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cloudstack/server/src/com/cloud/storage/snapshot/SnapshotManagerImpl.java
Edison Su 51a8086cf6 Merge branch 'pluggable_vm_snapshot' 
Conflicts:
	client/tomcatconf/applicationContext.xml.in
	engine/storage/integration-test/test/org/apache/cloudstack/storage/test/SnapshotTest.java
	engine/storage/integration-test/test/resources/storageContext.xml
	server/src/com/cloud/storage/snapshot/SnapshotManagerImpl.java
	server/src/com/cloud/vm/snapshot/VMSnapshotManagerImpl.java
2013-10-25 16:47:17 -07:00

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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package com.cloud.storage.snapshot;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.TimeZone;
import javax.ejb.Local;
import javax.inject.Inject;
import javax.naming.ConfigurationException;
import org.apache.cloudstack.api.command.user.snapshot.CreateSnapshotPolicyCmd;
import org.apache.cloudstack.api.command.user.snapshot.DeleteSnapshotPoliciesCmd;
import org.apache.cloudstack.api.command.user.snapshot.ListSnapshotPoliciesCmd;
import org.apache.cloudstack.api.command.user.snapshot.ListSnapshotsCmd;
import org.apache.cloudstack.context.CallContext;
import org.apache.cloudstack.engine.orchestration.service.VolumeOrchestrationService;
import org.apache.cloudstack.engine.subsystem.api.storage.DataStore;
import org.apache.cloudstack.engine.subsystem.api.storage.DataStoreManager;
import org.apache.cloudstack.engine.subsystem.api.storage.EndPoint;
import org.apache.cloudstack.engine.subsystem.api.storage.EndPointSelector;
import org.apache.cloudstack.engine.subsystem.api.storage.SnapshotDataFactory;
import org.apache.cloudstack.engine.subsystem.api.storage.SnapshotInfo;
import org.apache.cloudstack.engine.subsystem.api.storage.SnapshotService;
import org.apache.cloudstack.engine.subsystem.api.storage.SnapshotStrategy;
import org.apache.cloudstack.engine.subsystem.api.storage.SnapshotStrategy.SnapshotOperation;
import org.apache.cloudstack.engine.subsystem.api.storage.StrategyPriority;
import org.apache.cloudstack.engine.subsystem.api.storage.StorageStrategyFactory;
import org.apache.cloudstack.engine.subsystem.api.storage.SnapshotStrategy.SnapshotOperation;
import org.apache.cloudstack.engine.subsystem.api.storage.StrategyPriority;
import org.apache.cloudstack.engine.subsystem.api.storage.VolumeDataFactory;
import org.apache.cloudstack.engine.subsystem.api.storage.VolumeInfo;
import org.apache.cloudstack.engine.subsystem.api.storage.ZoneScope;
import org.apache.cloudstack.framework.config.dao.ConfigurationDao;
import org.apache.cloudstack.storage.datastore.db.PrimaryDataStoreDao;
import org.apache.cloudstack.storage.datastore.db.SnapshotDataStoreDao;
import org.apache.cloudstack.storage.datastore.db.SnapshotDataStoreVO;
import org.apache.cloudstack.storage.datastore.db.StoragePoolVO;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;
import com.cloud.agent.AgentManager;
import com.cloud.agent.api.Answer;
import com.cloud.agent.api.Command;
import com.cloud.agent.api.DeleteSnapshotsDirCommand;
import com.cloud.alert.AlertManager;
import com.cloud.api.commands.ListRecurringSnapshotScheduleCmd;
import com.cloud.configuration.Config;
import com.cloud.configuration.Resource.ResourceType;
import com.cloud.dc.ClusterVO;
import com.cloud.dc.dao.ClusterDao;
import com.cloud.dc.dao.DataCenterDao;
import com.cloud.domain.dao.DomainDao;
import com.cloud.event.ActionEvent;
import com.cloud.event.ActionEventUtils;
import com.cloud.event.EventTypes;
import com.cloud.event.EventVO;
import com.cloud.event.UsageEventUtils;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.exception.PermissionDeniedException;
import com.cloud.exception.ResourceAllocationException;
import com.cloud.exception.StorageUnavailableException;
import com.cloud.host.HostVO;
import com.cloud.hypervisor.Hypervisor.HypervisorType;
import com.cloud.projects.Project.ListProjectResourcesCriteria;
import com.cloud.resource.ResourceManager;
import com.cloud.server.ResourceTag.ResourceObjectType;
import com.cloud.storage.CreateSnapshotPayload;
import com.cloud.storage.DataStoreRole;
import com.cloud.storage.ScopeType;
import com.cloud.storage.Snapshot;
import com.cloud.storage.Snapshot.Type;
import com.cloud.storage.SnapshotPolicyVO;
import com.cloud.storage.SnapshotScheduleVO;
import com.cloud.storage.SnapshotVO;
import com.cloud.storage.Storage;
import com.cloud.storage.StorageManager;
import com.cloud.storage.StoragePool;
import com.cloud.storage.VMTemplateVO;
import com.cloud.storage.Volume;
import com.cloud.storage.VolumeVO;
import com.cloud.storage.dao.DiskOfferingDao;
import com.cloud.storage.dao.SnapshotDao;
import com.cloud.storage.dao.SnapshotPolicyDao;
import com.cloud.storage.dao.SnapshotScheduleDao;
import com.cloud.storage.dao.VMTemplateDao;
import com.cloud.storage.dao.VolumeDao;
import com.cloud.storage.secondary.SecondaryStorageVmManager;
import com.cloud.storage.template.TemplateConstants;
import com.cloud.tags.ResourceTagVO;
import com.cloud.tags.dao.ResourceTagDao;
import com.cloud.template.TemplateManager;
import com.cloud.user.Account;
import com.cloud.user.AccountManager;
import com.cloud.user.AccountVO;
import com.cloud.user.DomainManager;
import com.cloud.user.ResourceLimitService;
import com.cloud.user.User;
import com.cloud.user.dao.AccountDao;
import com.cloud.utils.DateUtil;
import com.cloud.utils.DateUtil.IntervalType;
