
import com.cloud.utils.component.Adapters;
import com.cloud.utils.component.Inject;
import com.cloud.utils.component.Manager;
import com.cloud.utils.db.DB;
import com.cloud.utils.db.Transaction;
import com.cloud.utils.exception.CloudRuntimeException;
@Local({ ResourceManager.class, ResourceService.class })
public class ResourceManagerImpl implements ResourceManager, ResourceService, Manager {
private static final Logger s_logger = Logger.getLogger(ResourceManagerImpl.class);
private String _name;
@Inject
AccountManager _accountMgr;
@Inject
AgentManager _agentMgr;
@Inject
StorageManager _storageMgr;
@Inject
protected SecondaryStorageVmManager _secondaryStorageMgr;
@Inject
protected DataCenterDao _dcDao;
@Inject
protected HostPodDao _podDao;
@Inject
protected ClusterDetailsDao _clusterDetailsDao;
@Inject
protected ClusterDao _clusterDao;
@Inject
protected HostDao _hostDao;
@Inject
protected HostDetailsDao _hostDetailsDao;
@Inject
protected HostTagsDao _hostTagsDao;
@Inject
protected GuestOSCategoryDao _guestOSCategoryDao;
@Inject(adapter = Discoverer.class)
protected Adapters<? extends Discoverer> _discoverers;
protected long _nodeId = ManagementServerNode.getManagementServerId();
protected HashMap<Integer, List<ResourceListener>> _lifeCycleListeners = new HashMap<Integer, List<ResourceListener>>();
private void insertListener(Integer event, ResourceListener listener) {
List<ResourceListener> lst = _lifeCycleListeners.get(event);
if (lst == null) {
lst = new ArrayList<ResourceListener>();
_lifeCycleListeners.put(event, lst);
}
if (lst.contains(listener)) {
throw new CloudRuntimeException("Duplicate resource lisener:" + listener.getClass().getSimpleName());
}
lst.add(listener);
}
@Override
public void registerResourceEvent(Integer event, ResourceListener listener) {
synchronized (_lifeCycleListeners) {
if ((event & ResourceListener.EVENT_DISCOVER_BEFORE) != 0) {
insertListener(ResourceListener.EVENT_DISCOVER_BEFORE, listener);
}
if ((event & ResourceListener.EVENT_DISCOVER_AFTER) != 0) {
insertListener(ResourceListener.EVENT_DISCOVER_AFTER, listener);
}
if ((event & ResourceListener.EVENT_DELETE_HOST_BEFORE) != 0) {
insertListener(ResourceListener.EVENT_DELETE_HOST_BEFORE, listener);
}
if ((event & ResourceListener.EVENT_DELETE_HOST_AFTER) != 0) {
insertListener(ResourceListener.EVENT_DELETE_HOST_AFTER, listener);
}
if ((event & ResourceListener.EVENT_CANCEL_MAINTENANCE_BEFORE) != 0) {
insertListener(ResourceListener.EVENT_CANCEL_MAINTENANCE_BEFORE, listener);
}
if ((event & ResourceListener.EVENT_CANCEL_MAINTENANCE_AFTER) != 0) {
insertListener(ResourceListener.EVENT_CANCEL_MAINTENANCE_AFTER, listener);
}
if ((event & ResourceListener.EVENT_PREPARE_MAINTENANCE_BEFORE) != 0) {
insertListener(ResourceListener.EVENT_PREPARE_MAINTENANCE_BEFORE, listener);
}
if ((event & ResourceListener.EVENT_PREPARE_MAINTENANCE_AFTER) != 0) {
insertListener(ResourceListener.EVENT_PREPARE_MAINTENANCE_AFTER, listener);
}
}
}
@Override
public void unregisterResourceEvent(ResourceListener listener) {
synchronized (_lifeCycleListeners) {
Iterator it = _lifeCycleListeners.entrySet().iterator();
while (it.hasNext()) {
Map.Entry<Integer, List<ResourceListener>> items = (Map.Entry<Integer, List<ResourceListener>>)it.next();
List<ResourceListener> lst = items.getValue();
lst.remove(listener);
}
}
}
protected void processResourceEvent(Integer event, Object...params) {
List<ResourceListener> lst = _lifeCycleListeners.get(event);
if (lst == null || lst.size() == 0) {
return;
}
String eventName;
for (ResourceListener l : lst) {
if (event == ResourceListener.EVENT_DISCOVER_BEFORE) {
l.processDiscoverEventBefore((Long) params[0], (Long) params[1], (Long) params[2], (URI) params[3], (String) params[4], (String) params[5],
(List<String>) params[6]);
eventName = "EVENT_DISCOVER_BEFORE";
