// This routine is used to push templates currently on cache store, but not in region store to
// region store.
// used in migrating existing NFS secondary storage to S3.
@Override
public void syncTemplateToRegionStore(long templateId, DataStore store) {
if (_storeMgr.isRegionStore(store)) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Sync template " + templateId + " from cache to object store...");
}
// if template is on region wide object store, check if it is really downloaded there (by
// checking install_path). Sync template to region
// wide store if it is not there physically.
TemplateInfo tmplOnStore = _templateFactory.getTemplate(templateId, store);
if (tmplOnStore == null) {
throw new CloudRuntimeException(
"Cannot find an entry in template_store_ref for template "
+ templateId
+ " on region store: "
+ store.getName());
}
if (tmplOnStore.getInstallPath() == null || tmplOnStore.getInstallPath().length() == 0) {
// template is not on region store yet, sync to region store
TemplateInfo srcTemplate = _templateFactory.getReadyTemplateOnCache(templateId);
if (srcTemplate == null) {
throw new CloudRuntimeException(
"Cannot find template " + templateId + " on cache store");
}
AsyncCallFuture<TemplateApiResult> future = syncToRegionStoreAsync(srcTemplate, store);
try {
TemplateApiResult result = future.get();
if (result.isFailed()) {
throw new CloudRuntimeException(
"sync template from cache to region wide store failed for image store "
+ store.getName()
+ ":"
+ result.getResult());
}
_cacheMgr.releaseCacheObject(
srcTemplate); // reduce reference count for template on cache, so it can recycled by
// schedule
} catch (Exception ex) {
throw new CloudRuntimeException(
"sync template from cache to region wide store failed for image store "
+ store.getName());
}
}
}
}
@Override
public AsyncCallFuture<TemplateApiResult> copyTemplate(
TemplateInfo srcTemplate, DataStore destStore) {
// generate a URL from source template ssvm to download to destination data store
String url = generateCopyUrl(srcTemplate);
if (url == null) {
s_logger.warn(
"Unable to start/resume copy of template "
+ srcTemplate.getUniqueName()
+ " to "
+ destStore.getName()
+ ", no secondary storage vm in running state in source zone");
throw new CloudRuntimeException("No secondary VM in running state in source template zone ");
}
TemplateObject tmplForCopy =
(TemplateObject) _templateFactory.getTemplate(srcTemplate, destStore);
if (s_logger.isDebugEnabled()) {
s_logger.debug("Setting source template url to " + url);
}
tmplForCopy.setUrl(url);
if (s_logger.isDebugEnabled()) {
s_logger.debug("Mark template_store_ref entry as Creating");
}
AsyncCallFuture<TemplateApiResult> future = new AsyncCallFuture<TemplateApiResult>();
DataObject templateOnStore = destStore.create(tmplForCopy);
templateOnStore.processEvent(Event.CreateOnlyRequested);
if (s_logger.isDebugEnabled()) {
s_logger.debug("Invoke datastore driver createAsync to create template on destination store");
}
try {
TemplateOpContext<TemplateApiResult> context =
new TemplateOpContext<TemplateApiResult>(null, (TemplateObject) templateOnStore, future);
AsyncCallbackDispatcher<TemplateServiceImpl, CreateCmdResult> caller =
AsyncCallbackDispatcher.create(this);
caller
.setCallback(caller.getTarget().copyTemplateCrossZoneCallBack(null, null))
.setContext(context);
destStore.getDriver().createAsync(destStore, templateOnStore, caller);
} catch (CloudRuntimeException ex) {