import com.cloud.utils.NumbersUtil;
import com.cloud.utils.Pair;
import com.cloud.utils.Ternary;
import com.cloud.utils.component.ManagerBase;
import com.cloud.utils.db.DB;
import com.cloud.utils.db.Filter;
import com.cloud.utils.db.JoinBuilder;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.exception.CloudRuntimeException;
import com.cloud.vm.UserVmVO;
import com.cloud.vm.VMInstanceVO;
import com.cloud.vm.VirtualMachine;
import com.cloud.vm.VirtualMachine.State;
import com.cloud.vm.dao.UserVmDao;
import com.cloud.vm.snapshot.VMSnapshot;
import com.cloud.vm.snapshot.VMSnapshotVO;
import com.cloud.vm.snapshot.dao.VMSnapshotDao;
@Component
@Local(value = { SnapshotManager.class, SnapshotApiService.class })
public class SnapshotManagerImpl extends ManagerBase implements SnapshotManager, SnapshotApiService {
private static final Logger s_logger = Logger.getLogger(SnapshotManagerImpl.class);
@Inject
protected VMTemplateDao _templateDao;
@Inject
protected UserVmDao _vmDao;
@Inject
protected VolumeDao _volsDao;
@Inject
protected AccountDao _accountDao;
@Inject
protected DataCenterDao _dcDao;
@Inject
protected DiskOfferingDao _diskOfferingDao;
@Inject
protected SnapshotDao _snapshotDao;
@Inject
protected SnapshotDataStoreDao _snapshotStoreDao;
@Inject
protected PrimaryDataStoreDao _storagePoolDao;
@Inject
protected SnapshotPolicyDao _snapshotPolicyDao = null;
@Inject
protected SnapshotScheduleDao _snapshotScheduleDao;
@Inject
protected DomainDao _domainDao;
@Inject
protected StorageManager _storageMgr;
@Inject
protected AgentManager _agentMgr;
@Inject
protected SnapshotScheduler _snapSchedMgr;
@Inject
protected AccountManager _accountMgr;
@Inject
private AlertManager _alertMgr;
@Inject
protected ClusterDao _clusterDao;
@Inject
private ResourceLimitService _resourceLimitMgr;
@Inject
private SecondaryStorageVmManager _ssvmMgr;
@Inject
private DomainManager _domainMgr;
@Inject
private ResourceTagDao _resourceTagDao;
@Inject
private ConfigurationDao _configDao;
@Inject
private VMSnapshotDao _vmSnapshotDao;
String _name;
@Inject TemplateManager templateMgr;
@Inject VolumeOrchestrationService volumeMgr;
@Inject DataStoreManager dataStoreMgr;
@Inject SnapshotService snapshotSrv;
@Inject VolumeDataFactory volFactory;
@Inject SnapshotDataFactory snapshotFactory;
@Inject EndPointSelector _epSelector;
@Inject
private ResourceManager _resourceMgr;
@Inject StorageStrategyFactory _storageStrategyFactory;
private int _totalRetries;
private int _pauseInterval;
private int _backupsnapshotwait;
Boolean backup;
protected SearchBuilder<SnapshotVO> PolicySnapshotSearch;
protected SearchBuilder<SnapshotPolicyVO> PoliciesForSnapSearch;
@Override
public Answer sendToPool(Volume vol, Command cmd) {
StoragePool pool = (StoragePool)dataStoreMgr.getPrimaryDataStore(vol.getPoolId());
long[] hostIdsToTryFirst = null;
Long vmHostId = getHostIdForSnapshotOperation(vol);
if (vmHostId != null) {
hostIdsToTryFirst = new long[] { vmHostId };
}
List<Long> hostIdsToAvoid = new ArrayList<Long>();
for (int retry = _totalRetries; retry >= 0; retry--) {
try {
Pair<Long, Answer> result = _storageMgr.sendToPool(pool, hostIdsToTryFirst, hostIdsToAvoid, cmd);
if (result.second().getResult()) {
return result.second();
}
if (s_logger.isDebugEnabled()) {
s_logger.debug("The result for " + cmd.getClass().getName() + " is " + result.second().getDetails() + " through " + result.first());
}
hostIdsToAvoid.add(result.first());
} catch (StorageUnavailableException e1) {
s_logger.warn("Storage unavailable ", e1);
return null;
}
try {
Thread.sleep(_pauseInterval * 1000);
} catch (InterruptedException e) {
}
s_logger.debug("Retrying...");
}
s_logger.warn("After " + _totalRetries + " retries, the command " + cmd.getClass().getName() + " did not succeed.");
return null;
}
@Override
public Long getHostIdForSnapshotOperation(Volume vol) {
VMInstanceVO vm = _vmDao.findById(vol.getInstanceId());
if (vm != null) {
if(vm.getHostId() != null) {
return vm.getHostId();
} else if(vm.getLastHostId() != null) {
return vm.getLastHostId();
}
}
return null;
}
@Override
public boolean revertSnapshot(Long snapshotId) {
Snapshot snapshot = _snapshotDao.findById(snapshotId);
if (snapshot == null) {
throw new InvalidParameterValueException("No such snapshot");
}
Volume volume = _volsDao.findById(snapshot.getVolumeId());
Long instanceId = volume.getInstanceId();
// If this volume is attached to an VM, then the VM needs to be in the stopped state
// in order to revert the volume
if (instanceId != null) {
UserVmVO vm = _vmDao.findById(instanceId);
if (vm.getState() != State.Stopped && vm.getState() != State.Shutdowned) {
throw new InvalidParameterValueException("The VM the specified disk is attached to is not in the shutdown state.");
}
}
SnapshotStrategy snapshotStrategy = _storageStrategyFactory.getSnapshotStrategy(snapshot, SnapshotOperation.REVERT);
if (snapshotStrategy == null) {
s_logger.error("Unable to find snaphot strategy to handle snapshot with id '"+snapshotId+"'");
return false;
}
return snapshotStrategy.revertSnapshot(snapshotId);
}
@Override
@DB
@ActionEvent(eventType = EventTypes.EVENT_SNAPSHOT_CREATE, eventDescription = "creating snapshot", async = true)
public Snapshot createSnapshot(Long volumeId, Long policyId, Long snapshotId, Account snapshotOwner) {
VolumeInfo volume = volFactory.getVolume(volumeId);
if (volume == null) {
throw new InvalidParameterValueException("No such volume exist");
}
if (volume.getState() != Volume.State.Ready) {