} else if (event == ResourceListener.EVENT_DISCOVER_AFTER) {
l.processDiscoverEventAfter((Map<? extends ServerResource, Map<String, String>>) params[0]);
eventName = "EVENT_DISCOVER_AFTER";
} else if (event == ResourceListener.EVENT_DELETE_HOST_BEFORE) {
l.processDeleteHostEventBefore((HostVO) params[0]);
eventName = "EVENT_DELETE_HOST_BEFORE";
} else if (event == ResourceListener.EVENT_DELETE_HOST_AFTER) {
l.processDeletHostEventAfter((HostVO) params[0]);
eventName = "EVENT_DELETE_HOST_AFTER";
} else if (event == ResourceListener.EVENT_CANCEL_MAINTENANCE_BEFORE) {
l.processCancelMaintenaceEventBefore((Long) params[0]);
eventName = "EVENT_CANCEL_MAINTENANCE_BEFORE";
} else if (event == ResourceListener.EVENT_CANCEL_MAINTENANCE_AFTER) {
l.processCancelMaintenaceEventAfter((Long) params[0]);
eventName = "EVENT_CANCEL_MAINTENANCE_AFTER";
} else if (event == ResourceListener.EVENT_PREPARE_MAINTENANCE_BEFORE) {
l.processPrepareMaintenaceEventBefore((Long) params[0]);
eventName = "EVENT_PREPARE_MAINTENANCE_BEFORE";
} else if (event == ResourceListener.EVENT_PREPARE_MAINTENANCE_AFTER) {
l.processPrepareMaintenaceEventAfter((Long) params[0]);
eventName = "EVENT_PREPARE_MAINTENANCE_AFTER";
} else {
throw new CloudRuntimeException("Unknown resource event:" + event);
}
s_logger.debug("Sent resource event " + eventName + " to listener " + l.getClass().getSimpleName());
}
}
@Override
public boolean updateHostPassword(UpdateHostPasswordCmd cmd) {
return _agentMgr.updateHostPassword(cmd);
}
@Override
public List<? extends Cluster> discoverCluster(AddClusterCmd cmd) throws IllegalArgumentException, DiscoveryException {
Long dcId = cmd.getZoneId();
Long podId = cmd.getPodId();
String clusterName = cmd.getClusterName();
String url = cmd.getUrl();
String username = cmd.getUsername();
String password = cmd.getPassword();
if (url != null) {
url = URLDecoder.decode(url);
}
URI uri = null;
// Check if the zone exists in the system
DataCenterVO zone = _dcDao.findById(dcId);
if (zone == null) {
throw new InvalidParameterValueException("Can't find zone by id " + dcId);
}
Account account = UserContext.current().getCaller();
if (Grouping.AllocationState.Disabled == zone.getAllocationState() && !_accountMgr.isRootAdmin(account.getType())) {
throw new PermissionDeniedException("Cannot perform this operation, Zone is currently disabled: " + dcId);
}
// Check if the pod exists in the system
if (podId != null) {
if (_podDao.findById(podId) == null) {
throw new InvalidParameterValueException("Can't find pod by id " + podId);
}
// check if pod belongs to the zone
HostPodVO pod = _podDao.findById(podId);
if (!Long.valueOf(pod.getDataCenterId()).equals(dcId)) {
throw new InvalidParameterValueException("Pod " + podId + " doesn't belong to the zone " + dcId);
}
}
// Verify cluster information and create a new cluster if needed
if (clusterName == null || clusterName.isEmpty()) {
throw new InvalidParameterValueException("Please specify cluster name");
}
if (cmd.getHypervisor() == null || cmd.getHypervisor().isEmpty()) {
throw new InvalidParameterValueException("Please specify a hypervisor");
}
Hypervisor.HypervisorType hypervisorType = Hypervisor.HypervisorType.getType(cmd.getHypervisor());
if (hypervisorType == null) {
s_logger.error("Unable to resolve " + cmd.getHypervisor() + " to a valid supported hypervisor type");
throw new InvalidParameterValueException("Unable to resolve " + cmd.getHypervisor() + " to a supported ");
}
Cluster.ClusterType clusterType = null;
if (cmd.getClusterType() != null && !cmd.getClusterType().isEmpty()) {
clusterType = Cluster.ClusterType.valueOf(cmd.getClusterType());
}
if (clusterType == null) {
clusterType = Cluster.ClusterType.CloudManaged;
}
Grouping.AllocationState allocationState = null;
if (cmd.getAllocationState() != null && !cmd.getAllocationState().isEmpty()) {
try {
allocationState = Grouping.AllocationState.valueOf(cmd.getAllocationState());