// clean up already persisted template_store_ref entry in case of createTemplateCallback is
// never called
TemplateDataStoreVO templateStoreVO =
_vmTemplateStoreDao.findByStoreTemplate(destStore.getId(), srcTemplate.getId());
if (templateStoreVO != null) {
TemplateInfo tmplObj = _templateFactory.getTemplate(srcTemplate, destStore);
tmplObj.processEvent(ObjectInDataStoreStateMachine.Event.OperationFailed);
}
TemplateApiResult res = new TemplateApiResult((TemplateObject) templateOnStore);
res.setResult(ex.getMessage());
future.complete(res);
}
return future;
}
@Override
protected void runInContext() {
// 1. Select all entries with download_state = Not_Downloaded or Download_In_Progress
// 2. Get corresponding volume
// 3. Get EP using _epSelector
// 4. Check if SSVM is owned by this MS
// 5. If owned by MS then send command to appropriate SSVM
// 6. In listener check for the answer and update DB accordingly
List<VolumeDataStoreVO> volumeDataStores =
_volumeDataStoreDao.listByVolumeState(
Volume.State.NotUploaded, Volume.State.UploadInProgress);
for (VolumeDataStoreVO volumeDataStore : volumeDataStores) {
try {
DataStore dataStore =
storeMgr.getDataStore(volumeDataStore.getDataStoreId(), DataStoreRole.Image);
EndPoint ep = _epSelector.select(dataStore, volumeDataStore.getExtractUrl());
if (ep == null) {
s_logger.warn(
"There is no secondary storage VM for image store " + dataStore.getName());
continue;
}
VolumeVO volume = _volumeDao.findById(volumeDataStore.getVolumeId());
if (volume == null) {
s_logger.warn("Volume with id " + volumeDataStore.getVolumeId() + " not found");
continue;
}
Host host = _hostDao.findById(ep.getId());
UploadStatusCommand cmd = new UploadStatusCommand(volume.getUuid(), EntityType.Volume);
if (host != null && host.getManagementServerId() != null) {
if (_nodeId == host.getManagementServerId().longValue()) {
Answer answer = null;
try {
answer = ep.sendMessage(cmd);
} catch (CloudRuntimeException e) {
s_logger.warn(
"Unable to get upload status for volume "
+ volume.getUuid()
+ ". Error details: "
+ e.getMessage());
answer = new UploadStatusAnswer(cmd, UploadStatus.UNKNOWN, e.getMessage());
}
if (answer == null || !(answer instanceof UploadStatusAnswer)) {
s_logger.warn(
"No or invalid answer corresponding to UploadStatusCommand for volume "
+ volumeDataStore.getVolumeId());
continue;
}
handleVolumeStatusResponse((UploadStatusAnswer) answer, volume, volumeDataStore);
}
} else {
String error =
"Volume "
+ volume.getUuid()
+ " failed to upload as SSVM is either destroyed or SSVM agent not in 'Up' state";
handleVolumeStatusResponse(
new UploadStatusAnswer(cmd, UploadStatus.ERROR, error), volume, volumeDataStore);
}
} catch (Throwable th) {
s_logger.warn(
"Exception while checking status for uploaded volume "
+ volumeDataStore.getExtractUrl()
+ ". Error details: "
+ th.getMessage());
if (s_logger.isTraceEnabled()) {
s_logger.trace("Exception details: ", th);
}
}
}
// Handle for template upload as well
List<TemplateDataStoreVO> templateDataStores =
_templateDataStoreDao.listByTemplateState(
VirtualMachineTemplate.State.NotUploaded,
VirtualMachineTemplate.State.UploadInProgress);
for (TemplateDataStoreVO templateDataStore : templateDataStores) {
try {
DataStore dataStore =
storeMgr.getDataStore(templateDataStore.getDataStoreId(), DataStoreRole.Image);
EndPoint ep = _epSelector.select(dataStore, templateDataStore.getExtractUrl());
if (ep == null) {
s_logger.warn(
