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cloudstack/server/src/com/cloud/storage/StorageManagerImpl.java
Alex Huang 867b43dcf9 more changes for the rewrite.
2010-08-16 11:28:11 -07:00

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/**
* 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.storage;
import java.net.URI;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.Enumeration;
import java.util.Formatter;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import javax.ejb.Local;
import javax.naming.ConfigurationException;
import org.apache.log4j.Logger;
import com.cloud.agent.AgentManager;
import com.cloud.agent.api.Answer;
import com.cloud.agent.api.BackupSnapshotCommand;
import com.cloud.agent.api.Command;
import com.cloud.agent.api.CreateVolumeFromSnapshotAnswer;
import com.cloud.agent.api.CreateVolumeFromSnapshotCommand;
import com.cloud.agent.api.DeleteStoragePoolCommand;
import com.cloud.agent.api.ManageSnapshotCommand;
import com.cloud.agent.api.ModifyStoragePoolAnswer;
import com.cloud.agent.api.ModifyStoragePoolCommand;
import com.cloud.agent.api.storage.CopyVolumeAnswer;
import com.cloud.agent.api.storage.CopyVolumeCommand;
import com.cloud.agent.api.storage.CreateAnswer;
import com.cloud.agent.api.storage.CreateCommand;
import com.cloud.agent.api.storage.DeleteTemplateCommand;
import com.cloud.agent.api.storage.DestroyCommand;
import com.cloud.agent.api.to.VolumeTO;
import com.cloud.alert.AlertManager;
import com.cloud.api.BaseCmd;
import com.cloud.async.AsyncInstanceCreateStatus;
import com.cloud.async.AsyncJobExecutor;
import com.cloud.async.AsyncJobManager;
import com.cloud.async.AsyncJobVO;
import com.cloud.async.BaseAsyncJobExecutor;
import com.cloud.capacity.CapacityVO;
import com.cloud.capacity.dao.CapacityDao;
import com.cloud.configuration.Config;
import com.cloud.configuration.ConfigurationManager;
import com.cloud.configuration.ResourceCount.ResourceType;
import com.cloud.configuration.dao.ConfigurationDao;
import com.cloud.consoleproxy.ConsoleProxyManager;
import com.cloud.dc.DataCenterVO;
import com.cloud.dc.HostPodVO;
import com.cloud.dc.dao.DataCenterDao;
import com.cloud.dc.dao.HostPodDao;
import com.cloud.event.EventState;
import com.cloud.event.EventTypes;
import com.cloud.event.EventVO;
import com.cloud.event.dao.EventDao;
import com.cloud.exception.AgentUnavailableException;
import com.cloud.exception.ConcurrentOperationException;
import com.cloud.exception.DiscoveryException;
import com.cloud.exception.InsufficientCapacityException;
import com.cloud.exception.InternalErrorException;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.exception.OperationTimedoutException;
import com.cloud.exception.ResourceAllocationException;
import com.cloud.exception.ResourceInUseException;
import com.cloud.exception.StorageUnavailableException;
import com.cloud.host.Host;
import com.cloud.host.Host.Type;
import com.cloud.host.HostVO;
import com.cloud.host.Status;
import com.cloud.host.dao.DetailsDao;
import com.cloud.host.dao.HostDao;
import com.cloud.hypervisor.Hypervisor;
import com.cloud.network.NetworkManager;
import com.cloud.offering.ServiceOffering;
import com.cloud.service.ServiceOfferingVO;
import com.cloud.service.dao.ServiceOfferingDao;
import com.cloud.storage.Storage.ImageFormat;
import com.cloud.storage.Storage.StoragePoolType;
import com.cloud.storage.Volume.MirrorState;
import com.cloud.storage.Volume.VolumeType;
import com.cloud.storage.allocator.StoragePoolAllocator;
import com.cloud.storage.dao.DiskOfferingDao;
import com.cloud.storage.dao.SnapshotDao;
import com.cloud.storage.dao.StoragePoolDao;
import com.cloud.storage.dao.StoragePoolHostDao;
import com.cloud.storage.dao.VMTemplateDao;
import com.cloud.storage.dao.VMTemplateHostDao;
import com.cloud.storage.dao.VMTemplatePoolDao;
import com.cloud.storage.dao.VolumeDao;
import com.cloud.storage.listener.StoragePoolMonitor;
import com.cloud.storage.secondary.SecondaryStorageVmManager;
import com.cloud.storage.snapshot.SnapshotManager;
import com.cloud.storage.snapshot.SnapshotScheduler;
import com.cloud.template.TemplateManager;
import com.cloud.user.Account;
import com.cloud.user.AccountManager;
import com.cloud.user.AccountVO;
import com.cloud.user.User;
import com.cloud.user.dao.AccountDao;
import com.cloud.uservm.UserVm;
import com.cloud.utils.NumbersUtil;
import com.cloud.utils.Pair;
import com.cloud.utils.component.Adapters;
import com.cloud.utils.component.ComponentLocator;
import com.cloud.utils.component.Inject;
import com.cloud.utils.concurrency.NamedThreadFactory;
import com.cloud.utils.db.DB;
import com.cloud.utils.db.GlobalLock;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.Transaction;
import com.cloud.utils.exception.CloudRuntimeException;
import com.cloud.utils.exception.ExecutionException;
import com.cloud.vm.DiskCharacteristics;
import com.cloud.vm.State;
import com.cloud.vm.UserVmManager;
import com.cloud.vm.UserVmVO;
import com.cloud.vm.VMInstanceVO;
import com.cloud.vm.VirtualMachine;
import com.cloud.vm.dao.ConsoleProxyDao;
import com.cloud.vm.dao.UserVmDao;
import com.cloud.vm.dao.VMInstanceDao;
@Local(value = { StorageManager.class })
public class StorageManagerImpl implements StorageManager {
private static final Logger s_logger = Logger.getLogger(StorageManagerImpl.class);
protected String _name;
@Inject protected UserVmManager _userVmMgr;
@Inject protected AgentManager _agentMgr;
@Inject protected TemplateManager _tmpltMgr;
@Inject protected AsyncJobManager _asyncMgr;
@Inject protected SnapshotManager _snapshotMgr;
@Inject protected SnapshotScheduler _snapshotScheduler;
@Inject protected AccountManager _accountMgr;
@Inject protected ConfigurationManager _configMgr;
@Inject protected ConsoleProxyManager _consoleProxyMgr;
@Inject protected SecondaryStorageVmManager _secStorageMgr;
@Inject protected NetworkManager _networkMgr;
@Inject protected VolumeDao _volsDao;
@Inject protected HostDao _hostDao;
@Inject protected ConsoleProxyDao _consoleProxyDao;
@Inject protected DetailsDao _detailsDao;
@Inject protected SnapshotDao _snapshotDao;
protected Adapters<StoragePoolAllocator> _storagePoolAllocators;
protected Adapters<StoragePoolDiscoverer> _discoverers;
@Inject protected StoragePoolHostDao _storagePoolHostDao;
@Inject protected AlertManager _alertMgr;
@Inject protected VMTemplateHostDao _vmTemplateHostDao = null;
@Inject protected VMTemplatePoolDao _vmTemplatePoolDao = null;
@Inject protected VMTemplateDao _vmTemplateDao = null;
@Inject protected StoragePoolHostDao _poolHostDao = null;
@Inject protected UserVmDao _userVmDao;
@Inject protected VMInstanceDao _vmInstanceDao;
@Inject protected StoragePoolDao _storagePoolDao = null;
@Inject protected CapacityDao _capacityDao;
@Inject protected DiskOfferingDao _diskOfferingDao;
@Inject protected AccountDao _accountDao;
@Inject protected EventDao _eventDao = null;
@Inject protected DataCenterDao _dcDao = null;
@Inject protected HostPodDao _podDao = null;
@Inject protected VMTemplateDao _templateDao;
@Inject protected VMTemplateHostDao _templateHostDao;
@Inject protected ServiceOfferingDao _offeringDao;
protected SearchBuilder<VMTemplateHostVO> HostTemplateStatesSearch;
protected SearchBuilder<StoragePoolVO> PoolsUsedByVmSearch;
ScheduledExecutorService _executor = null;
boolean _storageCleanupEnabled;
int _storageCleanupInterval;
int _storagePoolAcquisitionWaitSeconds = 1800; // 30 minutes
protected int _retry = 2;
protected int _pingInterval = 60; // seconds
protected int _hostRetry;
protected int _overProvisioningFactor = 1;
private int _totalRetries;
private int _pauseInterval;
private final boolean _shouldBeSnapshotCapable = true;
private Hypervisor.Type _hypervisorType;
@Override
public boolean share(VMInstanceVO vm, List<VolumeVO> vols, HostVO host, boolean cancelPreviousShare) {
//this check is done for maintenance mode for primary storage
//if any one of the volume is unusable, we return false
//if we return false, the allocator will try to switch to another PS if available
for(VolumeVO vol: vols)
{
if(vol.getRemoved()!=null)
{
s_logger.warn("Volume id:"+vol.getId()+" is removed, cannot share on this instance");
//not ok to share
return false;
}
}
//ok to share
return true;
}
protected void setDeviceId(VolumeVO vol) {
//TODO: Need to figure out what to do here.