} catch (IllegalArgumentException ex) {
throw new InvalidParameterValueException("Unable to resolve Allocation State '" + cmd.getAllocationState() + "' to a supported state");
}
}
if (allocationState == null) {
allocationState = Grouping.AllocationState.Enabled;
}
Discoverer discoverer = getMatchingDiscover(hypervisorType);
if (discoverer == null) {
throw new InvalidParameterValueException("Could not find corresponding resource manager for " + cmd.getHypervisor());
}
List<ClusterVO> result = new ArrayList<ClusterVO>();
long clusterId = 0;
ClusterVO cluster = new ClusterVO(dcId, podId, clusterName);
cluster.setHypervisorType(cmd.getHypervisor());
cluster.setClusterType(clusterType);
cluster.setAllocationState(allocationState);
try {
cluster = _clusterDao.persist(cluster);
} catch (Exception e) {
// no longer tolerate exception during the cluster creation phase
throw new CloudRuntimeException("Unable to create cluster " + clusterName + " in pod " + podId + " and data center " + dcId, e);
}
clusterId = cluster.getId();
result.add(cluster);
if (clusterType == Cluster.ClusterType.CloudManaged) {
return result;
}
// save cluster details for later cluster/host cross-checking
Map<String, String> details = new HashMap<String, String>();
details.put("url", url);
details.put("username", username);
details.put("password", password);
_clusterDetailsDao.persist(cluster.getId(), details);
boolean success = false;
try {
try {
uri = new URI(UriUtils.encodeURIComponent(url));
if (uri.getScheme() == null) {
throw new InvalidParameterValueException("uri.scheme is null " + url + ", add http:// as a prefix");
} else if (uri.getScheme().equalsIgnoreCase("http")) {
if (uri.getHost() == null || uri.getHost().equalsIgnoreCase("") || uri.getPath() == null || uri.getPath().equalsIgnoreCase("")) {
throw new InvalidParameterValueException("Your host and/or path is wrong. Make sure it's of the format http://hostname/path");
}
}
} catch (URISyntaxException e) {
throw new InvalidParameterValueException(url + " is not a valid uri");
}
List<HostVO> hosts = new ArrayList<HostVO>();
Map<? extends ServerResource, Map<String, String>> resources = null;
resources = discoverer.find(dcId, podId, clusterId, uri, username, password, null);
if (resources != null) {
for (Map.Entry<? extends ServerResource, Map<String, String>> entry : resources.entrySet()) {
ServerResource resource = entry.getKey();
// For Hyper-V, we are here means agent have already started and connected to management server
if (hypervisorType == Hypervisor.HypervisorType.Hyperv) {
break;
}
AgentAttache attache = _agentMgr.simulateStart(null, resource, entry.getValue(), true, null, null, false);
if (attache != null) {
hosts.add(_hostDao.findById(attache.getId()));
}
discoverer.postDiscovery(hosts, _nodeId);
}
s_logger.info("External cluster has been successfully discovered by " + discoverer.getName());
success = true;
return result;
}
s_logger.warn("Unable to find the server resources at " + url);
throw new DiscoveryException("Unable to add the external cluster");
} finally {
if (!success) {
_clusterDetailsDao.deleteDetails(clusterId);
_clusterDao.remove(clusterId);
}
}
}
private Discoverer getMatchingDiscover(Hypervisor.HypervisorType hypervisorType) {
Enumeration<? extends Discoverer> en = _discoverers.enumeration();
while (en.hasMoreElements()) {
Discoverer discoverer = en.nextElement();
if (discoverer.getHypervisorType() == hypervisorType) {
return discoverer;
}
}
return null;
}
@Override
public List<? extends Host> discoverHosts(AddHostCmd cmd) throws IllegalArgumentException, DiscoveryException, InvalidParameterValueException {
Long dcId = cmd.getZoneId();
Long podId = cmd.getPodId();
Long clusterId = cmd.getClusterId();
String clusterName = cmd.getClusterName();
String url = cmd.getUrl();
String username = cmd.getUsername();