throw new InvalidParameterValueException("Volume is not in ready state");
}
boolean backedUp = false;
// does the caller have the authority to act on this volume
_accountMgr.checkAccess(CallContext.current().getCallingAccount(), null, true, volume);
SnapshotInfo snapshot = snapshotFactory.getSnapshot(snapshotId, DataStoreRole.Primary);
try {
postCreateSnapshot(volumeId, snapshot.getId(), policyId);
//Check if the snapshot was removed while backingUp. If yes, do not log snapshot create usage event
SnapshotVO freshSnapshot = _snapshotDao.findById(snapshot.getId());
if ((freshSnapshot != null) && backedUp) {
UsageEventUtils.publishUsageEvent(EventTypes.EVENT_SNAPSHOT_CREATE, snapshot.getAccountId(),
snapshot.getDataCenterId(), snapshotId, snapshot.getName(), null, null,
volume.getSize(), snapshot.getClass().getName(), snapshot.getUuid());
}
_resourceLimitMgr.incrementResourceCount(snapshotOwner.getId(), ResourceType.snapshot);
} catch(Exception e) {
s_logger.debug("Failed to create snapshot", e);
if (backup) {
_resourceLimitMgr.decrementResourceCount(snapshotOwner.getId(), ResourceType.secondary_storage,
new Long(volume.getSize()));
} else {
_resourceLimitMgr.decrementResourceCount(snapshotOwner.getId(), ResourceType.primary_storage,
new Long(volume.getSize()));
}
throw new CloudRuntimeException("Failed to create snapshot", e);
}
return snapshot;
}
@Override
public Snapshot backupSnapshot(Long snapshotId) {
SnapshotInfo snapshot = snapshotFactory.getSnapshot(snapshotId, DataStoreRole.Image);
if (snapshot != null) {
throw new CloudRuntimeException("Already in the backup snapshot:" + snapshotId);
}
return snapshotSrv.backupSnapshot(snapshot);
}
@Override
public SnapshotVO getParentSnapshot(VolumeInfo volume) {
long preId = _snapshotDao.getLastSnapshot(volume.getId(), DataStoreRole.Primary);
SnapshotVO preSnapshotVO = null;
if (preId != 0 && !(volume.getLastPoolId() != null && !volume.getLastPoolId().equals(volume.getPoolId()))) {
preSnapshotVO = _snapshotDao.findByIdIncludingRemoved(preId);
}
return preSnapshotVO;
}
private Long getSnapshotUserId() {
Long userId = CallContext.current().getCallingUserId();
if (userId == null) {
return User.UID_SYSTEM;
}
return userId;
}
private void postCreateSnapshot(Long volumeId, Long snapshotId, Long policyId) {
Long userId = getSnapshotUserId();
SnapshotVO snapshot = _snapshotDao.findById(snapshotId);
if (policyId != Snapshot.MANUAL_POLICY_ID) {
SnapshotScheduleVO snapshotSchedule = _snapshotScheduleDao.getCurrentSchedule(volumeId, policyId, true);
assert snapshotSchedule != null;
snapshotSchedule.setSnapshotId(snapshotId);
_snapshotScheduleDao.update(snapshotSchedule.getId(), snapshotSchedule);
}
if (snapshot != null && snapshot.isRecursive()) {
postCreateRecurringSnapshotForPolicy(userId, volumeId, snapshotId, policyId);
}
}
private void postCreateRecurringSnapshotForPolicy(long userId, long volumeId, long snapshotId, long policyId) {
// Use count query
SnapshotVO spstVO = _snapshotDao.findById(snapshotId);
Type type = spstVO.getRecurringType();
int maxSnaps = type.getMax();
List<SnapshotVO> snaps = listSnapsforVolumeType(volumeId, type);
SnapshotPolicyVO policy = _snapshotPolicyDao.findById(policyId);
if (policy != null && policy.getMaxSnaps() < maxSnaps) {
maxSnaps = policy.getMaxSnaps();
}
while (snaps.size() > maxSnaps && snaps.size() > 1) {
SnapshotVO oldestSnapshot = snaps.get(0);
long oldSnapId = oldestSnapshot.getId();
if (policy != null) {
s_logger.debug("Max snaps: " + policy.getMaxSnaps() + " exceeded for snapshot policy with Id: " + policyId + ". Deleting oldest snapshot: " + oldSnapId);
}
if(deleteSnapshot(oldSnapId)){
//log Snapshot delete event
ActionEventUtils.onCompletedActionEvent(User.UID_SYSTEM, oldestSnapshot.getAccountId(), EventVO.LEVEL_INFO, EventTypes.EVENT_SNAPSHOT_DELETE, "Successfully deleted oldest snapshot: " + oldSnapId, 0);
}
snaps.remove(oldestSnapshot);
}
}
@Override
@DB
@ActionEvent(eventType = EventTypes.EVENT_SNAPSHOT_DELETE, eventDescription = "deleting snapshot", async = true)
public boolean deleteSnapshot(long snapshotId) {
Account caller = CallContext.current().getCallingAccount();
// Verify parameters
SnapshotVO snapshotCheck = _snapshotDao.findById(snapshotId);
if (snapshotCheck == null) {
throw new InvalidParameterValueException("unable to find a snapshot with id " + snapshotId);
}
_accountMgr.checkAccess(caller, null, true, snapshotCheck);
SnapshotStrategy snapshotStrategy = _storageStrategyFactory.getSnapshotStrategy(snapshotCheck, SnapshotOperation.DELETE);
if (snapshotStrategy == null) {
s_logger.error("Unable to find snaphot strategy to handle snapshot with id '"+snapshotId+"'");
return false;
}
try {
boolean result = snapshotStrategy.deleteSnapshot(snapshotId);
if (result) {
if (snapshotCheck.getState() == Snapshot.State.BackedUp) {
UsageEventUtils.publishUsageEvent(EventTypes.EVENT_SNAPSHOT_DELETE, snapshotCheck.getAccountId(),
snapshotCheck.getDataCenterId(), snapshotId, snapshotCheck.getName(), null, null, 0L,
snapshotCheck.getClass().getName(), snapshotCheck.getUuid());
}
_resourceLimitMgr.decrementResourceCount(snapshotCheck.getAccountId(), ResourceType.snapshot);
_resourceLimitMgr.decrementResourceCount(snapshotCheck.getAccountId(), ResourceType.secondary_storage,
new Long(snapshotCheck.getSize()));
}
return result;
} catch (Exception e) {
s_logger.debug("Failed to delete snapshot: " + snapshotCheck.getId() + ":" + e.toString());
throw new CloudRuntimeException("Failed to delete snapshot:" + e.toString());