vol.setDeviceId(1l);
}
@DB
public List<VolumeVO> allocate(DiskCharacteristics rootDisk, List<DiskCharacteristics> dataDisks, VMInstanceVO vm, DataCenterVO dc, AccountVO account) {
ArrayList<VolumeVO> vols = new ArrayList<VolumeVO>(dataDisks.size() + 1);
VolumeVO dataVol = null;
VolumeVO rootVol = null;
long deviceId = 0;
Transaction txn = Transaction.currentTxn();
txn.start();
rootVol = new VolumeVO(VolumeType.ROOT, rootDisk.getName(), dc.getId(), account.getDomainId(), account.getId(), rootDisk.getDiskOfferingId(), rootDisk.getSize());
if (rootDisk.getTemplateId() != null) {
rootVol.setTemplateId(rootDisk.getTemplateId());
}
rootVol.setInstanceId(vm.getId());
rootVol.setDeviceId(deviceId++);
rootVol = _volsDao.persist(rootVol);
vols.add(rootVol);
for (DiskCharacteristics dataDisk : dataDisks) {
dataVol = new VolumeVO(VolumeType.DATADISK, dataDisk.getName(), dc.getId(), account.getDomainId(), account.getId(), dataDisk.getDiskOfferingId(), dataDisk.getSize());
dataVol.setDeviceId(deviceId++);
dataVol = _volsDao.persist(dataVol);
dataVol.setInstanceId(vm.getId());
vols.add(dataVol);
}
txn.commit();
return vols;
}
public List<VolumeVO> prepare(VMInstanceVO vm, HostVO host) {
List<VolumeVO> vols = _volsDao.findCreatedByInstance(vm.getId());
List<VolumeVO> recreateVols = new ArrayList<VolumeVO>(vols.size());
for (VolumeVO vol : vols) {
if (!vol.isRecreatable()) {
return vols;
}
StoragePoolHostVO ph = _storagePoolHostDao.findByPoolHost(vol.getPoolId(), host.getId());
if (ph == null) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Must recreate " + vol + " since " + vol.getPoolId() + " has is not hooked up with host " + host.getId());
}
recreateVols.add(vol);
}
}
if (recreateVols.size() == 0) {
s_logger.debug("No need to recreate the volumes");
return vols;
}
List<VolumeVO> createds = new ArrayList<VolumeVO>(recreateVols.size());
for (VolumeVO vol : recreateVols) {
VolumeVO create = new VolumeVO(vol.getVolumeType(), vol.getInstanceId(), vol.getTemplateId(), vol.getName(), vol.getDataCenterId(), host.getPodId(), vol.getAccountId(), vol.getDomainId(), vol.isRecreatable());
create.setDiskOfferingId(vol.getDiskOfferingId());
create.setDeviceId(vol.getDeviceId());
create = _volsDao.persist(create);
VMTemplateVO template = _templateDao.findById(create.getTemplateId());
DataCenterVO dc = _dcDao.findById(create.getDataCenterId());
HostPodVO pod = _podDao.findById(host.getPodId());
DiskOfferingVO diskOffering = null;
diskOffering = _diskOfferingDao.findById(vol.getDiskOfferingId());
ServiceOfferingVO offering;
if (vm instanceof UserVmVO) {
offering = _offeringDao.findById(((UserVmVO)vm).getServiceOfferingId());
} else {
offering = _offeringDao.findById(vol.getDiskOfferingId());
}
VolumeVO created = createVolume(create, vm, template, dc, pod, host.getClusterId(), offering, diskOffering, new ArrayList<StoragePoolVO>(),0);
if (created == null) {
break;
}
createds.add(created);
}
for (VolumeVO vol : recreateVols) {
_volsDao.remove(vol.getId());
}
return createds;
}
@Override
public List<Pair<VolumeVO, StoragePoolVO>> isStoredOn(VMInstanceVO vm) {
List<Pair<VolumeVO, StoragePoolVO>> lst = new ArrayList<Pair<VolumeVO, StoragePoolVO>>();
List<VolumeVO> vols = _volsDao.findByInstance(vm.getId());
for (VolumeVO vol : vols) {
StoragePoolVO pool = _storagePoolDao.findById(vol.getPoolId());
lst.add(new Pair<VolumeVO, StoragePoolVO>(vol, pool));
}
return lst;
}
@Override
public boolean isLocalStorageActiveOnHost(HostVO host) {
List<StoragePoolHostVO> storagePoolHostRefs = _storagePoolHostDao.listByHostId(host.getId());
for (StoragePoolHostVO storagePoolHostRef : storagePoolHostRefs) {
StoragePoolVO storagePool = _storagePoolDao.findById(storagePoolHostRef.getPoolId());
if (storagePool.getPoolType() == StoragePoolType.LVM) {
SearchBuilder<VolumeVO> volumeSB = _volsDao.createSearchBuilder();
volumeSB.and("poolId", volumeSB.entity().getPoolId(), SearchCriteria.Op.EQ);
volumeSB.and("removed", volumeSB.entity().getRemoved(), SearchCriteria.Op.NULL);
SearchBuilder<VMInstanceVO> activeVmSB = _vmInstanceDao.createSearchBuilder();
activeVmSB.and("state", activeVmSB.entity().getState(), SearchCriteria.Op.IN);
volumeSB.join("activeVmSB", activeVmSB, volumeSB.entity().getInstanceId(), activeVmSB.entity().getId());
SearchCriteria<VolumeVO> volumeSC = volumeSB.create();
volumeSC.setParameters("poolId", storagePool.getId());
volumeSC.setJoinParameters("activeVmSB", "state", new Object[] {State.Creating, State.Starting, State.Running, State.Stopping, State.Migrating});
List<VolumeVO> volumes = _volsDao.search(volumeSC, null);
if (volumes.size() > 0) {
return true;
}
}
}
return false;
}
@Override
public List<VolumeVO> unshare(VMInstanceVO vm, HostVO host) {
final List<VolumeVO> vols = _volsDao.findCreatedByInstance(vm.getId());
if (vols.size() == 0) {
return vols;
}
return unshare(vm, vols, host) ? vols : null;
}
protected StoragePoolVO findStoragePool(DiskCharacteristics dskCh, final DataCenterVO dc, HostPodVO pod, Long clusterId, final ServiceOffering offering, final VMInstanceVO vm, final VMTemplateVO template, final Set<StoragePool> avoid) {
Enumeration<StoragePoolAllocator> en = _storagePoolAllocators.enumeration();
while (en.hasMoreElements()) {
final StoragePoolAllocator allocator = en.nextElement();
final StoragePool pool = allocator.allocateToPool(dskCh, offering, dc, pod, clusterId, vm, template, avoid);
if (pool != null) {
return (StoragePoolVO) pool;
}
}
return null;
}
protected Long findHostIdForStoragePool(StoragePoolVO pool) {
List<StoragePoolHostVO> poolHosts = _poolHostDao.listByHostStatus(pool.getId(), Status.Up);
if (poolHosts.size() == 0) {
return null;
} else {
return poolHosts.get(0).getHostId();
}
}
@Override
public Answer[] sendToPool(StoragePoolVO pool, Command[] cmds, boolean stopOnError) {
List<StoragePoolHostVO> poolHosts = _poolHostDao.listByHostStatus(pool.getId(), Status.Up);
Collections.shuffle(poolHosts);
for (StoragePoolHostVO poolHost: poolHosts) {
try {
return _agentMgr.send(poolHost.getHostId(), cmds, stopOnError);
} catch (AgentUnavailableException e) {
s_logger.debug("Moving on because unable to send to " + poolHost.getHostId() + " due to " + e.getMessage());
} catch (OperationTimedoutException e) {
s_logger.debug("Moving on because unable to send to " + poolHost.getHostId() + " due to " + e.getMessage());
}
}
if( !poolHosts.isEmpty() ) {
s_logger.warn("Unable to send commands to the pool because we ran out of hosts to send to");
}
return null;
}
@Override
public Answer sendToPool(StoragePoolVO pool, Command cmd) {
Command[] cmds = new Command[]{cmd};
Answer[] answers = sendToPool(pool, cmds, true);
if (answers == null) {
return null;
}
return answers[0];
}
protected DiskCharacteristics createDiskCharacteristics(VolumeVO volume, VMTemplateVO template, DataCenterVO dc, DiskOfferingVO diskOffering) {
if (volume.getVolumeType() == VolumeType.ROOT && Storage.ImageFormat.ISO != template.getFormat()) {
SearchCriteria<VMTemplateHostVO> sc = HostTemplateStatesSearch.create();
sc.setParameters("id", template.getId());
sc.setParameters("state", com.cloud.storage.VMTemplateStorageResourceAssoc.Status.DOWNLOADED);
sc.setJoinParameters("host", "dcId", dc.getId());
List<VMTemplateHostVO> sss = _vmTemplateHostDao.search(sc, null);
if (sss.size() == 0) {
throw new CloudRuntimeException("Template " + template.getName() + " has not been completely downloaded to zone " + dc.getId());
}
VMTemplateHostVO ss = sss.get(0);
return new DiskCharacteristics(volume.getVolumeType(), volume.getName(), diskOffering.getId(), ss.getSize(), diskOffering.getTagsArray(), diskOffering.getUseLocalStorage(), diskOffering.isRecreatable(), Storage.ImageFormat.ISO != template.getFormat() ? template.getId() : null);
} else {
return new DiskCharacteristics(volume.getVolumeType(), volume.getName(), diskOffering.getId(), diskOffering.getDiskSizeInBytes(), diskOffering.getTagsArray(), diskOffering.getUseLocalStorage(), diskOffering.isRecreatable(), null);
}
}
@Override
public boolean canVmRestartOnAnotherServer(long vmId) {
List<VolumeVO> vols = _volsDao.findCreatedByInstance(vmId);
for (VolumeVO vol : vols) {
if (!vol.isRecreatable() && !vol.getPoolType().isShared()) {
return false;
}
}
return true;
}
@DB
protected Pair<VolumeVO, String> createVolumeFromSnapshot(long userId, long accountId, String userSpecifiedName, DataCenterVO dc, DiskOfferingVO diskOffering, SnapshotVO snapshot, String templatePath, Long originalVolumeSize, VMTemplateVO template) {
VolumeVO createdVolume = null;
Long volumeId = null;
String volumeFolder = null;
// Create the Volume object and save it so that we can return it to the user
Account account = _accountDao.findById(accountId);
VolumeVO volume = new VolumeVO(null, userSpecifiedName, -1, -1, -1, -1, new Long(-1), null, null, 0, Volume.VolumeType.DATADISK);
volume.setPoolId(null);
volume.setDataCenterId(dc.getId());
volume.setPodId(null);
volume.setAccountId(accountId);
volume.setDomainId(account.getDomainId().longValue());
volume.setMirrorState(MirrorState.NOT_MIRRORED);
if (diskOffering != null) {
volume.setDiskOfferingId(diskOffering.getId());
}
volume.setSize(originalVolumeSize);
volume.setStorageResourceType(Storage.StorageResourceType.STORAGE_POOL);
volume.setInstanceId(null);
volume.setUpdated(new Date());
volume.setStatus(AsyncInstanceCreateStatus.Creating);
volume = _volsDao.persist(volume);
volumeId = volume.getId();
AsyncJobExecutor asyncExecutor = BaseAsyncJobExecutor.getCurrentExecutor();
if(asyncExecutor != null) {
AsyncJobVO job = asyncExecutor.getJob();
if(s_logger.isInfoEnabled())
s_logger.info("CreateVolume created a new instance " + volumeId + ", update async job-" + job.getId() + " progress status");
_asyncMgr.updateAsyncJobAttachment(job.getId(), "volume", volumeId);
_asyncMgr.updateAsyncJobStatus(job.getId(), BaseCmd.PROGRESS_INSTANCE_CREATED, volumeId);
}
final HashSet<StoragePool> poolsToAvoid = new HashSet<StoragePool>();
StoragePoolVO pool = null;
boolean success = false;
Set<Long> podsToAvoid = new HashSet<Long>();
Pair<HostPodVO, Long> pod = null;
String volumeUUID = null;
String details = null;
DiskCharacteristics dskCh = createDiskCharacteristics(volume, template, dc, diskOffering);
// Determine what pod to store the volume in
while ((pod = _agentMgr.findPod(null, null, dc, account.getId(), podsToAvoid)) != null) {
// Determine what storage pool to store the volume in
while ((pool = findStoragePool(dskCh, dc, pod.first(), null, null, null, null, poolsToAvoid)) != null) {
volumeFolder = pool.getPath();
if (s_logger.isDebugEnabled()) {
s_logger.debug("Attempting to create volume from snapshotId: " + snapshot.getId() + " on storage pool " + pool.getName());
}
// Get the newly created VDI from the snapshot.