String password = cmd.getPassword();
List<String> hostTags = cmd.getHostTags();
dcId = _accountMgr.checkAccessAndSpecifyAuthority(UserContext.current().getCaller(), dcId);
// this is for standalone option
if (clusterName == null && clusterId == null) {
clusterName = "Standalone-" + url;
}
if (clusterId != null) {
ClusterVO cluster = _clusterDao.findById(clusterId);
if (cluster == null) {
throw new InvalidParameterValueException("can not fine cluster for clusterId " + clusterId);
} else {
if (cluster.getGuid() == null) {
List<HostVO> hosts = _hostDao.listByCluster(clusterId);
if (!hosts.isEmpty()) {
throw new CloudRuntimeException("Guid is not updated for cluster " + clusterId + " need to wait hosts in this cluster up");
}
}
}
}
String allocationState = cmd.getAllocationState();
if (allocationState == null) {
allocationState = Host.HostAllocationState.Enabled.toString();
}
return discoverHostsFull(dcId, podId, clusterId, clusterName, url, username, password, cmd.getHypervisor(), hostTags, cmd.getFullUrlParams(), allocationState);
}
@Override
public List<? extends Host> discoverHosts(AddSecondaryStorageCmd cmd) throws IllegalArgumentException, DiscoveryException, InvalidParameterValueException {
Long dcId = cmd.getZoneId();
String url = cmd.getUrl();
return discoverHostsFull(dcId, null, null, null, url, null, null, "SecondaryStorage", null, null, null);
}
private List<HostVO> discoverHostsFull(Long dcId, Long podId, Long clusterId, String clusterName, String url, String username, String password, String hypervisorType, List<String> hostTags,
Map<String, String> params, String allocationState) throws IllegalArgumentException, DiscoveryException, InvalidParameterValueException {
URI uri = null;
// Check if the zone exists in the system
DataCenterVO zone = _dcDao.findById(dcId);
if (zone == null) {
throw new InvalidParameterValueException("Can't find zone by id " + dcId);
}
Account account = UserContext.current().getCaller();
if (Grouping.AllocationState.Disabled == zone.getAllocationState() && !_accountMgr.isRootAdmin(account.getType())) {
throw new PermissionDeniedException("Cannot perform this operation, Zone is currently disabled: " + dcId);
}
// Check if the pod exists in the system
if (podId != null) {
if (_podDao.findById(podId) == null) {
throw new InvalidParameterValueException("Can't find pod by id " + podId);
}
// check if pod belongs to the zone
HostPodVO pod = _podDao.findById(podId);
if (!Long.valueOf(pod.getDataCenterId()).equals(dcId)) {
throw new InvalidParameterValueException("Pod " + podId + " doesn't belong to the zone " + dcId);
}
}
// Verify cluster information and create a new cluster if needed
if (clusterName != null && clusterId != null) {
throw new InvalidParameterValueException("Can't specify cluster by both id and name");
}
if (hypervisorType == null || hypervisorType.isEmpty()) {
throw new InvalidParameterValueException("Need to specify Hypervisor Type");
}
if ((clusterName != null || clusterId != null) && podId == null) {
throw new InvalidParameterValueException("Can't specify cluster without specifying the pod");
}
if (clusterId != null) {
if (_clusterDao.findById(clusterId) == null) {
throw new InvalidParameterValueException("Can't find cluster by id " + clusterId);
}
if(hypervisorType.equalsIgnoreCase(HypervisorType.VMware.toString())) {
// VMware only allows adding host to an existing cluster, as we already have a lot of information
// in cluster object, to simplify user input, we will construct neccessary information here
Map<String, String> clusterDetails = this._clusterDetailsDao.findDetails(clusterId);
username = clusterDetails.get("username");
assert(username != null);
password = clusterDetails.get("password");
assert(password != null);
try {
uri = new URI(UriUtils.encodeURIComponent(url));
url = clusterDetails.get("url") + "/" + uri.getHost();