"There is no secondary storage VM for image store " + dataStore.getName());
continue;
}
VMTemplateVO template = _templateDao.findById(templateDataStore.getTemplateId());
if (template == null) {
s_logger.warn("Template with id " + templateDataStore.getTemplateId() + " not found");
continue;
}
Host host = _hostDao.findById(ep.getId());
UploadStatusCommand cmd =
new UploadStatusCommand(template.getUuid(), EntityType.Template);
if (host != null && host.getManagementServerId() != null) {
if (_nodeId == host.getManagementServerId().longValue()) {
Answer answer = null;
try {
answer = ep.sendMessage(cmd);
} catch (CloudRuntimeException e) {
s_logger.warn(
"Unable to get upload status for template "
+ template.getUuid()
+ ". Error details: "
+ e.getMessage());
answer = new UploadStatusAnswer(cmd, UploadStatus.UNKNOWN, e.getMessage());
}
if (answer == null || !(answer instanceof UploadStatusAnswer)) {
s_logger.warn(
"No or invalid answer corresponding to UploadStatusCommand for template "
+ templateDataStore.getTemplateId());
continue;
}
handleTemplateStatusResponse(
(UploadStatusAnswer) answer, template, templateDataStore);
}
} else {
String error =
"Template "
+ template.getUuid()
+ " failed to upload as SSVM is either destroyed or SSVM agent not in 'Up' state";
handleTemplateStatusResponse(
new UploadStatusAnswer(cmd, UploadStatus.ERROR, error),
template,
templateDataStore);
}
} catch (Throwable th) {
s_logger.warn(
"Exception while checking status for uploaded template "
+ templateDataStore.getExtractUrl()
+ ". Error details: "
+ th.getMessage());
if (s_logger.isTraceEnabled()) {
s_logger.trace("Exception details: ", th);
}
}
}
}
@Override
public void downloadVolumeToStorage(
DataObject volume, AsyncCompletionCallback<DownloadAnswer> callback) {
boolean downloadJobExists = false;
VolumeDataStoreVO volumeHost = null;
DataStore store = volume.getDataStore();
VolumeInfo volInfo = (VolumeInfo) volume;
RegisterVolumePayload payload = (RegisterVolumePayload) volInfo.getpayload();
String url = payload.getUrl();
String checkSum = payload.getChecksum();
ImageFormat format = ImageFormat.valueOf(payload.getFormat());
volumeHost = _volumeStoreDao.findByStoreVolume(store.getId(), volume.getId());
if (volumeHost == null) {
volumeHost =
new VolumeDataStoreVO(
store.getId(),
volume.getId(),
new Date(),
0,
Status.NOT_DOWNLOADED,
null,
null,
"jobid0000",
null,
url,
checkSum);
_volumeStoreDao.persist(volumeHost);
} else if ((volumeHost.getJobId() != null) && (volumeHost.getJobId().length() > 2)) {
downloadJobExists = true;
}
Long maxVolumeSizeInBytes = getMaxVolumeSizeInBytes();
if (volumeHost != null) {
start();
Volume vol = _volumeDao.findById(volume.getId());
DownloadCommand dcmd =
new DownloadCommand(
(VolumeObjectTO) (volume.getTO()), maxVolumeSizeInBytes, checkSum, url, format);
dcmd.setProxy(getHttpProxy());
if (downloadJobExists) {
dcmd = new DownloadProgressCommand(dcmd, volumeHost.getJobId(), RequestType.GET_OR_RESTART);
dcmd.setResourceType(ResourceType.VOLUME);
}
EndPoint ep = _epSelector.select(volume);
if (ep == null) {
s_logger.warn("There is no secondary storage VM for image store " + store.getName());
return;
}
DownloadListener dl = new DownloadListener(ep, store, volume, _timer, this, dcmd, callback);
ComponentContext.inject(dl); // auto-wired those injected fields in DownloadListener
if (downloadJobExists) {
dl.setCurrState(volumeHost.getDownloadState());
}
try {
ep.sendMessageAsync(dcmd, new UploadListener.Callback(ep.getId(), dl));