// This will return a null volumePath if it could not be created
Pair<String, String> volumeDetails = createVDIFromSnapshot(userId, snapshot, pool, templatePath);
volumeUUID = volumeDetails.first();
details = volumeDetails.second();
if (volumeUUID != null) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Volume with UUID " + volumeUUID + " was created on storage pool " + pool.getName());
}
success = true;
break; // break out of the "find storage pool" loop
}
s_logger.warn("Unable to create volume on pool " + pool.getName() + ", reason: " + details);
}
if (success) {
break; // break out of the "find pod" loop
} else {
podsToAvoid.add(pod.first().getId());
}
}
// Update the volume in the database
Transaction txn = Transaction.currentTxn();
txn.start();
createdVolume = _volsDao.findById(volumeId);
if (success) {
// Increment the number of volumes
_accountMgr.incrementResourceCount(accountId, ResourceType.volume);
createdVolume.setStatus(AsyncInstanceCreateStatus.Created);
createdVolume.setPodId(pod.first().getId());
createdVolume.setPoolId(pool.getId());
createdVolume.setPoolType(pool.getPoolType());
createdVolume.setFolder(volumeFolder);
createdVolume.setPath(volumeUUID);
createdVolume.setDomainId(account.getDomainId().longValue());
} else {
createdVolume.setStatus(AsyncInstanceCreateStatus.Corrupted);
createdVolume.setDestroyed(true);
}
_volsDao.update(volumeId, createdVolume);
txn.commit();
return new Pair<VolumeVO, String>(createdVolume, details);
}
@Override
@DB
public VolumeVO createVolumeFromSnapshot(long userId, long accountId, long snapshotId, String volumeName, long startEventId) {
EventVO event = new EventVO();
event.setUserId(userId);
event.setAccountId(accountId);
event.setType(EventTypes.EVENT_VOLUME_CREATE);
event.setState(EventState.Started);
event.setStartId(startEventId);
event.setDescription("Creating volume from snapshot with id: "+snapshotId);
_eventDao.persist(event);
// By default, assume failure.
VolumeVO createdVolume = null;
String details = null;
Long volumeId = null;
SnapshotVO snapshot = _snapshotDao.findById(snapshotId); // Precondition: snapshot is not null and not removed.
Long origVolumeId = snapshot.getVolumeId();
VolumeVO originalVolume = _volsDao.findById(origVolumeId); // NOTE: Original volume could be destroyed and removed.
String templatePath = null;
VMTemplateVO template = null;
if(originalVolume.getVolumeType().equals(Volume.VolumeType.ROOT)){
if(originalVolume.getTemplateId() == null){
details = "Null Template Id for Root Volume Id: " + origVolumeId + ". Cannot create volume from snapshot of root disk.";
s_logger.error(details);
}
else {
Long templateId = originalVolume.getTemplateId();
template = _templateDao.findById(templateId);
if(template == null) {
details = "Unable find template id: " + templateId + " to create volume from root disk";
s_logger.error(details);
}
else if (template.getFormat() != ImageFormat.ISO) {
// For ISOs there is no base template VHD file. The root disk itself is the base template.
// Creating a volume from an ISO Root Disk is the same as creating a volume for a Data Disk.
// Absolute crappy way of getting the template path on secondary storage.
// Why is the secondary storage a host? It's just an NFS mount point. Why do we need to look into the templateHostVO?
HostVO secondaryStorageHost = getSecondaryStorageHost(originalVolume.getDataCenterId());
VMTemplateHostVO templateHostVO = _templateHostDao.findByHostTemplate(secondaryStorageHost.getId(), templateId);
if (templateHostVO == null ||
templateHostVO.getDownloadState() != VMTemplateStorageResourceAssoc.Status.DOWNLOADED ||
(templatePath = templateHostVO.getInstallPath()) == null)
{
details = "Template id: " + templateId + " is not present on secondaryStorageHost Id: " + secondaryStorageHost.getId() + ". Can't create volume from ROOT DISK";
}
}
}
}
if (details == null) {
// everything went well till now
DataCenterVO dc = _dcDao.findById(originalVolume.getDataCenterId());
DiskOfferingVO diskOffering = null;
if (originalVolume.getVolumeType() == VolumeType.DATADISK || originalVolume.getVolumeType() == VolumeType.ROOT) {
Long diskOfferingId = originalVolume.getDiskOfferingId();
if (diskOfferingId != null) {
diskOffering = _diskOfferingDao.findById(diskOfferingId);
}
}
// else if (originalVolume.getVolumeType() == VolumeType.ROOT) {
// // Create a temporary disk offering with the same size as the ROOT DISK
// Long rootDiskSize = originalVolume.getSize();
// Long rootDiskSizeInMB = rootDiskSize/(1024*1024);
// Long sizeInGB = rootDiskSizeInMB/1024;
// String name = "Root Disk Offering";
// String displayText = "Temporary Disk Offering for Snapshot from Root Disk: " + originalVolume.getId() + "[" + sizeInGB + "GB Disk]";
// diskOffering = new DiskOfferingVO(originalVolume.getDomainId(), name, displayText, rootDiskSizeInMB, false, null);
// }
else {
// The code never reaches here.
s_logger.error("Original volume must have been a ROOT DISK or a DATA DISK");
return null;
}
Pair<VolumeVO, String> volumeDetails = createVolumeFromSnapshot(userId, accountId, volumeName, dc, diskOffering, snapshot, templatePath, originalVolume.getSize(), template);
createdVolume = volumeDetails.first();
if (createdVolume != null) {
volumeId = createdVolume.getId();
}
details = volumeDetails.second();
}
Transaction txn = Transaction.currentTxn();
txn.start();
// Create an event
long templateId = -1;
long diskOfferingId = -1;
if(originalVolume.getTemplateId() != null){
templateId = originalVolume.getTemplateId();
}
diskOfferingId = originalVolume.getDiskOfferingId();
long sizeMB = createdVolume.getSize()/(1024*1024);
String poolName = _storagePoolDao.findById(createdVolume.getPoolId()).getName();
String eventParams = "id=" + volumeId +"\ndoId="+diskOfferingId+"\ntId="+templateId+"\ndcId="+originalVolume.getDataCenterId()+"\nsize="+sizeMB;
event = new EventVO();
event.setAccountId(accountId);
event.setUserId(userId);
event.setType(EventTypes.EVENT_VOLUME_CREATE);
event.setParameters(eventParams);
event.setStartId(startEventId);
event.setState(EventState.Completed);
if (createdVolume.getPath() != null) {
event.setDescription("Created volume: "+ createdVolume.getName() + " with size: " + sizeMB + " MB in pool: " + poolName + " from snapshot id: " + snapshotId);
event.setLevel(EventVO.LEVEL_INFO);
}
else {
details = "CreateVolume From Snapshot for snapshotId: " + snapshotId + " failed at the backend, reason " + details;
event.setDescription(details);
event.setLevel(EventVO.LEVEL_ERROR);
}
_eventDao.persist(event);
txn.commit();
return createdVolume;
}
protected Pair<String, String> createVDIFromSnapshot(long userId, SnapshotVO snapshot, StoragePoolVO pool, String templatePath) {
String vdiUUID = null;
Long volumeId = snapshot.getVolumeId();
VolumeVO volume = _volsDao.findById(volumeId);
String primaryStoragePoolNameLabel = pool.getUuid(); // pool's uuid is actually the namelabel.
String secondaryStoragePoolUrl = getSecondaryStorageURL(volume.getDataCenterId());
Long dcId = volume.getDataCenterId();
long accountId = volume.getAccountId();
String backedUpSnapshotUuid = snapshot.getBackupSnapshotId();
CreateVolumeFromSnapshotCommand createVolumeFromSnapshotCommand =
new CreateVolumeFromSnapshotCommand(primaryStoragePoolNameLabel,
secondaryStoragePoolUrl,
dcId,
accountId,
volumeId,
backedUpSnapshotUuid,
snapshot.getName(),
templatePath);
String basicErrMsg = "Failed to create volume from " + snapshot.getName() + " for volume: " + volume.getId();
CreateVolumeFromSnapshotAnswer answer = (CreateVolumeFromSnapshotAnswer) sendToHostsOnStoragePool(pool.getId(),
createVolumeFromSnapshotCommand,
basicErrMsg,
_totalRetries,
_pauseInterval,
_shouldBeSnapshotCapable, null);
if (answer != null && answer.getResult()) {
vdiUUID = answer.getVdi();
}
else if (answer != null) {
s_logger.error(basicErrMsg);
}
return new Pair<String, String>(vdiUUID, basicErrMsg);
}
@DB
protected VolumeVO createVolume(VolumeVO volume, VMInstanceVO vm, VMTemplateVO template, DataCenterVO dc, HostPodVO pod, Long clusterId,
ServiceOfferingVO offering, DiskOfferingVO diskOffering, List<StoragePoolVO> avoids, long size) {
StoragePoolVO pool = null;
final HashSet<StoragePool> avoidPools = new HashSet<StoragePool>(avoids);
DiskCharacteristics dskCh = null;
if (volume.getVolumeType() == VolumeType.ROOT && Storage.ImageFormat.ISO != template.getFormat()) {
dskCh = createDiskCharacteristics(volume, template, dc, offering);
} else {
dskCh = createDiskCharacteristics(volume, template, dc, diskOffering);
}
Transaction txn = Transaction.currentTxn();
VolumeType volType = volume.getVolumeType();
VolumeTO created = null;
int retry = _retry;
while (--retry >= 0) {
created = null;
txn.start();
long podId = pod.getId();
pod = _podDao.lock(podId, true);
if (pod == null) {
txn.rollback();
volume.setStatus(AsyncInstanceCreateStatus.Failed);
volume.setDestroyed(true);
_volsDao.persist(volume);
throw new CloudRuntimeException("Unable to acquire lock on the pod " + podId);
}