} catch (URISyntaxException e) {
throw new InvalidParameterValueException(url + " is not a valid uri");
}
}
}
if (clusterName != null) {
ClusterVO cluster = new ClusterVO(dcId, podId, clusterName);
cluster.setHypervisorType(hypervisorType);
try {
cluster = _clusterDao.persist(cluster);
} catch (Exception e) {
cluster = _clusterDao.findBy(clusterName, podId);
if (cluster == null) {
throw new CloudRuntimeException("Unable to create cluster " + clusterName + " in pod " + podId + " and data center " + dcId, e);
}
}
clusterId = cluster.getId();
}
try {
uri = new URI(UriUtils.encodeURIComponent(url));
if (uri.getScheme() == null) {
throw new InvalidParameterValueException("uri.scheme is null " + url + ", add nfs:// as a prefix");
} else if (uri.getScheme().equalsIgnoreCase("nfs")) {
if (uri.getHost() == null || uri.getHost().equalsIgnoreCase("") || uri.getPath() == null || uri.getPath().equalsIgnoreCase("")) {
throw new InvalidParameterValueException("Your host and/or path is wrong. Make sure it's of the format nfs://hostname/path");
}
}
} catch (URISyntaxException e) {
throw new InvalidParameterValueException(url + " is not a valid uri");
}
List<HostVO> hosts = new ArrayList<HostVO>();
s_logger.info("Trying to add a new host at " + url + " in data center " + dcId);
Enumeration<? extends Discoverer> en = _discoverers.enumeration();
boolean isHypervisorTypeSupported = false;
while (en.hasMoreElements()) {
Discoverer discoverer = en.nextElement();
if (params != null) {
discoverer.putParam(params);
}
if (!discoverer.matchHypervisor(hypervisorType)) {
continue;
}
isHypervisorTypeSupported = true;
Map<? extends ServerResource, Map<String, String>> resources = null;
processResourceEvent(ResourceListener.EVENT_DISCOVER_BEFORE, dcId, podId, clusterId, uri, username, password, hostTags);
try {
resources = discoverer.find(dcId, podId, clusterId, uri, username, password, hostTags);
} catch(DiscoveryException e) {
throw e;
} catch (Exception e) {
s_logger.info("Exception in host discovery process with discoverer: " + discoverer.getName() + ", skip to another discoverer if there is any");
}
processResourceEvent(ResourceListener.EVENT_DISCOVER_AFTER, resources);
if (resources != null) {
for (Map.Entry<? extends ServerResource, Map<String, String>> entry : resources.entrySet()) {
ServerResource resource = entry.getKey();
/*
* For KVM, if we go to here, that means kvm agent is already connected to mgt svr.
*/
if (resource instanceof KvmDummyResourceBase) {
Map<String, String> details = entry.getValue();
String guid = details.get("guid");
List<HostVO> kvmHosts = _hostDao.listBy(Host.Type.Routing, clusterId, podId, dcId);
for (HostVO host : kvmHosts) {
if (host.getGuid().equalsIgnoreCase(guid)) {
hosts.add(host);
return hosts;
}
}
return null;
}
AgentAttache attache = _agentMgr.simulateStart(null, resource, entry.getValue(), true, hostTags, allocationState, false);
if (attache != null) {
hosts.add(_hostDao.findById(attache.getId()));
}
discoverer.postDiscovery(hosts, _nodeId);
}
s_logger.info("server resources successfully discovered by " + discoverer.getName());
return hosts;
}
}
if (!isHypervisorTypeSupported) {
String msg = "Do not support HypervisorType " + hypervisorType + " for " + url;
s_logger.warn(msg);
throw new DiscoveryException(msg);
}
s_logger.warn("Unable to find the server resources at " + url);
throw new DiscoveryException("Unable to add the host");
}
@Override
public Host getHost(long hostId) {
return _hostDao.findById(hostId);
}
@Override
public boolean deleteHost(long hostId, boolean isForced, boolean forceDestroy) {
User caller = _accountMgr.getActiveUser(UserContext.current().getCallerUserId());
// Verify that host exists
HostVO host = _hostDao.findById(hostId);
if (host == null) {
throw new InvalidParameterValueException("Host with id " + hostId + " doesn't exist");
