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

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

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        }
        boolean  fullBackup = false;
        int _deltaSnapshotMax = NumbersUtil.parseInt(configDao.getValue("snapshot.delta.max"),
                SnapshotManager.DELTAMAX);
        int deltaSnap = _deltaSnapshotMax;
        SnapshotDataStoreVO parentSnapshotOnBackupStore = this.snapshotStoreDao.findBySnapshot(snapshot.getId(), DataStoreRole.Image);
        int i;
        for (i = 1; (i < deltaSnap && (parentSnapshotOnBackupStore != null)); i++) {
            Long prevBackupId = parentSnapshotOnBackupStore.getParentSnapshotId();

            if (prevBackupId == 0 || prevBackupId == null) {
                break;
            }
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        SnapshotInfo parentSnapshot = snapshot.getParent();
        boolean fullBackup = needFullBackup(parentSnapshot);
        if (!fullBackup && isEmptySnapshot(snapshot, parentSnapshot)) {
            s_logger.debug("backup an empty snapshot");
            // don't need to backup this snapshot
            SnapshotDataStoreVO parentSnapshotOnBackupStore = this.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 this.snapshotDataFactory.getSnapshot(snapObj.getId(), store);
            } else {
                s_logger.debug("parent snapshot hasn't been backed up yet");
            }
        }