pool = findStoragePool(dskCh, dc, pod, clusterId, offering, vm, template, avoidPools);
if (pool == null) {
txn.rollback();
break;
}
avoidPools.add(pool);
if (s_logger.isDebugEnabled()) {
s_logger.debug("Trying to create " + volume + " on " + pool);
}
volume.setPoolId(pool.getId());
_volsDao.persist(volume);
txn.commit();
CreateCommand cmd = null;
VMTemplateStoragePoolVO tmpltStoredOn = null;
if (volume.getVolumeType() == VolumeType.ROOT && Storage.ImageFormat.ISO != template.getFormat()) {
tmpltStoredOn = _tmpltMgr.prepareTemplateForCreate(template, pool);
if (tmpltStoredOn == null) {
continue;
}
cmd = new CreateCommand(volume, vm, dskCh, tmpltStoredOn.getLocalDownloadPath(), pool);
} else {
cmd = new CreateCommand(volume, vm, dskCh, pool, size);
}
Answer answer = sendToPool(pool, cmd);
if (answer != null && answer.getResult()) {
created = ((CreateAnswer)answer).getVolume();
break;
}
volume.setPoolId(null);
_volsDao.persist(volume);
s_logger.debug("Retrying the create because it failed on pool " + pool);
}
if (created == null) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Unable to create a volume for " + volume);
}
volume.setStatus(AsyncInstanceCreateStatus.Failed);
volume.setDestroyed(true);
_volsDao.persist(volume);
return null;
}
volume.setStatus(AsyncInstanceCreateStatus.Created);
volume.setFolder(pool.getPath());
volume.setPath(created.getPath());
volume.setSize(created.getSize());
volume.setPoolType(pool.getPoolType());
volume.setPodId(pod.getId());
_volsDao.persist(volume);
return volume;
}
@Override
public List<VolumeVO> create(Account account, VMInstanceVO vm, VMTemplateVO template, DataCenterVO dc, HostPodVO pod, ServiceOfferingVO offering, DiskOfferingVO diskOffering, long size) throws StorageUnavailableException, ExecutionException {
List<StoragePoolVO> avoids = new ArrayList<StoragePoolVO>();
return create(account, vm, template, dc, pod, offering, diskOffering, avoids, size);
}
@DB
protected List<VolumeVO> create(Account account, VMInstanceVO vm, VMTemplateVO template, DataCenterVO dc, HostPodVO pod,
ServiceOfferingVO offering, DiskOfferingVO diskOffering, List<StoragePoolVO> avoids, long size) {
ArrayList<VolumeVO> vols = new ArrayList<VolumeVO>(2);
VolumeVO dataVol = null;
VolumeVO rootVol = null;
Transaction txn = Transaction.currentTxn();
txn.start();
if (Storage.ImageFormat.ISO == template.getFormat()) {
rootVol = new VolumeVO(VolumeType.ROOT, vm.getId(), vm.getInstanceName() + "-ROOT", dc.getId(), pod.getId(), account.getId(), account.getDomainId(),(size>0)? size : diskOffering.getDiskSizeInBytes());
rootVol.setDiskOfferingId(diskOffering.getId());
rootVol.setDeviceId(0l);
rootVol = _volsDao.persist(rootVol);
} else {
rootVol = new VolumeVO(VolumeType.ROOT, vm.getId(), template.getId(), vm.getInstanceName() + "-ROOT", dc.getId(), pod.getId(), account.getId(), account.getDomainId(), offering.isRecreatable());
rootVol.setDiskOfferingId(offering.getId());
rootVol.setTemplateId(template.getId());
rootVol.setDeviceId(0l);
rootVol = _volsDao.persist(rootVol);
if (diskOffering != null && diskOffering.getDiskSizeInBytes() > 0) {
dataVol = new VolumeVO(VolumeType.DATADISK, vm.getId(), vm.getInstanceName() + "-DATA", dc.getId(), pod.getId(), account.getId(), account.getDomainId(), (size>0)? size : diskOffering.getDiskSizeInBytes());
dataVol.setDiskOfferingId(diskOffering.getId());
dataVol.setDeviceId(1l);
dataVol = _volsDao.persist(dataVol);
}
}
txn.commit();
VolumeVO dataCreated = null;
VolumeVO rootCreated = null;
try {
rootCreated = createVolume(rootVol, vm, template, dc, pod, null, offering, diskOffering, avoids,size);
if (rootCreated == null) {
throw new CloudRuntimeException("Unable to create " + rootVol);
}
vols.add(rootCreated);
if (dataVol != null) {
StoragePoolVO pool = _storagePoolDao.findById(rootCreated.getPoolId());
dataCreated = createVolume(dataVol, vm, template, dc, pod, pool.getClusterId(), offering, diskOffering, avoids,size);
if (dataCreated == null) {
throw new CloudRuntimeException("Unable to create " + dataVol);
}
vols.add(dataCreated);
}
return vols;
} catch (Exception e) {
s_logger.error("Unexpected exception ", e);
if (rootCreated != null) {
destroyVolume(rootCreated);
}
throw new CloudRuntimeException("Unable to create volumes for " + vm, e);
}
}
@Override
public long createUserVM(Account account, VMInstanceVO vm, VMTemplateVO template, DataCenterVO dc, HostPodVO pod, ServiceOfferingVO offering, DiskOfferingVO diskOffering,
List<StoragePoolVO> avoids, long size) {
List<VolumeVO> volumes = create(account, vm, template, dc, pod, offering, diskOffering, avoids, size);
for (VolumeVO v : volumes) {
long volumeId = v.getId();
// Create an event
long sizeMB = v.getSize() / (1024 * 1024);
String diskOfferingIdentifier = (diskOffering != null) ? String.valueOf(diskOffering.getId()) : "-1";
String eventParams = "id=" + volumeId + "\ndoId=" + diskOfferingIdentifier + "\ntId=" + template.getId() + "\ndcId=" + dc.getId() + "\nsize=" + sizeMB;
EventVO event = new EventVO();
event.setAccountId(account.getId());
event.setUserId(1L);
event.setType(EventTypes.EVENT_VOLUME_CREATE);
event.setParameters(eventParams);
event.setDescription("Created volume: " + v.getName() + " with size: " + sizeMB + " MB");
_eventDao.persist(event);
}
return volumes.get(0).getPoolId();
}
public Long chooseHostForStoragePool(StoragePoolVO poolVO, List<Long> avoidHosts, boolean sendToVmResidesOn, Long vmId) {
if (sendToVmResidesOn) {
if (vmId != null) {
VMInstanceVO vmInstance = _vmInstanceDao.findById(vmId);
if (vmInstance != null) {
return vmInstance.getHostId();
}
}
return null;
}
List<StoragePoolHostVO> poolHosts = _poolHostDao.listByHostStatus(poolVO.getId(), Status.Up);
Collections.shuffle(poolHosts);
if (poolHosts != null && poolHosts.size() > 0) {
for (StoragePoolHostVO sphvo : poolHosts) {
if (!avoidHosts.contains(sphvo.getHostId())) {
return sphvo.getHostId();
}
}
}
return null;
}
@Override
public String chooseStorageIp(VMInstanceVO vm, Host host, Host storage) {
Enumeration<StoragePoolAllocator> en = _storagePoolAllocators.enumeration();
while (en.hasMoreElements()) {
StoragePoolAllocator allocator = en.nextElement();
String ip = allocator.chooseStorageIp(vm, host, storage);
if (ip != null) {
return ip;
}
}
assert false : "Hmm....fell thru the loop";
return null;
}
@Override
public boolean unshare(VMInstanceVO vm, List<VolumeVO> vols, HostVO host) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Asking for volumes of " + vm.toString() + " to be unshared to " + (host != null ? host.toString() : "all"));
}
return true;
}
public void destroy(VMInstanceVO vm, List<VolumeVO> vols) {
if (s_logger.isDebugEnabled() && vm != null) {
s_logger.debug("Destroying volumes of " + vm.toString());
}
for (VolumeVO vol : vols) {
_volsDao.detachVolume(vol.getId());
_volsDao.destroyVolume(vol.getId());
// First delete the entries in the snapshot_policy and
// snapshot_schedule table for the volume.
// They should not get executed after the volume is destroyed.
_snapshotMgr.deletePoliciesForVolume(vol.getId());
String volumePath = vol.getPath();
Long poolId = vol.getPoolId();
if (poolId != null && volumePath != null && !volumePath.trim().isEmpty()) {
Answer answer = null;
StoragePoolVO pool = _storagePoolDao.findById(poolId);
final DestroyCommand cmd = new DestroyCommand(pool, vol);
boolean removed = false;
List<StoragePoolHostVO> poolhosts = _storagePoolHostDao.listByPoolId(poolId);
for (StoragePoolHostVO poolhost : poolhosts) {
answer = _agentMgr.easySend(poolhost.getHostId(), cmd);
if (answer != null && answer.getResult()) {
removed = true;
break;
}
}
if (removed) {
_volsDao.remove(vol.getId());
} else {
_alertMgr.sendAlert(AlertManager.ALERT_TYPE_STORAGE_MISC, vol.getDataCenterId(), vol.getPodId(),
"Storage cleanup required for storage pool: " + pool.getName(), "Volume folder: " + vol.getFolder() + ", Volume Path: " + vol.getPath() + ", Volume id: " +vol.getId()+ ", Volume Name: " +vol.getName()+ ", Storage PoolId: " +vol.getPoolId());
s_logger.warn("destroy volume " + vol.getFolder() + " : " + vol.getPath() + " failed for Volume id : " +vol.getId()+ " Volume Name: " +vol.getName()+ " Storage PoolId : " +vol.getPoolId());
}
} else {
_volsDao.remove(vol.getId());
}
}
}
@Override
public boolean configure(String name, Map<String, Object> params) throws ConfigurationException {
_name = name;
ComponentLocator locator = ComponentLocator.getCurrentLocator();
ConfigurationDao configDao = locator.getDao(ConfigurationDao.class);
if (configDao == null) {
s_logger.error("Unable to get the configuration dao.");
return false;
}
_storagePoolAllocators = locator.getAdapters(StoragePoolAllocator.class);
if (!_storagePoolAllocators.isSet()) {
throw new ConfigurationException("Unable to get any storage pool allocators.");
}
_discoverers = locator.getAdapters(StoragePoolDiscoverer.class);
String overProvisioningFactorStr = (String) params.get("storage.overprovisioning.factor");
if (overProvisioningFactorStr != null) {
_overProvisioningFactor = Integer.parseInt(overProvisioningFactorStr);