}
}
@Override
public String getSecondaryStorageURL(SnapshotVO snapshot) {
SnapshotDataStoreVO snapshotStore = _snapshotStoreDao.findBySnapshot(snapshot.getId(), DataStoreRole.Image);
if (snapshotStore != null){
DataStore store = dataStoreMgr.getDataStore(snapshotStore.getDataStoreId(), DataStoreRole.Image);
if ( store != null ){
return store.getUri();
}
}
throw new CloudRuntimeException("Can not find secondary storage hosting the snapshot");
}
@Override
public Pair<List<? extends Snapshot>, Integer> listSnapshots(ListSnapshotsCmd cmd) {
Long volumeId = cmd.getVolumeId();
String name = cmd.getSnapshotName();
Long id = cmd.getId();
String keyword = cmd.getKeyword();
String snapshotTypeStr = cmd.getSnapshotType();
String intervalTypeStr = cmd.getIntervalType();
Map<String, String> tags = cmd.getTags();
Long zoneId = cmd.getZoneId();
Account caller = CallContext.current().getCallingAccount();
List<Long> permittedAccounts = new ArrayList<Long>();
// Verify parameters
if (volumeId != null) {
VolumeVO volume = _volsDao.findById(volumeId);
if (volume != null) {
_accountMgr.checkAccess(CallContext.current().getCallingAccount(), null, true, volume);
}
}
Ternary<Long, Boolean, ListProjectResourcesCriteria> domainIdRecursiveListProject = new Ternary<Long, Boolean, ListProjectResourcesCriteria>(cmd.getDomainId(), cmd.isRecursive(), null);
_accountMgr.buildACLSearchParameters(caller, id, cmd.getAccountName(), cmd.getProjectId(), permittedAccounts, domainIdRecursiveListProject, cmd.listAll(), false);
Long domainId = domainIdRecursiveListProject.first();
Boolean isRecursive = domainIdRecursiveListProject.second();
ListProjectResourcesCriteria listProjectResourcesCriteria = domainIdRecursiveListProject.third();
Filter searchFilter = new Filter(SnapshotVO.class, "created", false, cmd.getStartIndex(), cmd.getPageSizeVal());
SearchBuilder<SnapshotVO> sb = _snapshotDao.createSearchBuilder();
_accountMgr.buildACLSearchBuilder(sb, domainId, isRecursive, permittedAccounts, listProjectResourcesCriteria);
sb.and("statusNEQ", sb.entity().getState(), SearchCriteria.Op.NEQ); //exclude those Destroyed snapshot, not showing on UI
sb.and("volumeId", sb.entity().getVolumeId(), SearchCriteria.Op.EQ);
sb.and("name", sb.entity().getName(), SearchCriteria.Op.LIKE);
sb.and("id", sb.entity().getId(), SearchCriteria.Op.EQ);
sb.and("snapshotTypeEQ", sb.entity().getsnapshotType(), SearchCriteria.Op.IN);
sb.and("snapshotTypeNEQ", sb.entity().getsnapshotType(), SearchCriteria.Op.NEQ);
sb.and("dataCenterId", sb.entity().getDataCenterId(), SearchCriteria.Op.EQ);
if (tags != null && !tags.isEmpty()) {
SearchBuilder<ResourceTagVO> tagSearch = _resourceTagDao.createSearchBuilder();
for (int count=0; count < tags.size(); count++) {
tagSearch.or().op("key" + String.valueOf(count), tagSearch.entity().getKey(), SearchCriteria.Op.EQ);
tagSearch.and("value" + String.valueOf(count), tagSearch.entity().getValue(), SearchCriteria.Op.EQ);
tagSearch.cp();
}
tagSearch.and("resourceType", tagSearch.entity().getResourceType(), SearchCriteria.Op.EQ);
sb.groupBy(sb.entity().getId());
sb.join("tagSearch", tagSearch, sb.entity().getId(), tagSearch.entity().getResourceId(), JoinBuilder.JoinType.INNER);
}
SearchCriteria<SnapshotVO> sc = sb.create();
_accountMgr.buildACLSearchCriteria(sc, domainId, isRecursive, permittedAccounts, listProjectResourcesCriteria);
sc.setParameters("statusNEQ", Snapshot.State.Destroyed);
if (volumeId != null) {
sc.setParameters("volumeId", volumeId);
}
if (tags != null && !tags.isEmpty()) {
int count = 0;
sc.setJoinParameters("tagSearch", "resourceType", ResourceObjectType.Snapshot.toString());
for (String key : tags.keySet()) {
sc.setJoinParameters("tagSearch", "key" + String.valueOf(count), key);
sc.setJoinParameters("tagSearch", "value" + String.valueOf(count), tags.get(key));
count++;
}
}
if (zoneId != null) {
sc.setParameters("dataCenterId", zoneId);
}
if (name != null) {
sc.setParameters("name", "%" + name + "%");
}
if (id != null) {
sc.setParameters("id", id);
}
if (keyword != null) {
SearchCriteria<SnapshotVO> ssc = _snapshotDao.createSearchCriteria();
ssc.addOr("name", SearchCriteria.Op.LIKE, "%" + keyword + "%");
sc.addAnd("name", SearchCriteria.Op.SC, ssc);
}
if (snapshotTypeStr != null) {
Type snapshotType = SnapshotVO.getSnapshotType(snapshotTypeStr);
if (snapshotType == null) {
throw new InvalidParameterValueException("Unsupported snapshot type " + snapshotTypeStr);
}
if (snapshotType == Type.RECURRING) {
sc.setParameters("snapshotTypeEQ", Type.HOURLY.ordinal(), Type.DAILY.ordinal(), Type.WEEKLY.ordinal(), Type.MONTHLY.ordinal());
} else {
sc.setParameters("snapshotTypeEQ", snapshotType.ordinal());
}
} else if (intervalTypeStr != null && volumeId != null) {
Type type = SnapshotVO.getSnapshotType(intervalTypeStr);
if (type == null) {
throw new InvalidParameterValueException("Unsupported snapstho interval type " + intervalTypeStr);
}
sc.setParameters("snapshotTypeEQ", type.ordinal());
} else {
// Show only MANUAL and RECURRING snapshot types
sc.setParameters("snapshotTypeNEQ", Snapshot.Type.TEMPLATE.ordinal());
}
Pair<List<SnapshotVO>, Integer> result = _snapshotDao.searchAndCount(sc, searchFilter);
return new Pair<List<? extends Snapshot>, Integer>(result.first(), result.second());
}
@Override
public boolean deleteSnapshotDirsForAccount(long accountId) {
List<VolumeVO> volumes = _volsDao.findByAccount(accountId);
// The above call will list only non-destroyed volumes.