}
_accountMgr.checkAccessAndSpecifyAuthority(UserContext.current().getCaller(), host.getDataCenterId());
processResourceEvent(ResourceListener.EVENT_DELETE_HOST_BEFORE, host);
boolean res = false;
if (Host.Type.SecondaryStorage.equals(host.getType())) {
_secondaryStorageMgr.deleteHost(hostId);
res = true;
} else {
res = _agentMgr.deleteHost(hostId, isForced, forceDestroy, caller);
}
processResourceEvent(ResourceListener.EVENT_DELETE_HOST_AFTER, host);
return res;
}
@Override
@DB
public boolean deleteCluster(DeleteClusterCmd cmd) {
Transaction txn = Transaction.currentTxn();
try {
txn.start();
ClusterVO cluster = _clusterDao.lockRow(cmd.getId(), true);
if (cluster == null) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Cluster: " + cmd.getId() + " does not even exist. Delete call is ignored.");
}
txn.rollback();
return true;
}
List<HostVO> hosts = _hostDao.listByCluster(cmd.getId());
if (hosts.size() > 0) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Cluster: " + cmd.getId() + " still has hosts");
}
txn.rollback();
return false;
}
_clusterDao.remove(cmd.getId());
txn.commit();
return true;
} catch (Throwable t) {
s_logger.error("Unable to delete cluster: " + cmd.getId(), t);
txn.rollback();
return false;
}
}
@Override
@DB
public Cluster updateCluster(Cluster clusterToUpdate, String clusterType, String hypervisor, String allocationState, String managedstate) {
ClusterVO cluster = (ClusterVO) clusterToUpdate;
// Verify cluster information and update the cluster if needed
boolean doUpdate = false;
if (hypervisor != null && !hypervisor.isEmpty()) {
Hypervisor.HypervisorType hypervisorType = Hypervisor.HypervisorType.getType(hypervisor);
if (hypervisorType == null) {
s_logger.error("Unable to resolve " + hypervisor + " to a valid supported hypervisor type");
throw new InvalidParameterValueException("Unable to resolve " + hypervisor + " to a supported type");
} else {
cluster.setHypervisorType(hypervisor);
doUpdate = true;
}
}
Cluster.ClusterType newClusterType = null;
if (clusterType != null && !clusterType.isEmpty()) {
try {
newClusterType = Cluster.ClusterType.valueOf(clusterType);
} catch (IllegalArgumentException ex) {
throw new InvalidParameterValueException("Unable to resolve " + clusterType + " to a supported type");
}
if (newClusterType == null) {
s_logger.error("Unable to resolve " + clusterType + " to a valid supported cluster type");
throw new InvalidParameterValueException("Unable to resolve " + clusterType + " to a supported type");
} else {
cluster.setClusterType(newClusterType);
doUpdate = true;
}
}
Grouping.AllocationState newAllocationState = null;
if (allocationState != null && !allocationState.isEmpty()) {
try {
newAllocationState = Grouping.AllocationState.valueOf(allocationState);
} catch (IllegalArgumentException ex) {
throw new InvalidParameterValueException("Unable to resolve Allocation State '" + allocationState + "' to a supported state");
}
if (newAllocationState == null) {
s_logger.error("Unable to resolve " + allocationState + " to a valid supported allocation State");
throw new InvalidParameterValueException("Unable to resolve " + allocationState + " to a supported state");
} else {
cluster.setAllocationState(newAllocationState);
doUpdate = true;
}
}
Managed.ManagedState newManagedState = null;
Managed.ManagedState oldManagedState = cluster.getManagedState();
if (managedstate != null && !managedstate.isEmpty()) {
try {
newManagedState = Managed.ManagedState.valueOf(managedstate);
} catch (IllegalArgumentException ex) {
throw new InvalidParameterValueException("Unable to resolve Managed State '" + managedstate + "' to a supported state");
}
if (newManagedState == null) {
s_logger.error("Unable to resolve Managed State '" + managedstate + "' to a supported state");
throw new InvalidParameterValueException("Unable to resolve Managed State '" + managedstate + "' to a supported state");