}
Map<String, String> configs = configDao.getConfiguration("management-server", params);
_retry = NumbersUtil.parseInt(configs.get(Config.StartRetry.key()), 2);
_pingInterval = NumbersUtil.parseInt(configs.get("ping.interval"), 60);
_hostRetry = NumbersUtil.parseInt(configs.get("host.retry"), 2);
_storagePoolAcquisitionWaitSeconds = NumbersUtil.parseInt(configs.get("pool.acquisition.wait.seconds"), 1800);
s_logger.info("pool.acquisition.wait.seconds is configured as " + _storagePoolAcquisitionWaitSeconds + " seconds");
_totalRetries = NumbersUtil.parseInt(configDao.getValue("total.retries"), 4);
_pauseInterval = 2*NumbersUtil.parseInt(configDao.getValue("ping.interval"), 60);
String hypervisoType = configDao.getValue("hypervisor.type");
if (hypervisoType.equalsIgnoreCase("KVM")) {
_hypervisorType = Hypervisor.Type.KVM;
}
_agentMgr.registerForHostEvents(new StoragePoolMonitor(this, _hostDao, _storagePoolDao), true, false, true);
String storageCleanupEnabled = configs.get("storage.cleanup.enabled");
_storageCleanupEnabled = (storageCleanupEnabled == null) ? true : Boolean.parseBoolean(storageCleanupEnabled);
String time = configs.get("storage.cleanup.interval");
_storageCleanupInterval = NumbersUtil.parseInt(time, 86400);
String workers = configs.get("expunge.workers");
int wrks = NumbersUtil.parseInt(workers, 10);
_executor = Executors.newScheduledThreadPool(wrks, new NamedThreadFactory("StorageManager-Scavenger"));
boolean localStorage = Boolean.parseBoolean(configs.get(Config.UseLocalStorage.key()));
if (localStorage) {
_agentMgr.registerForHostEvents(ComponentLocator.inject(LocalStoragePoolListener.class), true, false, false);
}
PoolsUsedByVmSearch = _storagePoolDao.createSearchBuilder();
SearchBuilder<VolumeVO> volSearch = _volsDao.createSearchBuilder();
PoolsUsedByVmSearch.join("volumes", volSearch, volSearch.entity().getPoolId(), PoolsUsedByVmSearch.entity().getId());
volSearch.and("vm", volSearch.entity().getInstanceId(), SearchCriteria.Op.EQ);
volSearch.done();
PoolsUsedByVmSearch.done();
HostTemplateStatesSearch = _vmTemplateHostDao.createSearchBuilder();
HostTemplateStatesSearch.and("id", HostTemplateStatesSearch.entity().getTemplateId(), SearchCriteria.Op.EQ);
HostTemplateStatesSearch.and("state", HostTemplateStatesSearch.entity().getDownloadState(), SearchCriteria.Op.EQ);
SearchBuilder<HostVO> HostSearch = _hostDao.createSearchBuilder();
HostSearch.and("dcId", HostSearch.entity().getDataCenterId(), SearchCriteria.Op.EQ);
HostTemplateStatesSearch.join("host", HostSearch, HostSearch.entity().getId(), HostTemplateStatesSearch.entity().getHostId());
HostSearch.done();
HostTemplateStatesSearch.done();
return true;
}
public String getVolumeFolder(String parentDir, long accountId, String diskFolderName) {
StringBuilder diskFolderBuilder = new StringBuilder();
Formatter diskFolderFormatter = new Formatter(diskFolderBuilder);
diskFolderFormatter.format("%s/u%06d/%s", parentDir, accountId, diskFolderName);
return diskFolderBuilder.toString();
}
public String getRandomVolumeName() {
return UUID.randomUUID().toString();
}
public boolean volumeOnSharedStoragePool(VolumeVO volume) {
Long poolId = volume.getPoolId();
if (poolId == null) {
return false;
} else {
StoragePoolVO pool = _storagePoolDao.findById(poolId);
if (pool == null) {
return false;
} else {
return pool.isShared();
}
}
}
public boolean volumeInactive(VolumeVO volume) {
Long vmId = volume.getInstanceId();
if (vmId != null) {
UserVm vm = _userVmDao.findById(vmId);
if (vm == null) {
return false;
}
if (!vm.getState().equals(State.Stopped)) {
return false;
}
}
return true;
}
public String getVmNameOnVolume(VolumeVO volume) {
Long vmId = volume.getInstanceId();
if (vmId != null) {
VMInstanceVO vm = _vmInstanceDao.findById(vmId);
if (vm == null) {
return null;
}
return vm.getInstanceName();
}
return null;
}
public String getAbsoluteIsoPath(long templateId, long dataCenterId) {
String isoPath = null;
List<HostVO> storageHosts = _hostDao.listBy(Host.Type.SecondaryStorage, dataCenterId);
if (storageHosts != null) {
for (HostVO storageHost : storageHosts) {
VMTemplateHostVO templateHostVO = _vmTemplateHostDao.findByHostTemplate(storageHost.getId(), templateId);
if (templateHostVO != null) {
isoPath = storageHost.getStorageUrl() + "/" + templateHostVO.getInstallPath();
break;
}
}
}
return isoPath;
}
public String getSecondaryStorageURL(long zoneId) {
// Determine the secondary storage URL
HostVO secondaryStorageHost = _hostDao.findSecondaryStorageHost(zoneId);
if (secondaryStorageHost == null) {
return null;
}
return secondaryStorageHost.getStorageUrl();
}
public HostVO getSecondaryStorageHost(long zoneId) {
return _hostDao.findSecondaryStorageHost(zoneId);
}
@Override
public String getStoragePoolTags(long poolId) {
return _configMgr.listToCsvTags(_storagePoolDao.searchForStoragePoolDetails(poolId, "true"));
}
@Override
public String getName() {
return _name;
}
@Override
public boolean start() {
if (_storageCleanupEnabled) {
_executor.scheduleWithFixedDelay(new StorageGarbageCollector(), _storageCleanupInterval, _storageCleanupInterval, TimeUnit.SECONDS);
} else {
s_logger.debug("Storage cleanup is not enabled, so the storage cleanup thread is not being scheduled.");
}
return true;
}
@Override
public boolean stop() {
if (_storageCleanupEnabled) {
_executor.shutdown();
}
return true;
}
protected StorageManagerImpl() {
}
@Override
public StoragePoolVO createPool(long zoneId, Long podId, Long clusterId, String poolName, URI uri, String tags, Map<String, String> details) throws ResourceInUseException, IllegalArgumentException, UnknownHostException, ResourceAllocationException {
if (tags != null) {
if (details == null) {
details = new HashMap<String, String>();
}
String[] tokens = tags.split(",");
for (String tag : tokens) {
tag = tag.trim();
if (tag.length() == 0) {
continue;
}
details.put(tag, "true");
}
}
Hypervisor.Type hypervisorType = null;
List<HostVO> hosts = null;
if (podId != null) {
hosts = _hostDao.listByHostPod(podId);
} else {
hosts = _hostDao.listByDataCenter(zoneId);
}
for (HostVO h : hosts) {
if (h.getType() == Type.Routing) {
hypervisorType = h.getHypervisorType();
break;
}
}
if (hypervisorType == null) {
if (_hypervisorType == Hypervisor.Type.KVM) {
hypervisorType = Hypervisor.Type.KVM;
} else {
s_logger.debug("Couldn't find a host to serve in the server pool");
return null;
}
}
String scheme = uri.getScheme();
String storageHost = uri.getHost();
String hostPath = uri.getPath();
int port = uri.getPort();
StoragePoolVO pool = null;
s_logger.debug("createPool Params @ scheme - " +scheme+ " storageHost - " +storageHost+ " hostPath - " +hostPath+ " port - " +port);
if (scheme.equalsIgnoreCase("nfs")) {
if (port == -1) {
port = 2049;
}
pool = new StoragePoolVO(StoragePoolType.NetworkFilesystem, storageHost, port, hostPath);
if (hypervisorType == Hypervisor.Type.XenServer && clusterId == null) {
throw new IllegalArgumentException("NFS need to have clusters specified for XenServers");
}
} else if (scheme.equalsIgnoreCase("file")) {
if (port == -1) {
port = 0;
}
pool = new StoragePoolVO(StoragePoolType.Filesystem, "localhost", 0, hostPath);
} else if (scheme.equalsIgnoreCase("iscsi")) {
String[] tokens = hostPath.split("/");
int lun = NumbersUtil.parseInt(tokens[tokens.length - 1], -1);
if (port == -1) {
port = 3260;
}
if (lun != -1) {
if (hypervisorType == Hypervisor.Type.XenServer && clusterId == null) {
throw new IllegalArgumentException("IscsiLUN need to have clusters specified");
}
hostPath.replaceFirst("/", "");
pool = new StoragePoolVO(StoragePoolType.IscsiLUN, storageHost, port, hostPath);
} else {
Enumeration<StoragePoolDiscoverer> en = _discoverers.enumeration();
while (en.hasMoreElements()) {
Map<StoragePoolVO, Map<String, String>> pools;
try {
pools = en.nextElement().find(zoneId, podId, uri, details);
} catch (DiscoveryException e) {
throw new IllegalArgumentException("Not enough information for discovery " + uri, e);
}
if (pools != null) {
Map.Entry<StoragePoolVO, Map<String, String>> entry = pools.entrySet().iterator().next();
pool = entry.getKey();
details = entry.getValue();
break;
}
}
}
} else if (scheme.equalsIgnoreCase("iso")) {
if (port == -1) {
port = 2049;
}
pool = new StoragePoolVO(StoragePoolType.ISO, storageHost, port, hostPath);
} else {
s_logger.warn("Unable to figure out the scheme for URI: " + uri);
throw new IllegalArgumentException("Unable to figure out the scheme for URI: " + uri);
}
if (pool == null) {
s_logger.warn("Unable to figure out the scheme for URI: " + uri);
throw new IllegalArgumentException("Unable to figure out the scheme for URI: " + uri);
}
List<StoragePoolVO> pools = _storagePoolDao.listPoolByHostPath(storageHost, hostPath);
if (!pools.isEmpty()) {
Long oldPodId = pools.get(0).getPodId();
throw new ResourceInUseException("Storage pool " + uri + " already in use by another pod (id=" + oldPodId + ")", "StoragePool", uri.toASCIIString());
}
// iterate through all the hosts and ask them to mount the filesystem.