// So call this method before marking the volumes as destroyed.
// i.e Call them before the VMs for those volumes are destroyed.
boolean success = true;
for (VolumeVO volume : volumes) {
if (volume.getPoolId() == null) {
continue;
}
Long volumeId = volume.getId();
Long dcId = volume.getDataCenterId();
if (_snapshotDao.listByVolumeIdIncludingRemoved(volumeId).isEmpty()) {
// This volume doesn't have any snapshots. Nothing do delete.
continue;
}
List<DataStore> ssHosts = dataStoreMgr.getImageStoresByScope(new ZoneScope(dcId));
for (DataStore ssHost : ssHosts) {
String snapshotDir = TemplateConstants.DEFAULT_SNAPSHOT_ROOT_DIR + "/" + accountId + "/" + volumeId;
DeleteSnapshotsDirCommand cmd = new DeleteSnapshotsDirCommand(ssHost.getTO(), snapshotDir);
EndPoint ep = _epSelector.select(ssHost);
Answer answer = ep.sendMessage(cmd);
if ((answer != null) && answer.getResult()) {
s_logger.debug("Deleted all snapshots for volume: " + volumeId + " under account: " + accountId);
} else {
success = false;
if (answer != null) {
s_logger.warn("Failed to delete all snapshot for volume " + volumeId + " on secondary storage " + ssHost.getUri());
s_logger.error(answer.getDetails());
}
}
}
// Either way delete the snapshots for this volume.
List<SnapshotVO> snapshots = listSnapsforVolume(volumeId);
for (SnapshotVO snapshot : snapshots) {
SnapshotStrategy snapshotStrategy = _storageStrategyFactory.getSnapshotStrategy(snapshot, SnapshotOperation.DELETE);
if (snapshotStrategy == null) {
s_logger.error("Unable to find snaphot strategy to handle snapshot with id '"+snapshot.getId()+"'");
continue;
}
if (snapshotStrategy.deleteSnapshot(snapshot.getId())) {
if (snapshot.getRecurringType() == Type.MANUAL) {
_resourceLimitMgr.decrementResourceCount(accountId, ResourceType.snapshot);
_resourceLimitMgr.decrementResourceCount(accountId, ResourceType.secondary_storage,
new Long(snapshot.getSize()));
}
// Log event after successful deletion
UsageEventUtils.publishUsageEvent(EventTypes.EVENT_SNAPSHOT_DELETE, snapshot.getAccountId(),
volume.getDataCenterId(), snapshot.getId(), snapshot.getName(), null, null,
volume.getSize(), snapshot.getClass().getName(), snapshot.getUuid());
}
}
}
// Returns true if snapshotsDir has been deleted for all volumes.
return success;
}
@Override
@DB
public SnapshotPolicyVO createPolicy(CreateSnapshotPolicyCmd cmd, Account policyOwner) {
Long volumeId = cmd.getVolumeId();
VolumeVO volume = _volsDao.findById(cmd.getVolumeId());
if (volume == null) {
throw new InvalidParameterValueException("Failed to create snapshot policy, unable to find a volume with id " + volumeId);
}
_accountMgr.checkAccess(CallContext.current().getCallingAccount(), null, true, volume);
if (volume.getState() != Volume.State.Ready) {
throw new InvalidParameterValueException("VolumeId: " + volumeId + " is not in " + Volume.State.Ready + " state but " + volume.getState() + ". Cannot take snapshot.");
}
if (volume.getTemplateId() != null ) {
VMTemplateVO template = _templateDao.findById(volume.getTemplateId());
if( template != null && template.getTemplateType() == Storage.TemplateType.SYSTEM ) {
throw new InvalidParameterValueException("VolumeId: " + volumeId + " is for System VM , Creating snapshot against System VM volumes is not supported");
}
}
AccountVO owner = _accountDao.findById(volume.getAccountId());
Long instanceId = volume.getInstanceId();
if (instanceId != null) {
// It is not detached, but attached to a VM
if (_vmDao.findById(instanceId) == null) {
// It is not a UserVM but a SystemVM or DomR
throw new InvalidParameterValueException("Failed to create snapshot policy, snapshots of volumes attached to System or router VM are not allowed");
}
}
IntervalType intvType = DateUtil.IntervalType.getIntervalType(cmd.getIntervalType());
if (intvType == null) {
throw new InvalidParameterValueException("Unsupported interval type " + cmd.getIntervalType());
}
Type type = getSnapshotType(intvType);
TimeZone timeZone = TimeZone.getTimeZone(cmd.getTimezone());
String timezoneId = timeZone.getID();
if (!timezoneId.equals(cmd.getTimezone())) {
s_logger.warn("Using timezone: " + timezoneId + " for running this snapshot policy as an equivalent of " + cmd.getTimezone());
}
try {
DateUtil.getNextRunTime(intvType, cmd.getSchedule(), timezoneId, null);
} catch (Exception e) {
throw new InvalidParameterValueException("Invalid schedule: " + cmd.getSchedule() + " for interval type: " + cmd.getIntervalType());
}
if (cmd.getMaxSnaps() <= 0) {
throw new InvalidParameterValueException("maxSnaps should be greater than 0");
}
int intervalMaxSnaps = type.getMax();
