Examples with SnapshotGroup org.apache.cloudstack.storage.datastore.api.SnapshotGroup used on opensource projects

Example 1 with SnapshotGroup

use of org.apache.cloudstack.storage.datastore.api.SnapshotGroup in project cloudstack by apache.

the class ScaleIOGatewayClientImpl method revertSnapshot.

@Override
public boolean revertSnapshot(final String systemId, final Map<String, String> srcSnapshotDestVolumeMap) {
    Preconditions.checkArgument(StringUtils.isNotEmpty(systemId), "System id cannot be null");
    Preconditions.checkArgument(srcSnapshotDestVolumeMap != null && !srcSnapshotDestVolumeMap.isEmpty(), "srcSnapshotDestVolumeMap cannot be null");
    // Take group snapshot (needs additional storage pool capacity till revert operation) to keep the last state of all volumes ???
    // and delete the group snapshot after revert operation
    // If revert snapshot failed for any volume, use the group snapshot, to revert volumes to last state
    Map<String, String> srcVolumeDestSnapshotMap = new HashMap<>();
    List<String> originalVolumeIds = new ArrayList<>();
    for (final String sourceSnapshotVolumeId : srcSnapshotDestVolumeMap.keySet()) {
        String destVolumeId = srcSnapshotDestVolumeMap.get(sourceSnapshotVolumeId);
        srcVolumeDestSnapshotMap.put(destVolumeId, "");
        originalVolumeIds.add(destVolumeId);
    }
    SnapshotGroup snapshotGroup = takeSnapshot(srcVolumeDestSnapshotMap);
    if (snapshotGroup == null) {
        throw new CloudRuntimeException("Failed to snapshot the last vm state");
    }
    boolean revertSnapshotResult = true;
    int revertStatusIndex = -1;
    try {
        // non-atomic operation, try revert each volume
        for (final String sourceSnapshotVolumeId : srcSnapshotDestVolumeMap.keySet()) {
            String destVolumeId = srcSnapshotDestVolumeMap.get(sourceSnapshotVolumeId);
            boolean revertStatus = revertSnapshot(sourceSnapshotVolumeId, destVolumeId);
            if (!revertStatus) {
                revertSnapshotResult = false;
                LOG.warn("Failed to revert snapshot for volume id: " + sourceSnapshotVolumeId);
                throw new CloudRuntimeException("Failed to revert snapshot for volume id: " + sourceSnapshotVolumeId);
            } else {
                revertStatusIndex++;
            }
        }
    } catch (final Exception e) {
        LOG.error("Failed to revert vm snapshot due to: " + e.getMessage(), e);
        throw new CloudRuntimeException("Failed to revert vm snapshot due to: " + e.getMessage());
    } finally {
        if (!revertSnapshotResult) {
            // revert to volume with last state and delete the snapshot group, for already reverted volumes
            List<String> volumesWithLastState = snapshotGroup.getVolumeIds();
            for (int index = revertStatusIndex; index >= 0; index--) {
                // Handling failure for revert again will become recursive ???
                revertSnapshot(volumesWithLastState.get(index), originalVolumeIds.get(index));
            }
        }
        deleteSnapshotGroup(systemId, snapshotGroup.getSnapshotGroupId());
    }
    return revertSnapshotResult;
}

Example 2 with SnapshotGroup

use of org.apache.cloudstack.storage.datastore.api.SnapshotGroup in project cloudstack by apache.

the class ScaleIOVMSnapshotStrategy method takeVMSnapshot.

