Package org.apache.cloudstack.storage.datastore.db

Examples of org.apache.cloudstack.storage.datastore.db.SnapshotDataStoreVO

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                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;
                }
                SnapshotDataStoreVO snapshotStoreRef = _snapshotStoreDao.findBySnapshot(snapshot.getId(), DataStoreRole.Image);

                if (snapshotStrategy.deleteSnapshot(snapshot.getId())) {
                    if (Type.MANUAL == snapshot.getRecurringType()) {
                        _resourceLimitMgr.decrementResourceCount(accountId, ResourceType.snapshot);
                        _resourceLimitMgr.decrementResourceCount(accountId, ResourceType.secondary_storage, new Long(snapshotStoreRef.getSize()));
                    }

                    // Log event after successful deletion
                    UsageEventUtils.publishUsageEvent(EventTypes.EVENT_SNAPSHOT_DELETE, snapshot.getAccountId(),
                            volume.getDataCenterId(), snapshot.getId(), snapshot.getName(), null, null,
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                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());
                SnapshotDataStoreVO snapshotStoreRef = _snapshotStoreDao.findBySnapshot(snapshotId, DataStoreRole.Image);
                // Correct the resource count of snapshot in case of delta snapshots.
                _resourceLimitMgr.decrementResourceCount(snapshotOwner.getId(), ResourceType.secondary_storage, new Long(volume.getSize() - snapshotStoreRef.getSize()));
            } catch (Exception e) {
                s_logger.debug("post process snapshot failed", e);
            }
        } catch(Exception e) {
            s_logger.debug("Failed to create snapshot", e);
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        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
            SnapshotDataStoreVO parentSnapshotOnBackupStore = snapshotStoreDao.findBySnapshot(
                    parentSnapshot.getId(), DataStoreRole.Image);
            if (parentSnapshotOnBackupStore != null && parentSnapshotOnBackupStore.getState() == State.Ready) {
                DataStore store = dataStoreMgr.getDataStore(parentSnapshotOnBackupStore.getDataStoreId(),
                        parentSnapshotOnBackupStore.getRole());

                SnapshotInfo snapshotOnImageStore = (SnapshotInfo) store.create(snapshot);
                snapshotOnImageStore.processEvent(Event.CreateOnlyRequested);

                SnapshotObjectTO snapTO = new SnapshotObjectTO();
                snapTO.setPath(parentSnapshotOnBackupStore.getInstallPath());

                CreateObjectAnswer createSnapshotAnswer = new CreateObjectAnswer(snapTO);

                snapshotOnImageStore.processEvent(Event.OperationSuccessed, createSnapshotAnswer);
                SnapshotObject snapObj = (SnapshotObject) snapshot;
                try {
                    snapObj.processEvent(Snapshot.Event.OperationNotPerformed);
                } catch (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);
        HypervisorType hypervisorType = snapshot.getBaseVolume().getHypervisorType();
        if (parentSnapshotOnBackupStore != null && hypervisorType == Hypervisor.HypervisorType.XenServer) { // CS does incremental backup only for XenServer
            int _deltaSnapshotMax = NumbersUtil.parseInt(configDao.getValue("snapshot.delta.max"),
                    SnapshotManager.DELTAMAX);
            int deltaSnap = _deltaSnapshotMax;

            int i;

            for (i = 1; i < deltaSnap; i++) {
                Long prevBackupId = parentSnapshotOnBackupStore.getParentSnapshotId();

                if (prevBackupId == 0) {
                    break;
                }
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        try {
            boolean result = deleteSnapshotChain(snapshotOnImage);
            obj.processEvent(Snapshot.Event.OperationSucceeded);
            if (result) {
                //snapshot is deleted on backup storage, need to delete it on primary storage
                SnapshotDataStoreVO snapshotOnPrimary = snapshotStoreDao.findBySnapshot(snapshotId, DataStoreRole.Primary);
                if (snapshotOnPrimary != null) {
                    snapshotOnPrimary.setState(State.Destroyed);
                    snapshotStoreDao.update(snapshotOnPrimary.getId(), snapshotOnPrimary);
                }
            }
        } catch (Exception e) {
            s_logger.debug("Failed to delete snapshot: ", e);
            try {
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            try {
                SnapshotInfo parent = snapshot.getParent();
                if (backupedSnapshot != null && parent != null) {
                    Long parentSnapshotId = parent.getId();
                    while (parentSnapshotId != null && parentSnapshotId != 0L) {
                        SnapshotDataStoreVO snapshotDataStoreVO = snapshotStoreDao.findByStoreSnapshot(primaryStore.getRole(),primaryStore.getId(), parentSnapshotId);
                        if (snapshotDataStoreVO != null) {
                            parentSnapshotId = snapshotDataStoreVO.getParentSnapshotId();
                            snapshotStoreDao.remove(snapshotDataStoreVO.getId());
                        } else {
                            parentSnapshotId = null;
                        }
                    }
                    SnapshotDataStoreVO snapshotDataStoreVO = snapshotStoreDao.findByStoreSnapshot(primaryStore.getRole(), primaryStore.getId(),
                            snapshot.getId());
                    if (snapshotDataStoreVO != null) {
                        snapshotDataStoreVO.setParentSnapshotId(0L);
                        snapshotStoreDao.update(snapshotDataStoreVO.getId(), snapshotDataStoreVO);
                    }
                }
            } catch (Exception e) {
                s_logger.debug("Failed to clean up snapshots on primary storage", e);
            }
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    }