if (cmd.getMaxSnaps() > intervalMaxSnaps) {
throw new InvalidParameterValueException("maxSnaps exceeds limit: " + intervalMaxSnaps + " for interval type: " + cmd.getIntervalType());
}
// Verify that max doesn't exceed domain and account snapshot limits
long accountLimit = _resourceLimitMgr.findCorrectResourceLimitForAccount(owner, ResourceType.snapshot);
long domainLimit = _resourceLimitMgr.findCorrectResourceLimitForDomain(_domainMgr.getDomain(owner.getDomainId()), ResourceType.snapshot);
int max = cmd.getMaxSnaps().intValue();
if (owner.getType() != Account.ACCOUNT_TYPE_ADMIN && ((accountLimit != -1 && max > accountLimit) || (domainLimit != -1 && max > domainLimit))) {
String message = "domain/account";
if (owner.getType() == Account.ACCOUNT_TYPE_PROJECT) {
message = "domain/project";
}
throw new InvalidParameterValueException("Max number of snapshots shouldn't exceed the " + message + " level snapshot limit");
}
SnapshotPolicyVO policy = _snapshotPolicyDao.findOneByVolumeInterval(volumeId, intvType);
if (policy == null) {
policy = new SnapshotPolicyVO(volumeId, cmd.getSchedule(), timezoneId, intvType, cmd.getMaxSnaps());
policy = _snapshotPolicyDao.persist(policy);
_snapSchedMgr.scheduleNextSnapshotJob(policy);
} else {
try {
policy = _snapshotPolicyDao.acquireInLockTable(policy.getId());
policy.setSchedule(cmd.getSchedule());
policy.setTimezone(timezoneId);
policy.setInterval((short) intvType.ordinal());
policy.setMaxSnaps(cmd.getMaxSnaps());
policy.setActive(true);
_snapshotPolicyDao.update(policy.getId(), policy);
} finally {
if (policy != null) {
_snapshotPolicyDao.releaseFromLockTable(policy.getId());
}
}
}
return policy;
}
protected boolean deletePolicy(long userId, Long policyId) {
SnapshotPolicyVO snapshotPolicy = _snapshotPolicyDao.findById(policyId);
_snapSchedMgr.removeSchedule(snapshotPolicy.getVolumeId(), snapshotPolicy.getId());
return _snapshotPolicyDao.remove(policyId);
}
@Override
public Pair<List<? extends SnapshotPolicy>, Integer> listPoliciesforVolume(ListSnapshotPoliciesCmd cmd) {
Long volumeId = cmd.getVolumeId();
VolumeVO volume = _volsDao.findById(volumeId);
if (volume == null) {
throw new InvalidParameterValueException("Unable to find a volume with id " + volumeId);
}
_accountMgr.checkAccess(CallContext.current().getCallingAccount(), null, true, volume);
Pair<List<SnapshotPolicyVO>, Integer> result = _snapshotPolicyDao.listAndCountByVolumeId(volumeId);
return new Pair<List<? extends SnapshotPolicy>, Integer>(result.first(), result.second());
}
private List<SnapshotPolicyVO> listPoliciesforVolume(long volumeId) {
return _snapshotPolicyDao.listByVolumeId(volumeId);
}
private List<SnapshotVO> listSnapsforVolume(long volumeId) {
return _snapshotDao.listByVolumeId(volumeId);
}
private List<SnapshotVO> listSnapsforVolumeType(long volumeId, Type type) {
return _snapshotDao.listByVolumeIdType(volumeId, type);
}
@Override
public void deletePoliciesForVolume(Long volumeId) {
List<SnapshotPolicyVO> policyInstances = listPoliciesforVolume(volumeId);
for (SnapshotPolicyVO policyInstance : policyInstances) {
Long policyId = policyInstance.getId();
deletePolicy(1L, policyId);
}
// We also want to delete the manual snapshots scheduled for this volume
// We can only delete the schedules in the future, not the ones which are already executing.
SnapshotScheduleVO snapshotSchedule = _snapshotScheduleDao.getCurrentSchedule(volumeId, Snapshot.MANUAL_POLICY_ID, false);
if (snapshotSchedule != null) {
_snapshotScheduleDao.expunge(snapshotSchedule.getId());
}
}
@Override
public List<SnapshotScheduleVO> findRecurringSnapshotSchedule(ListRecurringSnapshotScheduleCmd cmd) {
Long volumeId = cmd.getVolumeId();
Long policyId = cmd.getSnapshotPolicyId();
Account account = CallContext.current().getCallingAccount();
// Verify parameters
VolumeVO volume = _volsDao.findById(volumeId);
if (volume == null) {
throw new InvalidParameterValueException("Failed to list snapshot schedule, unable to find a volume with id " + volumeId);
}
if (account != null) {
long volAcctId = volume.getAccountId();
if (_accountMgr.isAdmin(account.getType())) {
Account userAccount = _accountDao.findById(Long.valueOf(volAcctId));
if (!_domainDao.isChildDomain(account.getDomainId(), userAccount.getDomainId())) {
throw new PermissionDeniedException("Unable to list snapshot schedule for volume " + volumeId + ", permission denied.");
}
} else if (account.getId() != volAcctId) {
throw new PermissionDeniedException("Unable to list snapshot schedule, account " + account.getAccountName() + " does not own volume id " + volAcctId);
}
}
// List only future schedules, not past ones.
