Examples with SnapshotDataStoreVO org.apache.cloudstack.storage.datastore.db.SnapshotDataStoreVO used on opensource projects

Example 56 with SnapshotDataStoreVO

use of org.apache.cloudstack.storage.datastore.db.SnapshotDataStoreVO in project cloudstack by apache.

the class DefaultSnapshotStrategy method backupSnapshot.

@Override
public SnapshotInfo backupSnapshot(SnapshotInfo snapshot) {
    SnapshotInfo parentSnapshot = snapshot.getParent();
    if (parentSnapshot != null && snapshot.getPath().equalsIgnoreCase(parentSnapshot.getPath())) {
        // 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);
    SnapshotDataStoreVO parentSnapshotOnPrimaryStore = snapshotStoreDao.findLatestSnapshotForVolume(snapshot.getVolumeId(), DataStoreRole.Primary);
    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.
        SnapshotDataStoreVO oldestSnapshotOnPrimary = snapshotStoreDao.findOldestSnapshotForVolume(snapshot.getVolumeId(), DataStoreRole.Primary);
        VolumeVO volume = volumeDao.findById(snapshot.getVolumeId());
        if (oldestSnapshotOnPrimary != null) {
            if (oldestSnapshotOnPrimary.getDataStoreId() == volume.getPoolId() && oldestSnapshotOnPrimary.getId() != parentSnapshotOnPrimaryStore.getId()) {
                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;
                    }
                    parentSnapshotOnBackupStore = snapshotStoreDao.findBySnapshot(prevBackupId, DataStoreRole.Image);
                    if (parentSnapshotOnBackupStore == null) {
                        break;
                    }
                }
                if (i >= deltaSnap) {
                    fullBackup = true;
                } else {
                    fullBackup = false;
                }
            } else if (oldestSnapshotOnPrimary.getId() != parentSnapshotOnPrimaryStore.getId()) {
                // 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.setFullBackup(fullBackup);
    return snapshotSvr.backupSnapshot(snapshot);
}

Example 57 with SnapshotDataStoreVO

use of org.apache.cloudstack.storage.datastore.db.SnapshotDataStoreVO in project cloudstack by apache.

the class SnapshotObject method getChildren.

@Override
public List<SnapshotInfo> getChildren() {
    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());
    List<SnapshotDataStoreVO> vos = sc.list();
    List<SnapshotInfo> children = new ArrayList<>();
    if (vos != null) {
        for (SnapshotDataStoreVO vo : vos) {
            SnapshotInfo info = snapshotFactory.getSnapshot(vo.getSnapshotId(), DataStoreRole.Image);
            if (info != null) {
                children.add(info);
            }
        }
    }
    return children;
}

Example 58 with SnapshotDataStoreVO

use of org.apache.cloudstack.storage.datastore.db.SnapshotDataStoreVO in project cloudstack by apache.

the class SnapshotObject method getParent.

@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);
        }
    }
    return null;
}

Example 59 with SnapshotDataStoreVO

use of org.apache.cloudstack.storage.datastore.db.SnapshotDataStoreVO in project cloudstack by apache.

the class SnapshotDataStoreDaoImpl method deletePrimaryRecordsForStore.

@Override
public void deletePrimaryRecordsForStore(long id, DataStoreRole role) {
    SearchCriteria<SnapshotDataStoreVO> sc = storeSearch.create();
    sc.setParameters("store_id", id);
    sc.setParameters("store_role", role);
    TransactionLegacy txn = TransactionLegacy.currentTxn();
    txn.start();
    remove(sc);
    txn.commit();
}

Example 60 with SnapshotDataStoreVO

use of org.apache.cloudstack.storage.datastore.db.SnapshotDataStoreVO in project cloudstack by apache.

the class SnapshotDataStoreDaoImpl method updateStoreRoleToCache.

@Override
public void updateStoreRoleToCache(long storeId) {
    SearchCriteria<SnapshotDataStoreVO> sc = storeSearch.create();
    sc.setParameters("store_id", storeId);
    sc.setParameters("destroyed", false);
    List<SnapshotDataStoreVO> snaps = listBy(sc);
    if (snaps != null) {
        s_logger.info("Update to cache store role for " + snaps.size() + " entries in snapshot_store_ref");
        for (SnapshotDataStoreVO snap : snaps) {
            snap.setRole(DataStoreRole.ImageCache);
            update(snap.getId(), snap);
        }
    }
}