// FIXME Not a very scalable implementation. Need an async listener, or
// perhaps do this on demand, or perhaps mount on a couple of hosts per
// pod
List<HostVO> allHosts = _hostDao.listBy(Host.Type.Routing, clusterId, podId, zoneId);
if (allHosts.isEmpty() && _hypervisorType != Hypervisor.Type.KVM) {
throw new ResourceAllocationException("No host exists to associate a storage pool with");
}
long poolId = _storagePoolDao.getNextInSequence(Long.class, "id");
String uuid = UUID.nameUUIDFromBytes(new String(storageHost + hostPath).getBytes()).toString();
s_logger.debug("In createPool Setting poolId - " +poolId+ " uuid - " +uuid+ " zoneId - " +zoneId+ " podId - " +podId+ " poolName - " +poolName);
pool.setId(poolId);
pool.setUuid(uuid);
pool.setDataCenterId(zoneId);
pool.setPodId(podId);
pool.setName(poolName);
pool.setClusterId(clusterId);
pool.setStatus(Status.Up);
pool = _storagePoolDao.persist(pool, details);
if (_hypervisorType == Hypervisor.Type.KVM && allHosts.isEmpty()) {
return pool;
}
s_logger.debug("In createPool Adding the pool to each of the hosts");
List<HostVO> poolHosts = new ArrayList<HostVO>();
for (HostVO h : allHosts) {
boolean success = addPoolToHost(h.getId(), pool);
if (success) {
poolHosts.add(h);
}
}
if (poolHosts.isEmpty()) {
_storagePoolDao.delete(pool.getId());
pool = null;
} else {
createCapacityEntry(pool);
}
return pool;
}
@Override
public StoragePoolVO updateStoragePool(long poolId, String tags) throws IllegalArgumentException {
StoragePoolVO pool = _storagePoolDao.findById(poolId);
if (pool == null) {
throw new IllegalArgumentException("Unable to find storage pool with ID: " + poolId);
}
if (tags != null) {
Map<String, String> details = _storagePoolDao.getDetails(poolId);
String[] tagsList = tags.split(",");
for (String tag : tagsList) {
tag = tag.trim();
if (tag.length() > 0 && !details.containsKey(tag)) {
details.put(tag, "true");
}
}
_storagePoolDao.updateDetails(poolId, details);
}
return pool;
}
@DB
public boolean deletePool(long id) {
boolean deleteFlag = false;
// get the pool to delete
StoragePoolVO sPool = _storagePoolDao.findById(id);
if (sPool == null)
return false;
// for the given pool id, find all records in the storage_pool_host_ref
List<StoragePoolHostVO> hostPoolRecords = _storagePoolHostDao.listByPoolId(id);
// if not records exist, delete the given pool (base case)
if (hostPoolRecords.size() == 0) {
_storagePoolDao.remove(id);
return true;
} else {
// 1. Check if the pool has associated volumes in the volumes table
// 2. If it does, then you cannot delete the pool
Pair<Long, Long> volumeRecords = _volsDao.getCountAndTotalByPool(id);
if (volumeRecords.first() > 0) {
return false; // cannot delete as there are associated vols
}
// 3. Else part, remove the SR associated with the Xenserver
else {
// First get the host_id from storage_pool_host_ref for given
// pool id
StoragePoolVO lock = _storagePoolDao.acquire(sPool.getId());
try {
if (lock == null) {
s_logger.debug("Failed to acquire lock when deleting StoragePool with ID: " + sPool.getId());
return false;
}
for (StoragePoolHostVO host : hostPoolRecords) {
DeleteStoragePoolCommand cmd = new DeleteStoragePoolCommand(sPool);
final Answer answer = _agentMgr.easySend(host.getHostId(), cmd);
if (answer != null) {
if (answer.getResult() == true) {
deleteFlag = true;
break;
}
}
}
} finally {
if (lock != null) {
_storagePoolDao.release(lock.getId());
}
}
if (deleteFlag) {
// now delete the storage_pool_host_ref and storage_pool
// records
for (StoragePoolHostVO host : hostPoolRecords) {
_storagePoolHostDao.deleteStoragePoolHostDetails(host.getHostId(),host.getPoolId());
}
_storagePoolDao.remove(id);
return true;
}
}
}
return false;
}
@Override
public boolean addPoolToHost(long hostId, StoragePoolVO pool) {
s_logger.debug("Adding pool " + pool.getName() + " to host " + hostId);
if (pool.getPoolType() != StoragePoolType.NetworkFilesystem && pool.getPoolType() != StoragePoolType.Filesystem && pool.getPoolType() != StoragePoolType.IscsiLUN && pool.getPoolType() != StoragePoolType.Iscsi) {
return true;
}
ModifyStoragePoolCommand cmd = new ModifyStoragePoolCommand(true, pool);
final Answer answer = _agentMgr.easySend(hostId, cmd);
if (answer != null) {
if (answer.getResult() == false) {
String msg = "Add host failed due to ModifyStoragePoolCommand failed" + answer.getDetails();
_alertMgr.sendAlert(AlertManager.ALERT_TYPE_HOST, pool.getDataCenterId(), pool.getPodId(), msg, msg);
s_logger.warn(msg);
return false;
}
if (answer instanceof ModifyStoragePoolAnswer) {
ModifyStoragePoolAnswer mspAnswer = (ModifyStoragePoolAnswer) answer;
StoragePoolHostVO poolHost = _poolHostDao.findByPoolHost(pool.getId(), hostId);
if (poolHost == null) {
poolHost = new StoragePoolHostVO(pool.getId(), hostId, mspAnswer.getPoolInfo().getLocalPath().replaceAll("//", "/"));
_poolHostDao.persist(poolHost);
} else {
poolHost.setLocalPath(mspAnswer.getPoolInfo().getLocalPath().replaceAll("//", "/"));
}
pool.setAvailableBytes(mspAnswer.getPoolInfo().getAvailableBytes());
pool.setCapacityBytes(mspAnswer.getPoolInfo().getCapacityBytes());
_storagePoolDao.update(pool.getId(), pool);
return true;
}
} else {
return false;
}
return false;
}
public VolumeVO moveVolume(VolumeVO volume, long destPoolDcId, Long destPoolPodId, Long destPoolClusterId) throws InternalErrorException {
// Find a destination storage pool with the specified criteria
DiskOfferingVO diskOffering = _diskOfferingDao.findById(volume.getDiskOfferingId());
DiskCharacteristics dskCh = new DiskCharacteristics(volume.getVolumeType(), volume.getName(), diskOffering.getId(), diskOffering.getDiskSizeInBytes(), diskOffering.getTagsArray(), diskOffering.getUseLocalStorage(), diskOffering.isRecreatable(), null);
DataCenterVO destPoolDataCenter = _dcDao.findById(destPoolDcId);
HostPodVO destPoolPod = _podDao.findById(destPoolPodId);
StoragePoolVO destPool = findStoragePool(dskCh, destPoolDataCenter, destPoolPod, destPoolClusterId, null, null, null, new HashSet<StoragePool>());
if (destPool == null) {
throw new InternalErrorException("Failed to find a storage pool with enough capacity to move the volume to.");
}
StoragePoolVO srcPool = _storagePoolDao.findById(volume.getPoolId());
String secondaryStorageURL = getSecondaryStorageURL(volume.getDataCenterId());
String secondaryStorageVolumePath = null;
// Find hosts where the source and destination storage pools are visible
Long sourceHostId = findHostIdForStoragePool(srcPool);
Long destHostId = findHostIdForStoragePool(destPool);
if (sourceHostId == null) {
throw new InternalErrorException("Failed to find a host where the source storage pool is visible.");
} else if (destHostId == null) {
throw new InternalErrorException("Failed to find a host where the dest storage pool is visible.");
}
// Copy the volume from the source storage pool to secondary storage
CopyVolumeCommand cvCmd = new CopyVolumeCommand(volume.getId(), volume.getPath(), srcPool, secondaryStorageURL, true);
CopyVolumeAnswer cvAnswer = (CopyVolumeAnswer) _agentMgr.easySend(sourceHostId, cvCmd);
if (cvAnswer == null || !cvAnswer.getResult()) {
throw new InternalErrorException("Failed to copy the volume from the source primary storage pool to secondary storage.");
}
secondaryStorageVolumePath = cvAnswer.getVolumePath();
// Copy the volume from secondary storage to the destination storage
// pool
cvCmd = new CopyVolumeCommand(volume.getId(), secondaryStorageVolumePath, destPool, secondaryStorageURL, false);
cvAnswer = (CopyVolumeAnswer) _agentMgr.easySend(destHostId, cvCmd);
if (cvAnswer == null || !cvAnswer.getResult()) {
throw new InternalErrorException("Failed to copy the volume from secondary storage to the destination primary storage pool.");
}
String destPrimaryStorageVolumePath = cvAnswer.getVolumePath();
String destPrimaryStorageVolumeFolder = cvAnswer.getVolumeFolder();
// Delete the volume on the source storage pool
final DestroyCommand cmd = new DestroyCommand(srcPool, volume);
Answer destroyAnswer = _agentMgr.easySend(sourceHostId, cmd);
if (destroyAnswer == null || !destroyAnswer.getResult()) {
throw new InternalErrorException("Failed to delete the volume from the source primary storage pool.");
}
volume.setPath(destPrimaryStorageVolumePath);
volume.setFolder(destPrimaryStorageVolumeFolder);
volume.setPodId(destPool.getPodId());
volume.setPoolId(destPool.getId());
_volsDao.update(volume.getId(), volume);
return _volsDao.findById(volume.getId());
}
@Override
@DB
public VolumeVO createVolume(long accountId, long userId, String userSpecifiedName, DataCenterVO dc, DiskOfferingVO diskOffering, long startEventId, long size)
{
String volumeName = "";
VolumeVO createdVolume = null;
try
{
// Determine the volume's name
volumeName = getRandomVolumeName();
// Create the Volume object and save it so that we can return it to the user
Account account = _accountDao.findById(accountId);
VolumeVO volume = new VolumeVO(null, userSpecifiedName, -1, -1, -1, -1, new Long(-1), null, null, 0, Volume.VolumeType.DATADISK);
volume.setPoolId(null);
volume.setDataCenterId(dc.getId());
volume.setPodId(null);
volume.setAccountId(accountId);
volume.setDomainId(account.getDomainId().longValue());
volume.setMirrorState(MirrorState.NOT_MIRRORED);
volume.setDiskOfferingId(diskOffering.getId());
volume.setStorageResourceType(Storage.StorageResourceType.STORAGE_POOL);
volume.setInstanceId(null);
volume.setUpdated(new Date());
volume.setStatus(AsyncInstanceCreateStatus.Creating);
volume.setDomainId(account.getDomainId().longValue());
volume = _volsDao.persist(volume);
AsyncJobExecutor asyncExecutor = BaseAsyncJobExecutor.getCurrentExecutor();
if (asyncExecutor != null) {
AsyncJobVO job = asyncExecutor.getJob();
if (s_logger.isInfoEnabled())
s_logger.info("CreateVolume created a new instance " + volume.getId() + ", update async job-" + job.getId() + " progress status");
_asyncMgr.updateAsyncJobAttachment(job.getId(), "volume", volume.getId());
_asyncMgr.updateAsyncJobStatus(job.getId(), BaseCmd.PROGRESS_INSTANCE_CREATED, volume.getId());
}
List<StoragePoolVO> poolsToAvoid = new ArrayList<StoragePoolVO>();
Set<Long> podsToAvoid = new HashSet<Long>();
Pair<HostPodVO, Long> pod = null;
while ((pod = _agentMgr.findPod(null, null, dc, account.getId(), podsToAvoid)) != null) {
if ((createdVolume = createVolume(volume, null, null, dc, pod.first(), null, null, diskOffering, poolsToAvoid, size)) != null) {
break;
} else {
podsToAvoid.add(pod.first().getId());
}
}
// Create an event
EventVO event = new EventVO();
event.setAccountId(accountId);
event.setUserId(userId);
event.setType(EventTypes.EVENT_VOLUME_CREATE);
event.setStartId(startEventId);
Transaction txn = Transaction.currentTxn();
txn.start();
if (createdVolume != null) {
// Increment the number of volumes
_accountMgr.incrementResourceCount(accountId, ResourceType.volume);
// Set event parameters
long sizeMB = createdVolume.getSize() / (1024 * 1024);
StoragePoolVO pool = _storagePoolDao.findById(createdVolume.getPoolId());
String eventParams = "id=" + createdVolume.getId() + "\ndoId=" + diskOffering.getId() + "\ntId=" + -1 + "\ndcId=" + dc.getId() + "\nsize=" + sizeMB;
event.setLevel(EventVO.LEVEL_INFO);
event.setDescription("Created volume: " + createdVolume.getName() + " with size: " + sizeMB + " MB in pool: " + pool.getName());
event.setParameters(eventParams);
_eventDao.persist(event);
} else {
// Mark the existing volume record as corrupted
volume.setStatus(AsyncInstanceCreateStatus.Corrupted);
volume.setDestroyed(true);
_volsDao.update(volume.getId(), volume);
}
txn.commit();
} catch (Exception e) {
s_logger.error("Unhandled exception while saving volume " + volumeName, e);
}
return createdVolume;
}
@Override
@DB
public void destroyVolume(VolumeVO volume) {
Transaction txn = Transaction.currentTxn();
txn.start();
Long volumeId = volume.getId();
_volsDao.destroyVolume(volumeId);
String eventParams = "id=" + volumeId;
EventVO event = new EventVO();
event.setAccountId(volume.getAccountId());
event.setUserId(1L);
event.setType(EventTypes.EVENT_VOLUME_DELETE);
event.setParameters(eventParams);
event.setDescription("Volume " +volume.getName()+ " deleted");
event.setLevel(EventVO.LEVEL_INFO);
_eventDao.persist(event);
// Delete the recurring snapshot policies for this volume.