        //if fullbackup, delete the snapshot on primary storage in db, so that, snapshot.getparent will return empty, thus full snapshot on the backend
        if (fullBackup && parentSnapshot != null) {
            s_logger.debug("reach delta snapshots max, delete the snapshot on primary storage in db");
            SnapshotDataStoreVO parentSnapshotOnPrimary = snapshotStoreDao.findByStoreSnapshot(DataStoreRole.Primary, parentSnapshot.getDataStore().getId(),
                    parentSnapshot.getId());
            if (parentSnapshotOnPrimary != null) {
                snapshotStoreDao.remove(parentSnapshotOnPrimary.getId());
            }
        }
        return this.snapshotSvr.backupSnapshot(snapshot);
    }
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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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            if (obj.getType() == DataObjectType.TEMPLATE) {
                VMTemplateStoragePoolVO vo = new VMTemplateStoragePoolVO(dataStore.getId(), obj.getId());
                vo = templatePoolDao.persist(vo);
            } else if (obj.getType() == DataObjectType.SNAPSHOT) {
                SnapshotInfo snapshotInfo = (SnapshotInfo)obj;
                SnapshotDataStoreVO ss = new SnapshotDataStoreVO();
                ss.setSnapshotId(obj.getId());
                ss.setDataStoreId(dataStore.getId());
                ss.setRole(dataStore.getRole());
                ss.setVolumeId(snapshotInfo.getVolumeId());
                SnapshotDataStoreVO snapshotDataStoreVO = snapshotDataStoreDao.findParent(dataStore.getRole(), dataStore.getId(),snapshotInfo.getVolumeId());
                if (snapshotDataStoreVO != null) {
                    ss.setParentSnapshotId(snapshotDataStoreVO.getSnapshotId());
                }
                ss.setState(ObjectInDataStoreStateMachine.State.Allocated);
                ss = snapshotDataStoreDao.persist(ss);
            }
        } else {
            // Image store
            switch (obj.getType()) {
            case TEMPLATE:
                TemplateDataStoreVO ts = new TemplateDataStoreVO();
                ts.setTemplateId(obj.getId());
                ts.setDataStoreId(dataStore.getId());
                ts.setDataStoreRole(dataStore.getRole());
                String installPath = TemplateConstants.DEFAULT_TMPLT_ROOT_DIR + "/"
                        + TemplateConstants.DEFAULT_TMPLT_FIRST_LEVEL_DIR
                        + templateDao.findById(obj.getId()).getAccountId() + "/" + obj.getId();
                if (dataStore.getTO() instanceof S3TO) {
                    TemplateInfo tmpl = (TemplateInfo) obj;
                    installPath += "/" + tmpl.getUniqueName(); // for S3, we
                    // append
                    // template name
                    // in the path
                    // for template
                    // sync since we
                    // don't have
                    // template.properties
                    // there
                }
                ts.setInstallPath(installPath);
                ts.setState(ObjectInDataStoreStateMachine.State.Allocated);
                ts = templateDataStoreDao.persist(ts);
                break;
            case SNAPSHOT:
                SnapshotInfo snapshot = (SnapshotInfo) obj;
                SnapshotDataStoreVO ss = new SnapshotDataStoreVO();
                ss.setSnapshotId(obj.getId());
                ss.setDataStoreId(dataStore.getId());
                ss.setRole(dataStore.getRole());
                ss.setRole(dataStore.getRole());
                ss.setVolumeId(snapshot.getVolumeId());
                SnapshotDataStoreVO snapshotDataStoreVO = snapshotDataStoreDao.findParent(dataStore.getRole(), dataStore.getId(),snapshot.getVolumeId());
                if (snapshotDataStoreVO != null) {
                    ss.setParentSnapshotId(snapshotDataStoreVO.getSnapshotId());
                }
                ss.setInstallPath(TemplateConstants.DEFAULT_SNAPSHOT_ROOT_DIR + "/"
                        + snapshotDao.findById(obj.getId()).getAccountId() + "/" + snapshot.getVolumeId());
                ss.setState(ObjectInDataStoreStateMachine.State.Allocated);
                ss = snapshotDataStoreDao.persist(ss);
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                    s_logger.warn("Template " + objId + " is not found on image store " + dataStore.getId()
                            + ", so no need to delete");
                    return true;
                }
            case SNAPSHOT:
                SnapshotDataStoreVO destSnapshotStore = snapshotDataStoreDao.findByStoreSnapshot(dataStore.getRole(),
                        dataStore.getId(), objId);
                if (destSnapshotStore != null) {
                    return snapshotDataStoreDao.remove(destSnapshotStore.getId());
                } else {
                    s_logger.warn("Snapshot " + objId + " is not found on image store " + dataStore.getId()
                            + ", so no need to delete");
                    return true;
                }
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                } else {
                    s_logger.warn("Template " + objId + " is not found on storage pool " + dataStore.getId() + ", so no need to delete");
                    return true;
                }
            } else if (dataObj.getType() == DataObjectType.SNAPSHOT) {
                SnapshotDataStoreVO destSnapshotStore = snapshotDataStoreDao.findByStoreSnapshot(dataStore.getRole(), dataStore.getId(), objId);
                if (destSnapshotStore != null && destSnapshotStore.getState() != ObjectInDataStoreStateMachine.State.Ready) {
                    snapshotDataStoreDao.remove(destSnapshotStore.getId());
                }
                return true;
            }
        } else {
            // Image store
            switch (dataObj.getType()) {
            case TEMPLATE:
                return true;
            case SNAPSHOT:
                SnapshotDataStoreVO destSnapshotStore = snapshotDataStoreDao.findByStoreSnapshot(dataStore.getRole(), dataStore.getId(), objId);
                if (destSnapshotStore != null && destSnapshotStore.getState() != ObjectInDataStoreStateMachine.State.Ready) {
                    return snapshotDataStoreDao.remove(destSnapshotStore.getId());
                } else {
                    s_logger.warn("Snapshot " + objId + " is not found on image store " + dataStore.getId() + ", so no need to delete");
                    return true;
                }
            case VOLUME:
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        snapshotSc.and(snapshotSc.entity().getLastUpdated(), SearchCriteria.Op.LT, bef);
        snapshotSc.and(snapshotSc.entity().getState(), SearchCriteria.Op.EQ, ObjectInDataStoreStateMachine.State.Ready);
        snapshotSc.and(snapshotSc.entity().getDataStoreId(), SearchCriteria.Op.EQ, store.getId());
        snapshotSc.and(snapshotSc.entity().getRole(), SearchCriteria.Op.EQ, store.getRole());
        snapshotSc.and(snapshotSc.entity().getRefCnt(), SearchCriteria.Op.EQ, 0);
        SnapshotDataStoreVO snapshot = snapshotSc.find();
        if (snapshot != null) {
            return snapshotFactory.getSnapshot(snapshot.getSnapshotId(), store);
        }

        return null;
    }
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        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;
        }
        SnapshotDataStoreVO snapshotStoreRef = _snapshotStoreDao.findBySnapshot(snapshotId, DataStoreRole.Image);

        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());
                }
                if (snapshotCheck.getState() != Snapshot.State.Error && snapshotCheck.getState() != Snapshot.State.Destroyed)
                _resourceLimitMgr.decrementResourceCount(snapshotCheck.getAccountId(), ResourceType.snapshot);
                if (snapshotCheck.getState() == Snapshot.State.BackedUp)
                    _resourceLimitMgr.decrementResourceCount(snapshotCheck.getAccountId(), ResourceType.secondary_storage, new Long(snapshotStoreRef.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());
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        }
    }

    @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");
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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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