@Override
public VMSnapshot takeVMSnapshot(VMSnapshot vmSnapshot) {
    UserVm userVm = userVmDao.findById(vmSnapshot.getVmId());
    VMSnapshotVO vmSnapshotVO = (VMSnapshotVO) vmSnapshot;
    try {
        vmSnapshotHelper.vmSnapshotStateTransitTo(vmSnapshotVO, VMSnapshot.Event.CreateRequested);
    } catch (NoTransitionException e) {
        throw new CloudRuntimeException(e.getMessage());
    }
    boolean result = false;
    try {
        Map<String, String> srcVolumeDestSnapshotMap = new HashMap<>();
        List<VolumeObjectTO> volumeTOs = vmSnapshotHelper.getVolumeTOList(userVm.getId());
        final Long storagePoolId = vmSnapshotHelper.getStoragePoolForVM(userVm.getId());
        StoragePoolVO storagePool = storagePoolDao.findById(storagePoolId);
        long prev_chain_size = 0;
        long virtual_size = 0;
        for (VolumeObjectTO volume : volumeTOs) {
            String volumeSnapshotName = String.format("%s-%s-%s-%s-%s", ScaleIOUtil.VMSNAPSHOT_PREFIX, vmSnapshotVO.getId(), volume.getId(), storagePool.getUuid().split("-")[0].substring(4), ManagementServerImpl.customCsIdentifier.value());
            srcVolumeDestSnapshotMap.put(ScaleIOUtil.getVolumePath(volume.getPath()), volumeSnapshotName);
            virtual_size += volume.getSize();
            VolumeVO volumeVO = volumeDao.findById(volume.getId());
            prev_chain_size += volumeVO.getVmSnapshotChainSize() == null ? 0 : volumeVO.getVmSnapshotChainSize();
        }
        VMSnapshotTO current = null;
        VMSnapshotVO currentSnapshot = vmSnapshotDao.findCurrentSnapshotByVmId(userVm.getId());
        if (currentSnapshot != null) {
            current = vmSnapshotHelper.getSnapshotWithParents(currentSnapshot);
        }
        if (current == null)
            vmSnapshotVO.setParent(null);
        else
            vmSnapshotVO.setParent(current.getId());
        try {
            final ScaleIOGatewayClient client = getScaleIOClient(storagePoolId);
            SnapshotGroup snapshotGroup = client.takeSnapshot(srcVolumeDestSnapshotMap);
            if (snapshotGroup == null) {
                throw new CloudRuntimeException("Failed to take VM snapshot on PowerFlex storage pool");
            }
            String snapshotGroupId = snapshotGroup.getSnapshotGroupId();
            List<String> volumeIds = snapshotGroup.getVolumeIds();
            if (volumeIds != null && !volumeIds.isEmpty()) {
                List<VMSnapshotDetailsVO> vmSnapshotDetails = new ArrayList<VMSnapshotDetailsVO>();
                vmSnapshotDetails.add(new VMSnapshotDetailsVO(vmSnapshot.getId(), "SnapshotGroupId", snapshotGroupId, false));
                for (int index = 0; index < volumeIds.size(); index++) {
                    String volumeSnapshotName = srcVolumeDestSnapshotMap.get(ScaleIOUtil.getVolumePath(volumeTOs.get(index).getPath()));
                    String pathWithScaleIOVolumeName = ScaleIOUtil.updatedPathWithVolumeName(volumeIds.get(index), volumeSnapshotName);
                    vmSnapshotDetails.add(new VMSnapshotDetailsVO(vmSnapshot.getId(), "Vol_" + volumeTOs.get(index).getId() + "_Snapshot", pathWithScaleIOVolumeName, false));
                }
                vmSnapshotDetailsDao.saveDetails(vmSnapshotDetails);
            }
            finalizeCreate(vmSnapshotVO, volumeTOs);
            result = true;
            LOGGER.debug("Create vm snapshot " + vmSnapshot.getName() + " succeeded for vm: " + userVm.getInstanceName());
            long new_chain_size = 0;
            for (VolumeObjectTO volumeTo : volumeTOs) {
                publishUsageEvent(EventTypes.EVENT_VM_SNAPSHOT_CREATE, vmSnapshot, userVm, volumeTo);
                new_chain_size += volumeTo.getSize();
            }
            publishUsageEvent(EventTypes.EVENT_VM_SNAPSHOT_ON_PRIMARY, vmSnapshot, userVm, new_chain_size - prev_chain_size, virtual_size);
            return vmSnapshot;
        } catch (Exception e) {
            String errMsg = "Unable to take vm snapshot due to: " + e.getMessage();
            LOGGER.warn(errMsg, e);
            throw new CloudRuntimeException(errMsg);
        }
    } finally {
        if (!result) {
            try {
                vmSnapshotHelper.vmSnapshotStateTransitTo(vmSnapshot, VMSnapshot.Event.OperationFailed);
                String subject = "Take snapshot failed for VM: " + userVm.getDisplayName();
                String message = "Snapshot operation failed for VM: " + userVm.getDisplayName() + ", Please check and delete if any stale volumes created with VM snapshot id: " + vmSnapshot.getVmId();
                alertManager.sendAlert(AlertManager.AlertType.ALERT_TYPE_VM_SNAPSHOT, userVm.getDataCenterId(), userVm.getPodIdToDeployIn(), subject, message);
            } catch (NoTransitionException e1) {
                LOGGER.error("Cannot set vm snapshot state due to: " + e1.getMessage());
            }
        }
    }
}

Example 3 with SnapshotGroup

use of org.apache.cloudstack.storage.datastore.api.SnapshotGroup in project cloudstack by apache.

the class ScaleIOGatewayClientImpl method takeSnapshot.

@Override
public Volume takeSnapshot(final String volumeId, final String snapshotVolumeName) {
    Preconditions.checkArgument(StringUtils.isNotEmpty(volumeId), "Volume id cannot be null");
    Preconditions.checkArgument(StringUtils.isNotEmpty(snapshotVolumeName), "Snapshot name cannot be null");
    final SnapshotDef[] snapshotDef = new SnapshotDef[1];
    snapshotDef[0] = new SnapshotDef();
    snapshotDef[0].setVolumeId(volumeId);
    snapshotDef[0].setSnapshotName(snapshotVolumeName);
    final SnapshotDefs snapshotDefs = new SnapshotDefs();
    snapshotDefs.setSnapshotDefs(snapshotDef);
    SnapshotGroup snapshotGroup = post("/instances/System/action/snapshotVolumes", snapshotDefs, SnapshotGroup.class);
    if (snapshotGroup != null) {
        List<String> volumeIds = snapshotGroup.getVolumeIds();
        if (volumeIds != null && !volumeIds.isEmpty()) {
            return getVolume(volumeIds.get(0));
        }
    }
    return null;
}