} catch (Exception e) {
s_logger.warn(
"Unable to start /resume download of volume "
+ volume.getId()
+ " to "
+ store.getName(),
e);
dl.setDisconnected();
dl.scheduleStatusCheck(RequestType.GET_OR_RESTART);
}
}
}
private void initiateTemplateDownload(
DataObject template, AsyncCompletionCallback<DownloadAnswer> callback) {
boolean downloadJobExists = false;
TemplateDataStoreVO vmTemplateStore = null;
DataStore store = template.getDataStore();
vmTemplateStore = _vmTemplateStoreDao.findByStoreTemplate(store.getId(), template.getId());
if (vmTemplateStore == null) {
vmTemplateStore =
new TemplateDataStoreVO(
store.getId(),
template.getId(),
new Date(),
0,
Status.NOT_DOWNLOADED,
null,
null,
"jobid0000",
null,
template.getUri());
vmTemplateStore.setDataStoreRole(store.getRole());
vmTemplateStore = _vmTemplateStoreDao.persist(vmTemplateStore);
} else if ((vmTemplateStore.getJobId() != null) && (vmTemplateStore.getJobId().length() > 2)) {
downloadJobExists = true;
}
Long maxTemplateSizeInBytes = getMaxTemplateSizeInBytes();
if (vmTemplateStore != null) {
start();
VirtualMachineTemplate tmpl = _templateDao.findById(template.getId());
DownloadCommand dcmd =
new DownloadCommand((TemplateObjectTO) (template.getTO()), maxTemplateSizeInBytes);
dcmd.setProxy(getHttpProxy());
if (downloadJobExists) {
dcmd =
new DownloadProgressCommand(
dcmd, vmTemplateStore.getJobId(), RequestType.GET_OR_RESTART);
}
if (vmTemplateStore.isCopy()) {
dcmd.setCreds(TemplateConstants.DEFAULT_HTTP_AUTH_USER, _copyAuthPasswd);
}
EndPoint ep = _epSelector.select(template);
if (ep == null) {
String errMsg =
"There is no secondary storage VM for downloading template to image store "
+ store.getName();
s_logger.warn(errMsg);
throw new CloudRuntimeException(errMsg);
}
DownloadListener dl = new DownloadListener(ep, store, template, _timer, this, dcmd, callback);
ComponentContext.inject(dl); // initialize those auto-wired field in download listener.
if (downloadJobExists) {
// due to handling existing download job issues, we still keep
// downloadState in template_store_ref to avoid big change in
// DownloadListener to use
// new ObjectInDataStore.State transition. TODO: fix this later
// to be able to remove downloadState from template_store_ref.
s_logger.info("found existing download job");
dl.setCurrState(vmTemplateStore.getDownloadState());
}
try {
ep.sendMessageAsync(dcmd, new UploadListener.Callback(ep.getId(), dl));
} catch (Exception e) {
s_logger.warn(
"Unable to start /resume download of template "
+ template.getId()
+ " to "
+ store.getName(),
e);
dl.setDisconnected();
dl.scheduleStatusCheck(RequestType.GET_OR_RESTART);
}
}
}
@Override
public void handleTemplateSync(DataStore store) {
if (store == null) {
s_logger.warn("Huh? image store is null");
return;
}
long storeId = store.getId();
// add lock to make template sync for a data store only be done once
String lockString = "templatesync.storeId:" + storeId;
GlobalLock syncLock = GlobalLock.getInternLock(lockString);
try {
if (syncLock.lock(3)) {
try {
Long zoneId = store.getScope().getScopeId();
Map<String, TemplateProp> templateInfos = listTemplate(store);
if (templateInfos == null) {
return;
}
Set<VMTemplateVO> toBeDownloaded = new HashSet<VMTemplateVO>();
List<VMTemplateVO> allTemplates = null;
if (zoneId == null) {
// region wide store
allTemplates = _templateDao.listAllActive();
} else {
// zone wide store
allTemplates = _templateDao.listAllInZone(zoneId);
}
