Examples with SnapshotObjectTO com.cloud.storage.to.SnapshotObjectTO used on opensource projects

Example 16 with SnapshotObjectTO

use of com.cloud.storage.to.SnapshotObjectTO in project cosmic by MissionCriticalCloud.

the class Xenserver625StorageProcessor method createTemplateFromSnapshot.

@Override
public Answer createTemplateFromSnapshot(final CopyCommand cmd) {
    final Connection conn = hypervisorResource.getConnection();
    final DataTO srcData = cmd.getSrcTO();
    final DataTO destData = cmd.getDestTO();
    if (srcData.getDataStore() instanceof PrimaryDataStoreTO && destData.getDataStore() instanceof NfsTO) {
        return createTemplateFromSnapshot2(cmd);
    }
    final int wait = cmd.getWait();
    final SnapshotObjectTO srcObj = (SnapshotObjectTO) srcData;
    final TemplateObjectTO destObj = (TemplateObjectTO) destData;
    final NfsTO srcStore = (NfsTO) srcObj.getDataStore();
    final NfsTO destStore = (NfsTO) destObj.getDataStore();
    URI srcUri = null;
    URI destUri = null;
    try {
        srcUri = new URI(srcStore.getUrl());
        destUri = new URI(destStore.getUrl());
    } catch (final Exception e) {
        s_logger.debug("incorrect url", e);
        return new CopyCmdAnswer("incorrect url" + e.toString());
    }
    final String srcPath = srcObj.getPath();
    final int index = srcPath.lastIndexOf("/");
    final String srcDir = srcPath.substring(0, index);
    final String destDir = destObj.getPath();
    SR srcSr = null;
    SR destSr = null;
    VDI destVdi = null;
    boolean result = false;
    try {
        srcSr = createFileSr(conn, srcUri.getHost() + ":" + srcUri.getPath(), srcDir);
        final String destNfsPath = destUri.getHost() + ":" + destUri.getPath();
        final String localDir = "/var/cloud_mount/" + UUID.nameUUIDFromBytes(destNfsPath.getBytes());
        mountNfs(conn, destUri.getHost() + ":" + destUri.getPath(), localDir);
        makeDirectory(conn, localDir + "/" + destDir);
        destSr = createFileSR(conn, localDir + "/" + destDir);
        final String nameLabel = "cloud-" + UUID.randomUUID().toString();
        final String[] parents = srcObj.getParents();
        final List<VDI> snapshotChains = new ArrayList<>();
        if (parents != null) {
            for (int i = 0; i < parents.length; i++) {
                final String snChainPath = parents[i];
                final String uuid = getSnapshotUuid(snChainPath);
                final VDI chain = VDI.getByUuid(conn, uuid);
                snapshotChains.add(chain);
            }
        }
        final String snapshotUuid = getSnapshotUuid(srcPath);
        final VDI snapshotVdi = VDI.getByUuid(conn, snapshotUuid);
        snapshotChains.add(snapshotVdi);
        final long templateVirtualSize = snapshotChains.get(0).getVirtualSize(conn);
        destVdi = createVdi(conn, nameLabel, destSr, templateVirtualSize);
        final String destVdiUuid = destVdi.getUuid(conn);
        for (final VDI snapChain : snapshotChains) {
            final Task task = snapChain.copyAsync(conn, null, null, destVdi);
            // poll every 1 seconds ,
            hypervisorResource.waitForTask(conn, task, 1000, wait * 1000);
            hypervisorResource.checkForSuccess(conn, task);
            task.destroy(conn);
        }
        destVdi = VDI.getByUuid(conn, destVdiUuid);
        // scan makes XenServer pick up VDI physicalSize
        destSr.scan(conn);
        final String templateUuid = destVdi.getUuid(conn);
        final String templateFilename = templateUuid + ".vhd";
        final long virtualSize = destVdi.getVirtualSize(conn);
        final long physicalSize = destVdi.getPhysicalUtilisation(conn);
        String templatePath = destNfsPath + "/" + destDir;
        templatePath = templatePath.replaceAll("//", "/");
        result = hypervisorResource.postCreatePrivateTemplate(conn, templatePath, templateFilename, templateUuid, nameLabel, null, physicalSize, virtualSize, destObj.getId());
        if (!result) {
            throw new CloudRuntimeException("Could not create the template.properties file on secondary storage dir");
        }
        final TemplateObjectTO newTemplate = new TemplateObjectTO();
        newTemplate.setPath(destDir + "/" + templateFilename);
        newTemplate.setFormat(Storage.ImageFormat.VHD);
        newTemplate.setSize(destVdi.getVirtualSize(conn));
        newTemplate.setPhysicalSize(destVdi.getPhysicalUtilisation(conn));
        newTemplate.setName(destVdiUuid);
        result = true;
        return new CopyCmdAnswer(newTemplate);
    } catch (final Exception e) {
        s_logger.error("Failed create template from snapshot", e);
        return new CopyCmdAnswer("Failed create template from snapshot " + e.toString());
    } finally {
        if (!result) {
            if (destVdi != null) {
                try {
                    destVdi.destroy(conn);
                } catch (final Exception e) {
                    s_logger.debug("Clean up left over on dest storage failed: ", e);
                }
            }
        }
        if (srcSr != null) {
            hypervisorResource.removeSR(conn, srcSr);
        }
        if (destSr != null) {
            hypervisorResource.removeSR(conn, destSr);
        }
    }
}