} else {
doUpdate = true;
}
}
if (doUpdate) {
Transaction txn = Transaction.currentTxn();
try {
txn.start();
_clusterDao.update(cluster.getId(), cluster);
txn.commit();
} catch (Exception e) {
s_logger.error("Unable to update cluster due to " + e.getMessage(), e);
throw new CloudRuntimeException("Failed to update cluster. Please contact Cloud Support.");
}
}
if( newManagedState != null && !newManagedState.equals(oldManagedState)) {
Transaction txn = Transaction.currentTxn();
if( newManagedState.equals(Managed.ManagedState.Unmanaged) ) {
boolean success = false;
try {
txn.start();
cluster.setManagedState(Managed.ManagedState.PrepareUnmanaged);
_clusterDao.update(cluster.getId(), cluster);
txn.commit();
List<HostVO> hosts = _hostDao.listBy(Host.Type.Routing, cluster.getId(), cluster.getPodId(), cluster.getDataCenterId());
for( HostVO host : hosts ) {
if(host.getType().equals(Host.Type.Routing) && !host.getStatus().equals(Status.Down) && !host.getStatus().equals(Status.Disconnected)
&& !host.getStatus().equals(Status.Up) && !host.getStatus().equals(Status.Alert) ) {
String msg = "host " + host.getPrivateIpAddress() + " should not be in " + host.getStatus().toString() + " status";
throw new CloudRuntimeException("PrepareUnmanaged Failed due to " + msg);
}
}
for( HostVO host : hosts ) {
if ( host.getStatus().equals(Status.Up )) {
_agentMgr.disconnect(host.getId());
}
}
int retry = 10;
boolean lsuccess = true;
for ( int i = 0; i < retry; i++) {
lsuccess = true;
try {
Thread.sleep(20 * 1000);
} catch (Exception e) {
}
hosts = _hostDao.listBy(Host.Type.Routing, cluster.getId(), cluster.getPodId(), cluster.getDataCenterId());
for( HostVO host : hosts ) {
if ( !host.getStatus().equals(Status.Down) && !host.getStatus().equals(Status.Disconnected)
&& !host.getStatus().equals(Status.Alert)) {
lsuccess = false;
break;
}
}
if( lsuccess == true ) {
success = true;
break;
}
}
if ( success == false ) {
throw new CloudRuntimeException("PrepareUnmanaged Failed due to some hosts are still in UP status after 5 Minutes, please try later ");
}
} finally {
txn.start();
cluster.setManagedState(success? Managed.ManagedState.Unmanaged : Managed.ManagedState.PrepareUnmanagedError);
_clusterDao.update(cluster.getId(), cluster);
txn.commit();
}
} else if( newManagedState.equals(Managed.ManagedState.Managed)) {
txn.start();
cluster.setManagedState(Managed.ManagedState.Managed);
_clusterDao.update(cluster.getId(), cluster);
txn.commit();
}
}
return cluster;
}
@Override
public Host cancelMaintenance(CancelMaintenanceCmd cmd) {
Long hostId = cmd.getId();
// verify input parameters
HostVO host = _hostDao.findById(hostId);
if (host == null || host.getRemoved() != null) {
throw new InvalidParameterValueException("Host with id " + hostId.toString() + " doesn't exist");
}
processResourceEvent(ResourceListener.EVENT_CANCEL_MAINTENANCE_BEFORE, hostId);
boolean success = _agentMgr.cancelMaintenance(hostId);
processResourceEvent(ResourceListener.EVENT_CANCEL_MAINTENANCE_AFTER, hostId);
if (!success) {
throw new CloudRuntimeException("Internal error cancelling maintenance.");
}
return host;
}
@Override
public Host reconnectHost(ReconnectHostCmd cmd) throws AgentUnavailableException {
Long hostId = cmd.getId();
HostVO host = _hostDao.findById(hostId);
if (host == null) {
throw new InvalidParameterValueException("Host with id " + hostId.toString() + " doesn't exist");
}
boolean result = _agentMgr.reconnect(hostId);
if (result) {
return host;
}
throw new CloudRuntimeException("Failed to reconnect host with id " + hostId.toString() + ", internal error.");
}
@Override
public Host maintain(PrepareForMaintenanceCmd cmd) {
Long hostId = cmd.getId();
HostVO host = _hostDao.findById(hostId);
if (host == null) {
s_logger.debug("Unable to find host " + hostId);