List<VMTemplateVO> rtngTmplts = _templateDao.listAllSystemVMTemplates();
List<VMTemplateVO> defaultBuiltin = _templateDao.listDefaultBuiltinTemplates();
if (rtngTmplts != null) {
for (VMTemplateVO rtngTmplt : rtngTmplts) {
if (!allTemplates.contains(rtngTmplt)) {
allTemplates.add(rtngTmplt);
}
}
}
if (defaultBuiltin != null) {
for (VMTemplateVO builtinTmplt : defaultBuiltin) {
if (!allTemplates.contains(builtinTmplt)) {
allTemplates.add(builtinTmplt);
}
}
}
toBeDownloaded.addAll(allTemplates);
for (VMTemplateVO tmplt : allTemplates) {
String uniqueName = tmplt.getUniqueName();
TemplateDataStoreVO tmpltStore =
_vmTemplateStoreDao.findByStoreTemplate(storeId, tmplt.getId());
if (templateInfos.containsKey(uniqueName)) {
TemplateProp tmpltInfo = templateInfos.remove(uniqueName);
toBeDownloaded.remove(tmplt);
if (tmpltStore != null) {
s_logger.info("Template Sync found " + uniqueName + " already in the image store");
if (tmpltStore.getDownloadState() != Status.DOWNLOADED) {
tmpltStore.setErrorString("");
}
if (tmpltInfo.isCorrupted()) {
tmpltStore.setDownloadState(Status.DOWNLOAD_ERROR);
String msg =
"Template "
+ tmplt.getName()
+ ":"
+ tmplt.getId()
+ " is corrupted on secondary storage "
+ tmpltStore.getId();
tmpltStore.setErrorString(msg);
s_logger.info("msg");
if (tmplt.getUrl() == null) {
msg =
"Private Template ("
+ tmplt
+ ") with install path "
+ tmpltInfo.getInstallPath()
+ "is corrupted, please check in image store: "
+ tmpltStore.getDataStoreId();
s_logger.warn(msg);
} else {
s_logger.info(
"Removing template_store_ref entry for corrupted template "
+ tmplt.getName());
_vmTemplateStoreDao.remove(tmpltStore.getId());
toBeDownloaded.add(tmplt);
}
} else {
tmpltStore.setDownloadPercent(100);
tmpltStore.setDownloadState(Status.DOWNLOADED);
tmpltStore.setState(ObjectInDataStoreStateMachine.State.Ready);
tmpltStore.setInstallPath(tmpltInfo.getInstallPath());
tmpltStore.setSize(tmpltInfo.getSize());
tmpltStore.setPhysicalSize(tmpltInfo.getPhysicalSize());
tmpltStore.setLastUpdated(new Date());
// update size in vm_template table
VMTemplateVO tmlpt = _templateDao.findById(tmplt.getId());
tmlpt.setSize(tmpltInfo.getSize());
_templateDao.update(tmplt.getId(), tmlpt);
// Skipping limit checks for SYSTEM Account and for the templates created from
// volumes or snapshots
// which already got checked and incremented during createTemplate API call.
if (tmpltInfo.getSize() > 0
&& tmplt.getAccountId() != Account.ACCOUNT_ID_SYSTEM
&& tmplt.getUrl() != null) {
long accountId = tmplt.getAccountId();
try {
_resourceLimitMgr.checkResourceLimit(
_accountMgr.getAccount(accountId),
com.cloud.configuration.Resource.ResourceType.secondary_storage,
tmpltInfo.getSize() - UriUtils.getRemoteSize(tmplt.getUrl()));
} catch (ResourceAllocationException e) {
s_logger.warn(e.getMessage());
_alertMgr.sendAlert(
AlertManager.AlertType.ALERT_TYPE_RESOURCE_LIMIT_EXCEEDED,
zoneId,
null,
e.getMessage(),
e.getMessage());
} finally {
_resourceLimitMgr.recalculateResourceCount(
accountId,
_accountMgr.getAccount(accountId).getDomainId(),
com.cloud.configuration.Resource.ResourceType.secondary_storage
.getOrdinal());
}
}
}
_vmTemplateStoreDao.update(tmpltStore.getId(), tmpltStore);
} else {
tmpltStore =
new TemplateDataStoreVO(
storeId,
tmplt.getId(),
new Date(),
100,
Status.DOWNLOADED,
null,
null,
null,
tmpltInfo.getInstallPath(),
tmplt.getUrl());
tmpltStore.setSize(tmpltInfo.getSize());
tmpltStore.setPhysicalSize(tmpltInfo.getPhysicalSize());