List<SnapshotScheduleVO> snapshotSchedules = new ArrayList<SnapshotScheduleVO>();
if (policyId == null) {
List<SnapshotPolicyVO> policyInstances = listPoliciesforVolume(volumeId);
for (SnapshotPolicyVO policyInstance : policyInstances) {
SnapshotScheduleVO snapshotSchedule = _snapshotScheduleDao.getCurrentSchedule(volumeId, policyInstance.getId(), false);
snapshotSchedules.add(snapshotSchedule);
}
} else {
snapshotSchedules.add(_snapshotScheduleDao.getCurrentSchedule(volumeId, policyId, false));
}
return snapshotSchedules;
}
private Type getSnapshotType(Long policyId) {
if (policyId.equals(Snapshot.MANUAL_POLICY_ID)) {
return Type.MANUAL;
} else {
SnapshotPolicyVO spstPolicyVO = _snapshotPolicyDao.findById(policyId);
IntervalType intvType = DateUtil.getIntervalType(spstPolicyVO.getInterval());
return getSnapshotType(intvType);
}
}
private Type getSnapshotType(IntervalType intvType) {
if (intvType.equals(IntervalType.HOURLY)) {
return Type.HOURLY;
} else if (intvType.equals(IntervalType.DAILY)) {
return Type.DAILY;
} else if (intvType.equals(IntervalType.WEEKLY)) {
return Type.WEEKLY;
} else if (intvType.equals(IntervalType.MONTHLY)) {
return Type.MONTHLY;
}
return null;
}
private boolean hostSupportSnapsthotForVolume(HostVO host, VolumeInfo volume) {
if (host.getHypervisorType() != HypervisorType.KVM) {
return true;
}
//Turn off snapshot by default for KVM if the volume attached to vm that is not in the Stopped/Destroyed state,
//unless it is set in the global flag
Long vmId = volume.getInstanceId();
if (vmId != null) {
VMInstanceVO vm = _vmDao.findById(vmId);
if (vm.getState() != VirtualMachine.State.Stopped && vm.getState() != VirtualMachine.State.Destroyed) {
boolean snapshotEnabled = Boolean.parseBoolean(_configDao.getValue("kvm.snapshot.enabled"));
if (!snapshotEnabled) {
s_logger.debug("Snapshot is not supported on host " + host + " for the volume " + volume + " attached to the vm " + vm);
return false;
}
}
}
// Determine host capabilities
String caps = host.getCapabilities();
if (caps != null) {
String[] tokens = caps.split(",");
for (String token : tokens) {
if (token.contains("snapshot")) {
return true;
}
}
}
return false;
}
private boolean supportedByHypervisor(VolumeInfo volume) {
HypervisorType hypervisorType;
StoragePoolVO storagePool = _storagePoolDao.findById(volume.getDataStore().getId());
ScopeType scope = storagePool.getScope();
if (scope.equals(ScopeType.ZONE)) {
hypervisorType = storagePool.getHypervisor();
} else {
hypervisorType = volume.getHypervisorType();
}
if (hypervisorType.equals(HypervisorType.Ovm)) {
throw new InvalidParameterValueException("Ovm won't support taking snapshot");
}
if (hypervisorType.equals(HypervisorType.KVM)) {
List<HostVO> hosts = null;
if(scope.equals(ScopeType.CLUSTER)){
ClusterVO cluster = _clusterDao.findById(storagePool.getClusterId());
hosts = _resourceMgr.listAllHostsInCluster(cluster.getId());
} else if (scope.equals(ScopeType.ZONE)){
hosts = _resourceMgr.listAllUpAndEnabledHostsInOneZoneByHypervisor(hypervisorType, volume.getDataCenterId());
}
if (hosts != null && !hosts.isEmpty()) {
HostVO host = hosts.get(0);
if (!hostSupportSnapsthotForVolume(host, volume)) {
throw new CloudRuntimeException("KVM Snapshot is not supported: " + host.getId());
}
}
}
// if volume is attached to a vm in destroyed or expunging state; disallow
if (volume.getInstanceId() != null) {
UserVmVO userVm = _vmDao.findById(volume.getInstanceId());
if (userVm != null) {
if (userVm.getState().equals(State.Destroyed) || userVm.getState().equals(State.Expunging)) {
throw new CloudRuntimeException("Creating snapshot failed due to volume:" + volume.getId()
+ " is associated with vm:" + userVm.getInstanceName() + " is in "
+ userVm.getState().toString() + " state");
}
if (userVm.getHypervisorType() == HypervisorType.VMware
|| userVm.getHypervisorType() == HypervisorType.KVM) {
List<SnapshotVO> activeSnapshots = _snapshotDao.listByInstanceId(volume.getInstanceId(),
Snapshot.State.Creating, Snapshot.State.CreatedOnPrimary, Snapshot.State.BackingUp);
if (activeSnapshots.size() > 1) {
throw new CloudRuntimeException(
"There is other active snapshot tasks on the instance to which the volume is attached, please try again later");
}
}
List<VMSnapshotVO> activeVMSnapshots = _vmSnapshotDao.listByInstanceId(userVm.getId(),
VMSnapshot.State.Creating, VMSnapshot.State.Reverting, VMSnapshot.State.Expunging);
if (activeVMSnapshots.size() > 0) {
throw new CloudRuntimeException(
"There is other active vm snapshot tasks on the instance to which the volume is attached, please try again later");
}
}
}
return true;
}
@Override
@DB
public SnapshotInfo takeSnapshot(VolumeInfo volume) throws ResourceAllocationException {
CreateSnapshotPayload payload = (CreateSnapshotPayload)volume.getpayload();
Long snapshotId = payload.getSnapshotId();
Account snapshotOwner = payload.getAccount();
SnapshotInfo snapshot = snapshotFactory.getSnapshot(snapshotId, volume.getDataStore());
try {
SnapshotStrategy snapshotStrategy = _storageStrategyFactory.getSnapshotStrategy(snapshot, SnapshotOperation.TAKE);
if (snapshotStrategy == null) {
throw new CloudRuntimeException("Can't find snapshot strategy to deal with snapshot:" + snapshotId);
}
snapshotStrategy.takeSnapshot(snapshot);
try {
postCreateSnapshot(volume.getId(), snapshotId, payload.getSnapshotPolicyId());
UsageEventUtils.publishUsageEvent(EventTypes.EVENT_SNAPSHOT_CREATE, snapshot.getAccountId(),
snapshot.getDataCenterId(), snapshotId, snapshot.getName(), null, null,
volume.getSize(), snapshot.getClass().getName(), snapshot.getUuid());
_resourceLimitMgr.incrementResourceCount(snapshotOwner.getId(), ResourceType.snapshot);
} catch (Exception e) {
s_logger.debug("post process snapshot failed", e);
}
} catch(Exception e) {
s_logger.debug("Failed to create snapshot", e);
if (backup) {
_resourceLimitMgr.decrementResourceCount(snapshotOwner.getId(), ResourceType.secondary_storage,