Example 17 with SnapshotObjectTO

use of com.cloud.storage.to.SnapshotObjectTO in project cosmic by MissionCriticalCloud.

the class XenserverSnapshotStrategy method backupSnapshot.

@Override
public SnapshotInfo backupSnapshot(final SnapshotInfo snapshot) {
    final SnapshotInfo parentSnapshot = snapshot.getParent();
    if (parentSnapshot != null && snapshot.getPath().equalsIgnoreCase(parentSnapshot.getPath())) {
        s_logger.debug("backup an empty snapshot");
        // don't need to backup this snapshot
        final SnapshotDataStoreVO parentSnapshotOnBackupStore = snapshotStoreDao.findBySnapshot(parentSnapshot.getId(), DataStoreRole.Image);
        if (parentSnapshotOnBackupStore != null && parentSnapshotOnBackupStore.getState() == State.Ready) {
            final DataStore store = dataStoreMgr.getDataStore(parentSnapshotOnBackupStore.getDataStoreId(), parentSnapshotOnBackupStore.getRole());
            final SnapshotInfo snapshotOnImageStore = (SnapshotInfo) store.create(snapshot);
            snapshotOnImageStore.processEvent(Event.CreateOnlyRequested);
            final SnapshotObjectTO snapTO = new SnapshotObjectTO();
            snapTO.setPath(parentSnapshotOnBackupStore.getInstallPath());
            final CreateObjectAnswer createSnapshotAnswer = new CreateObjectAnswer(snapTO);
            snapshotOnImageStore.processEvent(Event.OperationSuccessed, createSnapshotAnswer);
            final SnapshotObject snapObj = (SnapshotObject) snapshot;
            try {
                snapObj.processEvent(Snapshot.Event.OperationNotPerformed);
            } catch (final NoTransitionException e) {
                s_logger.debug("Failed to change state: " + snapshot.getId() + ": " + e.toString());
                throw new CloudRuntimeException(e.toString());
            }
            return snapshotDataFactory.getSnapshot(snapObj.getId(), store);
        } else {
            s_logger.debug("parent snapshot hasn't been backed up yet");
        }
    }
    // determine full snapshot backup or not
    boolean fullBackup = true;
    SnapshotDataStoreVO parentSnapshotOnBackupStore = snapshotStoreDao.findLatestSnapshotForVolume(snapshot.getVolumeId(), DataStoreRole.Image);
    final SnapshotDataStoreVO parentSnapshotOnPrimaryStore = snapshotStoreDao.findLatestSnapshotForVolume(snapshot.getVolumeId(), DataStoreRole.Primary);
    final HypervisorType hypervisorType = snapshot.getBaseVolume().getHypervisorType();
    if (parentSnapshotOnPrimaryStore != null && parentSnapshotOnBackupStore != null && hypervisorType == Hypervisor.HypervisorType.XenServer) {
        // CS does incremental backup
        // only for XenServer
        // In case of volume migration from one pool to other pool, CS should take full snapshot to avoid any issues with delta chain,
        // to check if this is a migrated volume, compare the current pool id of volume and store_id of oldest snapshot on primary for this volume.
        // Why oldest? Because at this point CS has two snapshot on primary entries for same volume, one with old pool_id and other one with