_snapshotMgr.deletePoliciesForVolume(volumeId);
// Decrement the resource count for volumes
_accountMgr.decrementResourceCount(volume.getAccountId(), ResourceType.volume);
txn.commit();
}
@Override
public void createCapacityEntry(StoragePoolVO storagePool) {
SearchCriteria<CapacityVO> capacitySC = _capacityDao.createSearchCriteria();
capacitySC.addAnd("hostOrPoolId", SearchCriteria.Op.EQ, storagePool.getId());
capacitySC.addAnd("dataCenterId", SearchCriteria.Op.EQ, storagePool.getDataCenterId());
capacitySC.addAnd("capacityType", SearchCriteria.Op.EQ, CapacityVO.CAPACITY_TYPE_STORAGE);
List<CapacityVO> capacities = _capacityDao.search(capacitySC, null);
if (capacities.size() == 0) {
CapacityVO capacity = new CapacityVO(storagePool.getId(), storagePool.getDataCenterId(), storagePool.getPodId(), 0L, storagePool.getCapacityBytes(),
CapacityVO.CAPACITY_TYPE_STORAGE);
_capacityDao.persist(capacity);
} else {
CapacityVO capacity = capacities.get(0);
if (capacity.getTotalCapacity() != storagePool.getCapacityBytes()) {
capacity.setTotalCapacity(storagePool.getCapacityBytes());
_capacityDao.update(capacity.getId(), capacity);
}
}
s_logger.debug("Successfully set Capacity - " +storagePool.getCapacityBytes()+ " for CAPACITY_TYPE_STORAGE, DataCenterId - " +storagePool.getDataCenterId()+ ", HostOrPoolId - " +storagePool.getId()+ ", PodId " +storagePool.getPodId());
capacitySC = _capacityDao.createSearchCriteria();
capacitySC.addAnd("hostOrPoolId", SearchCriteria.Op.EQ, storagePool.getId());
capacitySC.addAnd("dataCenterId", SearchCriteria.Op.EQ, storagePool.getDataCenterId());
capacitySC.addAnd("capacityType", SearchCriteria.Op.EQ, CapacityVO.CAPACITY_TYPE_STORAGE_ALLOCATED);
capacities = _capacityDao.search(capacitySC, null);
if (capacities.size() == 0) {
int provFactor = 1;
if( storagePool.getPoolType() == StoragePoolType.NetworkFilesystem ) {
provFactor = _overProvisioningFactor;
}
CapacityVO capacity = new CapacityVO(storagePool.getId(), storagePool.getDataCenterId(), storagePool.getPodId(), 0L, storagePool.getCapacityBytes()
* provFactor, CapacityVO.CAPACITY_TYPE_STORAGE_ALLOCATED);
_capacityDao.persist(capacity);
} else {
CapacityVO capacity = capacities.get(0);
long currCapacity = _overProvisioningFactor * storagePool.getCapacityBytes();
if (capacity.getTotalCapacity() != currCapacity) {
capacity.setTotalCapacity(currCapacity);
_capacityDao.update(capacity.getId(), capacity);
}
}
s_logger.debug("Successfully set Capacity - " +storagePool.getCapacityBytes()* _overProvisioningFactor+ " for CAPACITY_TYPE_STORAGE_ALLOCATED, DataCenterId - " +storagePool.getDataCenterId()+ ", HostOrPoolId - " +storagePool.getId()+ ", PodId " +storagePool.getPodId());
}
@Override
public Answer sendToHostsOnStoragePool(Long poolId, Command cmd, String basicErrMsg) {
return sendToHostsOnStoragePool(poolId, cmd, basicErrMsg, 1, 0, false, null);
}
@Override
public Answer sendToHostsOnStoragePool(Long poolId, Command cmd, String basicErrMsg, int totalRetries, int pauseBeforeRetry, boolean shouldBeSnapshotCapable,
Long vmId) {
Answer answer = null;
Long hostId = null;
StoragePoolVO storagePool = _storagePoolDao.findById(poolId);
List<Long> hostsToAvoid = new ArrayList<Long>();
int tryCount = 0;
boolean sendToVmHost = sendToVmResidesOn(cmd);
if (chooseHostForStoragePool(storagePool, hostsToAvoid, sendToVmHost, vmId) == null) {
// Don't just fail. The host could be reconnecting.
// wait for some time for it to get connected
// Wait for 3*ping.interval, since the code attempts a manual
// reconnect after that timeout.
try {
Thread.sleep(3 * _pingInterval * 1000);
} catch (InterruptedException e) {
s_logger.error("Interrupted while waiting for any host on poolId: " + poolId + " to get connected. " + e.getMessage());
// continue.
}
}
while ((hostId = chooseHostForStoragePool(storagePool, hostsToAvoid, sendToVmHost, vmId)) != null && tryCount++ < totalRetries) {
String errMsg = basicErrMsg + " on host: " + hostId + " try: " + tryCount + ", reason: ";
try {
HostVO hostVO = _hostDao.findById(hostId);
if (shouldBeSnapshotCapable) {
if (hostVO == null ) {
hostsToAvoid.add(hostId);
continue;
}
}
s_logger.debug("Trying to execute Command: " + cmd + " on host: " + hostId + " try: " + tryCount);
answer = _agentMgr.send(hostId, cmd);
if (answer != null && answer.getResult()) {
return answer;
} else {
s_logger.warn(errMsg + ((answer != null) ? answer.getDetails() : "null"));
Thread.sleep(pauseBeforeRetry * 1000);
}
} catch (AgentUnavailableException e1) {
s_logger.warn(errMsg + e1.getMessage(), e1);
} catch (OperationTimedoutException e1) {
s_logger.warn(errMsg + e1.getMessage(), e1);
} catch (InterruptedException e) {
s_logger.warn(errMsg + e.getMessage(), e);
}
}
s_logger.error(basicErrMsg + ", no hosts available to execute command: " + cmd);
return answer;
}
protected class StorageGarbageCollector implements Runnable {
public StorageGarbageCollector() {
}
public void run() {
try {
s_logger.info("Storage Garbage Collection Thread is running.");
GlobalLock scanLock = GlobalLock.getInternLock(this.getClass().getName());
try {
if (scanLock.lock(3)) {
try {
cleanupStorage(true);
} finally {
scanLock.unlock();
}
}
} finally {
scanLock.releaseRef();
}
} catch (Exception e) {
s_logger.error("Caught the following Exception", e);
}
}
}
public void cleanupStorage(boolean recurring) {
// Cleanup primary storage pools
List<StoragePoolVO> storagePools = _storagePoolDao.listAllActive();
for (StoragePoolVO pool : storagePools) {
try {
if (recurring && pool.isLocal()) {
continue;
}
List<VMTemplateStoragePoolVO> unusedTemplatesInPool = _tmpltMgr.getUnusedTemplatesInPool(pool);
s_logger.debug("Storage pool garbage collector found " + unusedTemplatesInPool.size() + " templates to clean up in storage pool: " + pool.getName());
for (VMTemplateStoragePoolVO templatePoolVO : unusedTemplatesInPool) {
if (templatePoolVO.getDownloadState() != VMTemplateStorageResourceAssoc.Status.DOWNLOADED) {
s_logger.debug("Storage pool garbage collector is skipping templatePoolVO with ID: " + templatePoolVO.getId() + " because it is not completely downloaded.");
continue;
}
if (!templatePoolVO.getMarkedForGC()) {
templatePoolVO.setMarkedForGC(true);
_vmTemplatePoolDao.update(templatePoolVO.getId(), templatePoolVO);
s_logger.debug("Storage pool garbage collector has marked templatePoolVO with ID: " + templatePoolVO.getId() + " for garbage collection.");
continue;
}
_tmpltMgr.evictTemplateFromStoragePool(templatePoolVO);
}
} catch (Exception e) {
s_logger.warn("Problem cleaning up primary storage pool " + pool, e);
}
}
// Cleanup secondary storage hosts
List<HostVO> secondaryStorageHosts = _hostDao.listSecondaryStorageHosts();
for (HostVO secondaryStorageHost : secondaryStorageHosts) {
try {
long hostId = secondaryStorageHost.getId();
List<VMTemplateHostVO> destroyedTemplateHostVOs = _vmTemplateHostDao.listDestroyed(hostId);
s_logger.debug("Secondary storage garbage collector found " + destroyedTemplateHostVOs.size() + " templates to cleanup on secondary storage host: "
+ secondaryStorageHost.getName());
for (VMTemplateHostVO destroyedTemplateHostVO : destroyedTemplateHostVOs) {
if (!_tmpltMgr.templateIsDeleteable(destroyedTemplateHostVO)) {
s_logger.debug("Not deleting template at: " + destroyedTemplateHostVO.getInstallPath());
continue;
}
String installPath = destroyedTemplateHostVO.getInstallPath();
if (installPath != null) {
Answer answer = _agentMgr.easySend(hostId, new DeleteTemplateCommand(destroyedTemplateHostVO.getInstallPath()));
if (answer == null || !answer.getResult()) {
s_logger.debug("Failed to delete template at: " + destroyedTemplateHostVO.getInstallPath());
} else {
_vmTemplateHostDao.remove(destroyedTemplateHostVO.getId());
s_logger.debug("Deleted template at: " + destroyedTemplateHostVO.getInstallPath());
}
} else {
_vmTemplateHostDao.remove(destroyedTemplateHostVO.getId());
}
}
} catch (Exception e) {
s_logger.warn("problem cleaning up secondary storage " + secondaryStorageHost, e);
}
}
List<VolumeVO> vols = _volsDao.listRemovedButNotDestroyed();
for (VolumeVO vol : vols) {
try {
Long poolId = vol.getPoolId();
Answer answer = null;
StoragePoolVO pool = _storagePoolDao.findById(poolId);
final DestroyCommand cmd = new DestroyCommand(pool, vol);
answer = sendToPool(pool, cmd);
if (answer != null && answer.getResult()) {
s_logger.debug("Destroyed " + vol);
vol.setDestroyed(true);
_volsDao.update(vol.getId(), vol);
}
} catch (Exception e) {
s_logger.warn("Unable to destroy " + vol.getId(), e);
}
}
}
public List<StoragePoolVO> getStoragePoolsForVm(long vmId) {
SearchCriteria<StoragePoolVO> sc = PoolsUsedByVmSearch.create();
sc.setJoinParameters("volumes", "vm", vmId);
return _storagePoolDao.search(sc, null);
}
public String getPrimaryStorageNameLabel(VolumeVO volume) {
Long poolId = volume.getPoolId();
// poolId is null only if volume is destroyed, which has been checked before.
