Examples with OMVolumeDeleteResponse org.apache.hadoop.ozone.om.response.volume.OMVolumeDeleteResponse used on opensource projects

Example 1 with OMVolumeDeleteResponse

use of org.apache.hadoop.ozone.om.response.volume.OMVolumeDeleteResponse in project ozone by apache.

the class OMVolumeDeleteRequest method validateAndUpdateCache.

@Override
public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager, long transactionLogIndex, OzoneManagerDoubleBufferHelper ozoneManagerDoubleBufferHelper) {
    DeleteVolumeRequest deleteVolumeRequest = getOmRequest().getDeleteVolumeRequest();
    Preconditions.checkNotNull(deleteVolumeRequest);
    String volume = deleteVolumeRequest.getVolumeName();
    OMMetrics omMetrics = ozoneManager.getMetrics();
    omMetrics.incNumVolumeDeletes();
    OMResponse.Builder omResponse = OmResponseUtil.getOMResponseBuilder(getOmRequest());
    OMMetadataManager omMetadataManager = ozoneManager.getMetadataManager();
    boolean acquiredUserLock = false;
    boolean acquiredVolumeLock = false;
    IOException exception = null;
    String owner = null;
    OMClientResponse omClientResponse = null;
    try {
        // check Acl
        if (ozoneManager.getAclsEnabled()) {
            checkAcls(ozoneManager, OzoneObj.ResourceType.VOLUME, OzoneObj.StoreType.OZONE, IAccessAuthorizer.ACLType.DELETE, volume, null, null);
        }
        acquiredVolumeLock = omMetadataManager.getLock().acquireWriteLock(VOLUME_LOCK, volume);
        OmVolumeArgs omVolumeArgs = getVolumeInfo(omMetadataManager, volume);
        // Check reference count
        final long volRefCount = omVolumeArgs.getRefCount();
        if (volRefCount != 0L) {
            LOG.debug("volume: {} has a non-zero ref count. won't delete", volume);
            throw new OMException("Volume reference count is not zero (" + volRefCount + "). Ozone features are enabled on this volume. " + "Try `ozone tenant delete <tenantId>` first.", OMException.ResultCodes.VOLUME_IS_REFERENCED);
        }
        owner = omVolumeArgs.getOwnerName();
        acquiredUserLock = omMetadataManager.getLock().acquireWriteLock(USER_LOCK, owner);
        String dbUserKey = omMetadataManager.getUserKey(owner);
        String dbVolumeKey = omMetadataManager.getVolumeKey(volume);
        if (!omMetadataManager.isVolumeEmpty(volume)) {
            LOG.debug("volume:{} is not empty", volume);
            throw new OMException(OMException.ResultCodes.VOLUME_NOT_EMPTY);
        }
        OzoneManagerStorageProtos.PersistedUserVolumeInfo newVolumeList = omMetadataManager.getUserTable().get(owner);
        // delete the volume from the owner list
        // as well as delete the volume entry
        newVolumeList = delVolumeFromOwnerList(newVolumeList, volume, owner, transactionLogIndex);
        omMetadataManager.getUserTable().addCacheEntry(new CacheKey<>(dbUserKey), new CacheValue<>(Optional.of(newVolumeList), transactionLogIndex));
        omMetadataManager.getVolumeTable().addCacheEntry(new CacheKey<>(dbVolumeKey), new CacheValue<>(Optional.absent(), transactionLogIndex));
        omResponse.setDeleteVolumeResponse(DeleteVolumeResponse.newBuilder().build());
        omClientResponse = new OMVolumeDeleteResponse(omResponse.build(), volume, owner, newVolumeList);
    } catch (IOException ex) {
        exception = ex;
        omClientResponse = new OMVolumeDeleteResponse(createErrorOMResponse(omResponse, exception));
    } finally {
        addResponseToDoubleBuffer(transactionLogIndex, omClientResponse, ozoneManagerDoubleBufferHelper);
        if (acquiredUserLock) {
            omMetadataManager.getLock().releaseWriteLock(USER_LOCK, owner);
        }
        if (acquiredVolumeLock) {
            omMetadataManager.getLock().releaseWriteLock(VOLUME_LOCK, volume);
        }
    }
    // Performing audit logging outside of the lock.
    auditLog(ozoneManager.getAuditLogger(), buildAuditMessage(OMAction.DELETE_VOLUME, buildVolumeAuditMap(volume), exception, getOmRequest().getUserInfo()));
    // return response after releasing lock.
    if (exception == null) {
        LOG.debug("Volume deleted for user:{} volume:{}", owner, volume);
        omMetrics.decNumVolumes();
    } else {
        LOG.error("Volume deletion failed for user:{} volume:{}", owner, volume, exception);
        omMetrics.incNumVolumeDeleteFails();
    }
    return omClientResponse;
}