tmpltStore.setDataStoreRole(store.getRole());
_vmTemplateStoreDao.persist(tmpltStore);
// update size in vm_template table
VMTemplateVO tmlpt = _templateDao.findById(tmplt.getId());
tmlpt.setSize(tmpltInfo.getSize());
_templateDao.update(tmplt.getId(), tmlpt);
associateTemplateToZone(tmplt.getId(), zoneId);
}
} else {
s_logger.info(
"Template Sync did not find "
+ uniqueName
+ " on image store "
+ storeId
+ ", may request download based on available hypervisor types");
if (tmpltStore != null) {
if (isRegionStore(store)
&& tmpltStore.getDownloadState()
== VMTemplateStorageResourceAssoc.Status.DOWNLOADED
&& tmpltStore.getState() == State.Ready
&& tmpltStore.getInstallPath() == null) {
s_logger.info(
"Keep fake entry in template store table for migration of previous NFS to object store");
} else {
s_logger.info(
"Removing leftover template "
+ uniqueName
+ " entry from template store table");
// remove those leftover entries
_vmTemplateStoreDao.remove(tmpltStore.getId());
}
}
}
}
if (toBeDownloaded.size() > 0) {
/* Only download templates whose hypervirsor type is in the zone */
List<HypervisorType> availHypers = _clusterDao.getAvailableHypervisorInZone(zoneId);
if (availHypers.isEmpty()) {
/*
* This is for cloudzone, local secondary storage resource
* started before cluster created
*/
availHypers.add(HypervisorType.KVM);
}
/* Baremetal need not to download any template */
availHypers.remove(HypervisorType.BareMetal);
availHypers.add(HypervisorType.None); // bug 9809: resume ISO
// download.
for (VMTemplateVO tmplt : toBeDownloaded) {
if (tmplt.getUrl() == null) { // If url is null we can't
s_logger.info(
"Skip downloading template "
+ tmplt.getUniqueName()
+ " since no url is specified.");
continue;
}
// if this is private template, skip sync to a new image store
if (!tmplt.isPublicTemplate()
&& !tmplt.isFeatured()
&& tmplt.getTemplateType() != TemplateType.SYSTEM) {
s_logger.info(
"Skip sync downloading private template "
+ tmplt.getUniqueName()
+ " to a new image store");
continue;
}
// if this is a region store, and there is already an DOWNLOADED entry there without
// install_path information, which
// means that this is a duplicate entry from migration of previous NFS to staging.
if (isRegionStore(store)) {
TemplateDataStoreVO tmpltStore =
_vmTemplateStoreDao.findByStoreTemplate(storeId, tmplt.getId());
if (tmpltStore != null
&& tmpltStore.getDownloadState()
== VMTemplateStorageResourceAssoc.Status.DOWNLOADED
&& tmpltStore.getState() == State.Ready
&& tmpltStore.getInstallPath() == null) {
s_logger.info("Skip sync template for migration of previous NFS to object store");
continue;
}
}
if (availHypers.contains(tmplt.getHypervisorType())) {
s_logger.info(
"Downloading template "
+ tmplt.getUniqueName()
+ " to image store "
+ store.getName());
associateTemplateToZone(tmplt.getId(), zoneId);
TemplateInfo tmpl =
_templateFactory.getTemplate(tmplt.getId(), DataStoreRole.Image);
createTemplateAsync(tmpl, store, null);
} else {
s_logger.info(
"Skip downloading template "
+ tmplt.getUniqueName()
+ " since current data center does not have hypervisor "
+ tmplt.getHypervisorType().toString());
}
}
}
for (String uniqueName : templateInfos.keySet()) {
TemplateProp tInfo = templateInfos.get(uniqueName);
if (_tmpltMgr.templateIsDeleteable(tInfo.getId())) {
// we cannot directly call deleteTemplateSync here to
// reuse delete logic since in this case, our db does not have
// this template at all.