        // current pool id. So, verify and if volume found to be migrated, delete snapshot entry with previous pool store_id.
        final SnapshotDataStoreVO oldestSnapshotOnPrimary = snapshotStoreDao.findOldestSnapshotForVolume(snapshot.getVolumeId(), DataStoreRole.Primary);
        final VolumeVO volume = volumeDao.findById(snapshot.getVolumeId());
        if (oldestSnapshotOnPrimary != null) {
            if (oldestSnapshotOnPrimary.getDataStoreId() == volume.getPoolId()) {
                final int _deltaSnapshotMax = NumbersUtil.parseInt(configDao.getValue("snapshot.delta.max"), SnapshotManager.DELTAMAX);
                final int deltaSnap = _deltaSnapshotMax;
                int i;
                for (i = 1; i < deltaSnap; i++) {
                    final Long prevBackupId = parentSnapshotOnBackupStore.getParentSnapshotId();
                    if (prevBackupId == 0) {
                        break;
                    }
                    parentSnapshotOnBackupStore = snapshotStoreDao.findBySnapshot(prevBackupId, DataStoreRole.Image);
                    if (parentSnapshotOnBackupStore == null) {
                        break;
                    }
                }
                if (i >= deltaSnap) {
                    fullBackup = true;
                } else {
                    fullBackup = false;
                }
            } else {
                // if there is an snapshot entry for previousPool(primary storage) of migrated volume, delete it becasue CS created one more snapshot entry for current pool
                snapshotStoreDao.remove(oldestSnapshotOnPrimary.getId());
            }
        }
    }
    snapshot.addPayload(fullBackup);
    return snapshotSvr.backupSnapshot(snapshot);
}

Example 18 with SnapshotObjectTO

use of com.cloud.storage.to.SnapshotObjectTO in project cosmic by MissionCriticalCloud.

the class CloudStackPrimaryDataStoreDriverImpl method revertSnapshot.

@Override
public void revertSnapshot(final SnapshotInfo snapshot, final SnapshotInfo snapshotOnPrimaryStore, final AsyncCompletionCallback<CommandResult> callback) {
    final SnapshotObjectTO snapshotTO = (SnapshotObjectTO) snapshot.getTO();
    final RevertSnapshotCommand cmd = new RevertSnapshotCommand(snapshotTO);
    final CommandResult result = new CommandResult();
    try {
        final EndPoint ep = epSelector.select(snapshotOnPrimaryStore);
        if (ep == null) {
            final String errMsg = "No remote endpoint to send RevertSnapshotCommand, check if host or ssvm is down?";
            s_logger.error(errMsg);
            result.setResult(errMsg);
        } else {
            final Answer answer = ep.sendMessage(cmd);
            if (answer != null && !answer.getResult()) {
                result.setResult(answer.getDetails());
            }
        }
    } catch (final Exception ex) {
        s_logger.debug("Unable to revert snapshot " + snapshot.getId(), ex);
        result.setResult(ex.toString());
    }
    callback.complete(result);
}