throw new InvalidParameterValueException("Unable to find host with ID: " + hostId + ". Please specify a valid host ID.");
}
if (_hostDao.countBy(host.getClusterId(), Status.PrepareForMaintenance, Status.ErrorInMaintenance) > 0) {
throw new InvalidParameterValueException("There are other servers in PrepareForMaintenance OR ErrorInMaintenance STATUS in cluster " + host.getClusterId());
}
if (_storageMgr.isLocalStorageActiveOnHost(host)) {
throw new InvalidParameterValueException("There are active VMs using the host's local storage pool. Please stop all VMs on this host that use local storage.");
}
try {
processResourceEvent(ResourceListener.EVENT_PREPARE_MAINTENANCE_BEFORE, hostId);
if (_agentMgr.maintain(hostId)) {
processResourceEvent(ResourceListener.EVENT_CANCEL_MAINTENANCE_AFTER, hostId);
return _hostDao.findById(hostId);
} else {
throw new CloudRuntimeException("Unable to prepare for maintenance host " + hostId);
}
} catch (AgentUnavailableException e) {
throw new CloudRuntimeException("Unable to prepare for maintenance host " + hostId);
}
}
@Override
public Host updateHost(UpdateHostCmd cmd) {
Long hostId = cmd.getId();
Long guestOSCategoryId = cmd.getOsCategoryId();
if (guestOSCategoryId != null) {
// Verify that the host exists
HostVO host = _hostDao.findById(hostId);
if (host == null) {
throw new InvalidParameterValueException("Host with id " + hostId + " doesn't exist");
}
// Verify that the guest OS Category exists
if (guestOSCategoryId > 0) {
if (_guestOSCategoryDao.findById(guestOSCategoryId) == null) {
throw new InvalidParameterValueException("Please specify a valid guest OS category.");
}
}
GuestOSCategoryVO guestOSCategory = _guestOSCategoryDao.findById(guestOSCategoryId);
Map<String, String> hostDetails = _hostDetailsDao.findDetails(hostId);
if (guestOSCategory != null) {
// Save a new entry for guest.os.category.id
hostDetails.put("guest.os.category.id", String.valueOf(guestOSCategory.getId()));
} else {
// Delete any existing entry for guest.os.category.id
hostDetails.remove("guest.os.category.id");
}
_hostDetailsDao.persist(hostId, hostDetails);
}
String allocationState = cmd.getAllocationState();
if (allocationState != null) {
// Verify that the host exists
HostVO host = _hostDao.findById(hostId);
if (host == null) {
throw new InvalidParameterValueException("Host with id " + hostId + " doesn't exist");
}
try {
HostAllocationState newAllocationState = Host.HostAllocationState.valueOf(allocationState);
if (newAllocationState == null) {
s_logger.error("Unable to resolve " + allocationState + " to a valid supported allocation State");
throw new InvalidParameterValueException("Unable to resolve " + allocationState + " to a supported state");
} else {
host.setHostAllocationState(newAllocationState);
}
} catch (IllegalArgumentException ex) {
s_logger.error("Unable to resolve " + allocationState + " to a valid supported allocation State");
throw new InvalidParameterValueException("Unable to resolve " + allocationState + " to a supported state");
}
_hostDao.update(hostId, host);
}
List<String> hostTags = cmd.getHostTags();
if (hostTags != null) {
// Verify that the host exists
HostVO host = _hostDao.findById(hostId);
if (host == null) {
throw new InvalidParameterValueException("Host with id " + hostId + " doesn't exist");
}
if(s_logger.isDebugEnabled()){
s_logger.debug("Updating Host Tags to :"+hostTags);
}
_hostTagsDao.persist(hostId, hostTags);
}
HostVO updatedHost = _hostDao.findById(hostId);
return updatedHost;
}
@Override
public Cluster getCluster(Long clusterId) {
return _clusterDao.findById(clusterId);
}
@Override
public boolean configure(String name, Map<String, Object> params) throws ConfigurationException {
_name = name;
return true;
}
@Override
public boolean start() {
return true;
}
@Override
public boolean stop() {
return true;
}
@Override
public String getName() {
return _name;
}
}