new Long(volume.getSize()));
} else {
_resourceLimitMgr.decrementResourceCount(snapshotOwner.getId(), ResourceType.primary_storage,
new Long(volume.getSize()));
}
throw new CloudRuntimeException("Failed to create snapshot", e);
}
return snapshot;
}
@Override
public boolean configure(String name, Map<String, Object> params) throws ConfigurationException {
String value = _configDao.getValue(Config.BackupSnapshotWait.toString());
_backupsnapshotwait = NumbersUtil.parseInt(value, Integer.parseInt(Config.BackupSnapshotWait.getDefaultValue()));
backup = Boolean.parseBoolean(_configDao.getValue(Config.BackupSnapshotAfterTakingSnapshot.toString()));
Type.HOURLY.setMax(NumbersUtil.parseInt(_configDao.getValue("snapshot.max.hourly"), HOURLYMAX));
Type.DAILY.setMax(NumbersUtil.parseInt(_configDao.getValue("snapshot.max.daily"), DAILYMAX));
Type.WEEKLY.setMax(NumbersUtil.parseInt(_configDao.getValue("snapshot.max.weekly"), WEEKLYMAX));
Type.MONTHLY.setMax(NumbersUtil.parseInt(_configDao.getValue("snapshot.max.monthly"), MONTHLYMAX));
_totalRetries = NumbersUtil.parseInt(_configDao.getValue("total.retries"), 4);
_pauseInterval = 2 * NumbersUtil.parseInt(_configDao.getValue("ping.interval"), 60);
s_logger.info("Snapshot Manager is configured.");
return true;
}
@Override
public boolean start() {
return true;
}
@Override
public boolean stop() {
return true;
}
@Override
public boolean deleteSnapshotPolicies(DeleteSnapshotPoliciesCmd cmd) {
Long policyId = cmd.getId();
List<Long> policyIds = cmd.getIds();
Long userId = getSnapshotUserId();
if ((policyId == null) && (policyIds == null)) {
throw new InvalidParameterValueException("No policy id (or list of ids) specified.");
}
if (policyIds == null) {
policyIds = new ArrayList<Long>();
policyIds.add(policyId);
} else if (policyIds.size() <= 0) {
// Not even sure how this is even possible
throw new InvalidParameterValueException("There are no policy ids");
}
for (Long policy : policyIds) {
SnapshotPolicyVO snapshotPolicyVO = _snapshotPolicyDao.findById(policy);
if (snapshotPolicyVO == null) {
throw new InvalidParameterValueException("Policy id given: " + policy + " does not exist");
}
VolumeVO volume = _volsDao.findById(snapshotPolicyVO.getVolumeId());
if (volume == null) {
throw new InvalidParameterValueException("Policy id given: " + policy + " does not belong to a valid volume");
}
_accountMgr.checkAccess(CallContext.current().getCallingAccount(), null, true, volume);
}
boolean success = true;
if (policyIds.contains(Snapshot.MANUAL_POLICY_ID)) {
throw new InvalidParameterValueException("Invalid Policy id given: " + Snapshot.MANUAL_POLICY_ID);
}
for (Long pId : policyIds) {
if (!deletePolicy(userId, pId)) {
success = false;
s_logger.warn("Failed to delete snapshot policy with Id: " + policyId);
return success;
}
}
return success;
}
@Override
public boolean canOperateOnVolume(Volume volume) {
List<SnapshotVO> snapshots = _snapshotDao.listByStatus(volume.getId(), Snapshot.State.Creating,
Snapshot.State.CreatedOnPrimary, Snapshot.State.BackingUp);
if (snapshots.size() > 0) {
return false;
}
return true;
}
@Override
public Snapshot allocSnapshot(Long volumeId, Long policyId) throws ResourceAllocationException {
Account caller = CallContext.current().getCallingAccount();
VolumeInfo volume = volFactory.getVolume(volumeId);
supportedByHypervisor(volume);
// Verify permissions
_accountMgr.checkAccess(caller, null, true, volume);
Type snapshotType = getSnapshotType(policyId);
Account owner = _accountMgr.getAccount(volume.getAccountId());
try{
_resourceLimitMgr.checkResourceLimit(owner, ResourceType.snapshot);
if (backup) {
_resourceLimitMgr.checkResourceLimit(owner, ResourceType.secondary_storage, new Long(volume.getSize()));
} else {
_resourceLimitMgr.checkResourceLimit(owner, ResourceType.primary_storage, new Long(volume.getSize()));
}
} catch (ResourceAllocationException e) {
if (snapshotType != Type.MANUAL){
String msg = "Snapshot resource limit exceeded for account id : " + owner.getId() + ". Failed to create recurring snapshots";
s_logger.warn(msg);
_alertMgr.sendAlert(AlertManager.ALERT_TYPE_UPDATE_RESOURCE_COUNT, 0L, 0L, msg,
"Snapshot resource limit exceeded for account id : " + owner.getId() + ". Failed to create recurring snapshots; please use updateResourceLimit to increase the limit");
}
throw e;
}
// Determine the name for this snapshot
// Snapshot Name: VMInstancename + volumeName + timeString
String timeString = DateUtil.getDateDisplayString(DateUtil.GMT_TIMEZONE, new Date(), DateUtil.YYYYMMDD_FORMAT);
VMInstanceVO vmInstance = _vmDao.findById(volume.getInstanceId());
String vmDisplayName = "detached";
if (vmInstance != null) {
vmDisplayName = vmInstance.getHostName();
}
String snapshotName = vmDisplayName + "_" + volume.getName() + "_" + timeString;
HypervisorType hypervisorType = HypervisorType.None;
StoragePoolVO storagePool = _storagePoolDao.findById(volume.getDataStore().getId());
if (storagePool.getScope() == ScopeType.ZONE) {
hypervisorType = storagePool.getHypervisor();
} else {
hypervisorType = volume.getHypervisorType();
}
SnapshotVO snapshotVO = new SnapshotVO(volume.getDataCenterId(), volume.getAccountId(), volume.getDomainId(), volume.getId(), volume.getDiskOfferingId(), snapshotName,
(short) snapshotType.ordinal(), snapshotType.name(), volume.getSize(), hypervisorType);
SnapshotVO snapshot = _snapshotDao.persist(snapshotVO);
if (snapshot == null) {
throw new CloudRuntimeException("Failed to create snapshot for volume: " + volume.getId());
}
if (backup) {
_resourceLimitMgr.incrementResourceCount(volume.getAccountId(), ResourceType.secondary_storage,
new Long(volume.getSize()));
} else {
_resourceLimitMgr.incrementResourceCount(volume.getAccountId(), ResourceType.primary_storage,
new Long(volume.getSize()));
}
return snapshot;
}
}
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