TemplateObjectTO tmplTO = new TemplateObjectTO();
tmplTO.setDataStore(store.getTO());
tmplTO.setPath(tInfo.getInstallPath());
tmplTO.setId(tInfo.getId());
DeleteCommand dtCommand = new DeleteCommand(tmplTO);
EndPoint ep = _epSelector.select(store);
Answer answer = null;
if (ep == null) {
String errMsg =
"No remote endpoint to send command, check if host or ssvm is down?";
s_logger.error(errMsg);
answer = new Answer(dtCommand, false, errMsg);
} else {
answer = ep.sendMessage(dtCommand);
}
if (answer == null || !answer.getResult()) {
s_logger.info("Failed to deleted template at store: " + store.getName());
} else {
String description =
"Deleted template "
+ tInfo.getTemplateName()
+ " on secondary storage "
+ storeId;
s_logger.info(description);
}
}
}
} finally {
syncLock.unlock();
}
} else {
s_logger.info(
"Couldn't get global lock on "
+ lockString
+ ", another thread may be doing template sync on data store "
+ storeId
+ " now.");
}
} finally {
syncLock.releaseRef();
}
}
@Override
public AsyncCallFuture<TemplateApiResult> copyTemplate(
TemplateInfo srcTemplate, DataStore destStore) {
// for vmware template, we need to check if ova packing is needed, since template created from
// snapshot does not have .ova file
// we invoke createEntityExtractURL to trigger ova packing. Ideally, we can directly use
// extractURL to pass to following createTemplate.
// Need to understand what is the background to use two different urls for copy and extract.
if (srcTemplate.getFormat() == ImageFormat.OVA) {
ImageStoreEntity tmpltStore = (ImageStoreEntity) srcTemplate.getDataStore();
tmpltStore.createEntityExtractUrl(
srcTemplate.getInstallPath(), srcTemplate.getFormat(), srcTemplate);
}
// generate a URL from source template ssvm to download to destination data store
String url = generateCopyUrl(srcTemplate);
if (url == null) {
s_logger.warn(
"Unable to start/resume copy of template "
+ srcTemplate.getUniqueName()
+ " to "
+ destStore.getName()
+ ", no secondary storage vm in running state in source zone");
throw new CloudRuntimeException("No secondary VM in running state in source template zone ");
}
TemplateObject tmplForCopy =
(TemplateObject) _templateFactory.getTemplate(srcTemplate, destStore);
if (s_logger.isDebugEnabled()) {
s_logger.debug("Setting source template url to " + url);
}
tmplForCopy.setUrl(url);
if (s_logger.isDebugEnabled()) {
s_logger.debug("Mark template_store_ref entry as Creating");
}
AsyncCallFuture<TemplateApiResult> future = new AsyncCallFuture<TemplateApiResult>();
DataObject templateOnStore = destStore.create(tmplForCopy);
templateOnStore.processEvent(Event.CreateOnlyRequested);
if (s_logger.isDebugEnabled()) {
s_logger.debug("Invoke datastore driver createAsync to create template on destination store");
}
try {
TemplateOpContext<TemplateApiResult> context =
new TemplateOpContext<TemplateApiResult>(null, (TemplateObject) templateOnStore, future);
AsyncCallbackDispatcher<TemplateServiceImpl, CreateCmdResult> caller =
AsyncCallbackDispatcher.create(this);
caller
.setCallback(caller.getTarget().copyTemplateCrossZoneCallBack(null, null))
.setContext(context);
destStore.getDriver().createAsync(destStore, templateOnStore, caller);
} catch (CloudRuntimeException ex) {
// clean up already persisted template_store_ref entry in case of createTemplateCallback is
// never called
TemplateDataStoreVO templateStoreVO =
_vmTemplateStoreDao.findByStoreTemplate(destStore.getId(), srcTemplate.getId());
if (templateStoreVO != null) {
TemplateInfo tmplObj = _templateFactory.getTemplate(srcTemplate, destStore);
tmplObj.processEvent(ObjectInDataStoreStateMachine.Event.OperationFailed);
}
TemplateApiResult res = new TemplateApiResult((TemplateObject) templateOnStore);
res.setResult(ex.getMessage());
future.complete(res);
}
return future;
}