    @Override
    public SnapshotInfo getParent() {

        SnapshotDataStoreVO snapStoreVO = snapshotStoreDao.findByStoreSnapshot(store.getRole(),
                store.getId(), snapshot.getId());
        Long parentId = null;
        if (snapStoreVO != null) {
            parentId = snapStoreVO.getParentSnapshotId();
            if (parentId != null && parentId != 0) {
                return snapshotFactory.getSnapshot(parentId, store);
            }
        }
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        QueryBuilder<SnapshotDataStoreVO> sc = QueryBuilder.create(SnapshotDataStoreVO.class);
        sc.and(sc.entity().getDataStoreId(), Op.EQ,store.getId());
        sc.and(sc.entity().getRole(), Op.EQ,store.getRole());
        sc.and(sc.entity().getState(), Op.NIN, State.Destroying, State.Destroyed, State.Error);
        sc.and(sc.entity().getParentSnapshotId(), Op.EQ,getId());
        SnapshotDataStoreVO vo = sc.find();
        if (vo == null) {
            return null;
        }
        return snapshotFactory.getSnapshot(vo.getId(), store);
    }
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    }

    @Override
    public void processEvent(ObjectInDataStoreStateMachine.Event event, Answer answer) {
        try {
            SnapshotDataStoreVO snapshotStore = snapshotStoreDao.findByStoreSnapshot(
                    getDataStore().getRole(), getDataStore().getId(), getId());
            if (answer instanceof CreateObjectAnswer) {
                SnapshotObjectTO snapshotTO = (SnapshotObjectTO) ((CreateObjectAnswer) answer).getData();
                snapshotStore.setInstallPath(snapshotTO.getPath());
                snapshotStoreDao.update(snapshotStore.getId(), snapshotStore);
            } else if (answer instanceof CopyCmdAnswer) {
                SnapshotObjectTO snapshotTO = (SnapshotObjectTO) ((CopyCmdAnswer) answer).getNewData();
                snapshotStore.setInstallPath(snapshotTO.getPath());
                if (snapshotTO.getPhysicalSize() != null) {
                    // For S3 delta snapshot, physical size is currently not set
                    snapshotStore.setSize(snapshotTO.getPhysicalSize());
                }
                if (snapshotTO.getParentSnapshotPath() == null) {
                    snapshotStore.setParentSnapshotId(0L);
                }
                snapshotStoreDao.update(snapshotStore.getId(), snapshotStore);

                // update side-effect of snapshot operation
                if(snapshotTO.getVolume() != null && snapshotTO.getVolume().getPath() != null) {
                    VolumeVO vol = volumeDao.findByUuid(snapshotTO.getVolume().getUuid());
                    if(vol != null) {
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        if (store == null) {
            return;
        }

        if (store.getRole() == DataStoreRole.Image || store.getRole() == DataStoreRole.ImageCache) {
            SnapshotDataStoreVO store = snapshotStoreDao.findByStoreSnapshot(this.store.getRole(), this.store.getId(),
                    getId());
            store.incrRefCnt();
            store.setLastUpdated(new Date());
            snapshotStoreDao.update(store.getId(), store);
        }
    }
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    public void decRefCount() {
        if (store == null) {
            return;
        }
        if (store.getRole() == DataStoreRole.Image || store.getRole() == DataStoreRole.ImageCache) {
            SnapshotDataStoreVO store = snapshotStoreDao.findByStoreSnapshot(this.store.getRole(), this.store.getId(),
                    getId());
            store.decrRefCnt();
            store.setLastUpdated(new Date());
            snapshotStoreDao.update(store.getId(), store);
        }
    }
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Related Classes of org.apache.cloudstack.storage.datastore.db.SnapshotDataStoreVO

  • com.cloud.storage.snapshot.SnapshotManagerImpl
  • org.apache.cloudstack.storage.cache.manager.StorageCacheReplacementAlgorithmLRU
  • org.apache.cloudstack.storage.datastore.ObjectInDataStoreManagerImpl
  • org.apache.cloudstack.storage.image.db.SnapshotDataStoreDaoImpl
  • org.apache.cloudstack.storage.snapshot.SnapshotDataFactoryImpl
  • org.apache.cloudstack.storage.snapshot.SnapshotObject
  • org.apache.cloudstack.storage.snapshot.SnapshotServiceImpl
  • org.apache.cloudstack.storage.snapshot.XenserverSnapshotStrategy
  • org.apache.cloudstack.storage.test.SnapshotTestWithFakeData
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