assert poolId != null;
StoragePoolVO storagePoolVO = _storagePoolDao.findById(poolId);
assert storagePoolVO != null;
return storagePoolVO.getUuid();
}
@Override
@DB
public boolean preparePrimaryStorageForMaintenance(long primaryStorageId, long userId)
{
boolean destroyVolumes = false;
long count = 1;
long consoleProxyId = 0;
long ssvmId = 0;
try
{
//1. Get the primary storage record
StoragePoolVO primaryStorage = _storagePoolDao.findById(primaryStorageId);
if(primaryStorage == null)
{
s_logger.warn("The primary storage does not exist");
return false;
}
//check to see if other ps exist
//if they do, then we can migrate over the system vms to them, destroy volumes for sys vms
//if they dont, then do NOT destroy the volumes on this one
count = _storagePoolDao.countBy(primaryStorage.getId(), Status.Up);
if(count>1)
{
destroyVolumes = true;
}
//2. Get a list of all the volumes within this storage pool
List<VolumeVO> allVolumes = _volsDao.findByPoolId(primaryStorageId);
List<VolumeVO> markedVolumes = new ArrayList<VolumeVO>();
//3. Each volume has an instance associated with it, stop the instance if running
for(VolumeVO volume : allVolumes)
{
VMInstanceVO vmInstance = _vmInstanceDao.findById(volume.getInstanceId());
//shut down the running vms
if(vmInstance.getState().equals(State.Running) || vmInstance.getState().equals(State.Stopped) || vmInstance.getState().equals(State.Stopping) || vmInstance.getState().equals(State.Starting))
{
//if the instance is of type consoleproxy, call the console proxy
if(vmInstance.getType().equals(VirtualMachine.Type.ConsoleProxy))
{
//add this volume to be removed if flag=true
if(destroyVolumes)
markedVolumes.add(volume);
//make sure it is not restarted again, update config to set flag to false
_configMgr.updateConfiguration(userId, "consoleproxy.restart", "false");
//create a dummy event
long eventId = saveScheduledEvent(User.UID_SYSTEM, Account.ACCOUNT_ID_SYSTEM, EventTypes.EVENT_PROXY_STOP, "stopping console proxy with Id: "+vmInstance.getId());
//call the consoleproxymanager
if(!_consoleProxyMgr.stopProxy(vmInstance.getId(), eventId))
{
s_logger.warn("There was an error stopping the console proxy id: "+vmInstance.getId()+" ,cannot enable storage maintenance");
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
}
else
{
if(destroyVolumes)
{
//proxy vm is stopped, and we have another ps available
//get the id for restart
consoleProxyId = vmInstance.getId();
}
}
}
//if the instance is of type uservm, call the user vm manager
if(vmInstance.getType().equals(VirtualMachine.Type.User))
{
if(!_userVmMgr.stopVirtualMachine(userId, vmInstance.getId()))
{
s_logger.warn("There was an error stopping the user vm id: "+vmInstance.getId()+" ,cannot enable storage maintenance");
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
}
}
//if the instance is of type secondary storage vm, call the secondary storage vm manager
if(vmInstance.getType().equals(VirtualMachine.Type.SecondaryStorageVm))
{
//add this volume to be removed if flag=true
if(destroyVolumes)
markedVolumes.add(volume);
//create a dummy event
long eventId1 = saveScheduledEvent(User.UID_SYSTEM, Account.ACCOUNT_ID_SYSTEM, EventTypes.EVENT_SSVM_STOP, "stopping ssvm with Id: "+vmInstance.getId());
if(!_secStorageMgr.stopSecStorageVm(vmInstance.getId(), eventId1))
{
s_logger.warn("There was an error stopping the ssvm id: "+vmInstance.getId()+" ,cannot enable storage maintenance");
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
}
else
{
if(destroyVolumes)
{
//ss vm is stopped, and we have another ps available
//get the id for restart
ssvmId = vmInstance.getId();
}
}
}
//if the instance is of type domain router vm, call the network manager
if(vmInstance.getType().equals(VirtualMachine.Type.DomainRouter))
{
//add this volume to be removed if flag=true
if(destroyVolumes)
markedVolumes.add(volume);
//create a dummy event
long eventId2 = saveScheduledEvent(User.UID_SYSTEM, Account.ACCOUNT_ID_SYSTEM, EventTypes.EVENT_ROUTER_STOP, "stopping domain router with Id: "+vmInstance.getId());
if(!_networkMgr.stopRouter(vmInstance.getId(), eventId2))
{
s_logger.warn("There was an error stopping the domain router id: "+vmInstance.getId()+" ,cannot enable primary storage maintenance");
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
}
}
}
}
//4. Mark the volumes as removed
for(VolumeVO vol : markedVolumes)
{
_volsDao.remove(vol.getId());
}
//5. Restart all the system vms conditionally
if(destroyVolumes) //this means we have another ps. Ok to restart
{
//create a dummy event
long eventId = saveScheduledEvent(User.UID_SYSTEM, Account.ACCOUNT_ID_SYSTEM, EventTypes.EVENT_SSVM_START, "starting ssvm with Id: "+ssvmId);
if(_secStorageMgr.startSecStorageVm(ssvmId, eventId)==null)
{
s_logger.warn("There was an error starting the ssvm id: "+ssvmId+" on another storage pool, cannot enable primary storage maintenance");
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
}
//create a dummy event
long eventId1 = saveScheduledEvent(User.UID_SYSTEM, Account.ACCOUNT_ID_SYSTEM, EventTypes.EVENT_PROXY_START, "starting console proxy with Id: "+consoleProxyId);
//Restore config val for consoleproxy.restart to true
_configMgr.updateConfiguration(userId, "consoleproxy.restart", "true");
if(_consoleProxyMgr.startProxy(consoleProxyId, eventId1)==null)
{
s_logger.warn("There was an error starting the console proxy id: "+consoleProxyId+" on another storage pool, cannot enable primary storage maintenance");
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false; }
}
//6. Update the status
primaryStorage.setStatus(Status.Maintenance);
_storagePoolDao.persist(primaryStorage);
} catch (Exception e) {
s_logger.error("Exception in enabling primary storage maintenance:"+e);
}
return true;
}
private Long saveScheduledEvent(Long userId, Long accountId, String type, String description)
{
EventVO event = new EventVO();
event.setUserId(userId);
event.setAccountId(accountId);
event.setType(type);
event.setState(EventState.Scheduled);
event.setDescription("Scheduled async job for "+description);
event = _eventDao.persist(event);
return event.getId();
}
@Override
@DB
public boolean cancelPrimaryStorageForMaintenance(long primaryStorageId,long userId)
{
//1. Get the primary storage record
StoragePoolVO primaryStorage = _storagePoolDao.findById(primaryStorageId);
if(primaryStorage == null)
{
s_logger.warn("The primary storage does not exist");
return false;
}
//2. Get a list of all the volumes within this storage pool
List<VolumeVO> allVolumes = _volsDao.findByPoolId(primaryStorageId);
//3. If the volume is not removed AND not destroyed, start the vm corresponding to it
for(VolumeVO volume: allVolumes)
{
if((!volume.destroyed) && (volume.removed==null))
{
VMInstanceVO vmInstance = _vmInstanceDao.findById(volume.getInstanceId());
if(vmInstance.getState().equals(State.Stopping) || vmInstance.getState().equals(State.Stopped))
{
//if the instance is of type consoleproxy, call the console proxy
if(vmInstance.getType().equals(VirtualMachine.Type.ConsoleProxy))
{
//create a dummy event
long eventId = saveScheduledEvent(User.UID_SYSTEM, Account.ACCOUNT_ID_SYSTEM, EventTypes.EVENT_PROXY_START, "starting console proxy with Id: "+vmInstance.getId());
if(_consoleProxyMgr.startProxy(vmInstance.getId(), eventId)==null)
{
s_logger.warn("There was an error starting the console proxy id: "+vmInstance.getId()+" on storage pool, cannot complete primary storage maintenance");
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
}
}
//if the instance is of type ssvm, call the ssvm manager
if(vmInstance.getType().equals(VirtualMachine.Type.SecondaryStorageVm))
{
//create a dummy event
long eventId = saveScheduledEvent(User.UID_SYSTEM, Account.ACCOUNT_ID_SYSTEM, EventTypes.EVENT_SSVM_START, "starting ssvm with Id: "+vmInstance.getId());
if(_secStorageMgr.startSecStorageVm(vmInstance.getId(), eventId)==null)
{
s_logger.warn("There was an error starting the ssvm id: "+vmInstance.getId()+" on storage pool, cannot complete primary storage maintenance");
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
}
}
//if the instance is of type user vm, call the user vm manager
if(vmInstance.getType().equals(VirtualMachine.Type.User))
{
//create a dummy event
long eventId = saveScheduledEvent(User.UID_SYSTEM, Account.ACCOUNT_ID_SYSTEM, EventTypes.EVENT_VM_START, "starting ssvm with Id: "+vmInstance.getId());
try {
if(_userVmMgr.start(vmInstance.getId(), eventId)==null)
{
s_logger.warn("There was an error starting the ssvm id: "+vmInstance.getId()+" on storage pool, cannot complete primary storage maintenance");
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
}
} catch (StorageUnavailableException e) {
s_logger.warn("There was an error starting the ssvm id: "+vmInstance.getId()+" on storage pool, cannot complete primary storage maintenance");
s_logger.warn(e);
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
} catch (InsufficientCapacityException e) {
s_logger.warn("There was an error starting the ssvm id: "+vmInstance.getId()+" on storage pool, cannot complete primary storage maintenance");
s_logger.warn(e);
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
} catch (ConcurrentOperationException e) {
s_logger.warn("There was an error starting the ssvm id: "+vmInstance.getId()+" on storage pool, cannot complete primary storage maintenance");
s_logger.warn(e);
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
} catch (ExecutionException e) {
s_logger.warn("There was an error starting the ssvm id: "+vmInstance.getId()+" on storage pool, cannot complete primary storage maintenance");
s_logger.warn(e);
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
}
}
}
}
}
//Restore config val for consoleproxy.restart to true
try {
_configMgr.updateConfiguration(userId, "consoleproxy.restart", "true");
} catch (InvalidParameterValueException e) {
s_logger.warn("Error changing consoleproxy.restart back to false at end of cancel maintenance:"+e);
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
} catch (InternalErrorException e) {
s_logger.warn("Error changing consoleproxy.restart back to false at end of cancel maintenance:"+e);
primaryStorage.setStatus(Status.ErrorInMaintenance);
_storagePoolDao.persist(primaryStorage);
return false;
}
//Change the storage state back to up
primaryStorage.setStatus(Status.Up);
_storagePoolDao.persist(primaryStorage);
return true;
}
private boolean sendToVmResidesOn(Command cmd) {
if ((_hypervisorType == Hypervisor.Type.KVM) &&
((cmd instanceof ManageSnapshotCommand) ||
(cmd instanceof BackupSnapshotCommand))) {
return true;
} else {
return false;
}
}
}
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