Examples with BackendException com.thinkaurelius.titan.diskstorage.BackendException used on opensource projects

Example 16 with BackendException

use of com.thinkaurelius.titan.diskstorage.BackendException in project incubator-atlas by apache.

the class Solr5Index method clearStorage.

@Override
public void clearStorage() throws BackendException {
    try {
        if (mode != Mode.CLOUD)
            throw new UnsupportedOperationException("Operation only supported for SolrCloud");
        logger.debug("Clearing storage from Solr: {}", solrClient);
        ZkStateReader zkStateReader = ((CloudSolrClient) solrClient).getZkStateReader();
        zkStateReader.updateClusterState();
        ClusterState clusterState = zkStateReader.getClusterState();
        for (String collection : clusterState.getCollections()) {
            logger.debug("Clearing collection [{}] in Solr", collection);
            UpdateRequest deleteAll = newUpdateRequest();
            deleteAll.deleteByQuery("*:*");
            solrClient.request(deleteAll, collection);
        }
    } catch (SolrServerException e) {
        logger.error("Unable to clear storage from index due to server error on Solr.", e);
        throw new PermanentBackendException(e);
    } catch (IOException e) {
        logger.error("Unable to clear storage from index due to low-level I/O error.", e);
        throw new PermanentBackendException(e);
    } catch (Exception e) {
        logger.error("Unable to clear storage from index due to general error.", e);
        throw new PermanentBackendException(e);
    }
}

Example 17 with BackendException

use of com.thinkaurelius.titan.diskstorage.BackendException in project incubator-atlas by apache.

the class Solr5Index method restore.

@Override
public void restore(Map<String, Map<String, List<IndexEntry>>> documents, KeyInformation.IndexRetriever informations, BaseTransaction tx) throws BackendException {
    try {
        for (Map.Entry<String, Map<String, List<IndexEntry>>> stores : documents.entrySet()) {
            final String collectionName = stores.getKey();
            List<String> deleteIds = new ArrayList<>();
            List<SolrInputDocument> newDocuments = new ArrayList<>();
            for (Map.Entry<String, List<IndexEntry>> entry : stores.getValue().entrySet()) {
                final String docID = entry.getKey();
                final List<IndexEntry> content = entry.getValue();
                if (content == null || content.isEmpty()) {
                    if (logger.isTraceEnabled())
                        logger.trace("Deleting document [{}]", docID);
                    deleteIds.add(docID);
                    continue;
                }
                newDocuments.add(new SolrInputDocument() {

                    {
                        setField(getKeyFieldId(collectionName), docID);
                        for (IndexEntry addition : content) {
                            Object fieldValue = addition.value;
                            setField(addition.field, convertValue(fieldValue));
                        }
                    }
                });
            }
            commitDeletes(collectionName, deleteIds);
            commitDocumentChanges(collectionName, newDocuments);
        }
    } catch (Exception e) {
        throw new TemporaryBackendException("Could not restore Solr index", e);
    }
}

Example 18 with BackendException

use of com.thinkaurelius.titan.diskstorage.BackendException in project titan by thinkaurelius.

the class ManagementSystem method updateIndex.

/* --------------
    Schema Update
     --------------- */
@Override
public IndexJobFuture updateIndex(TitanIndex index, SchemaAction updateAction) {
    Preconditions.checkArgument(index != null, "Need to provide an index");
    Preconditions.checkArgument(updateAction != null, "Need to provide update action");
    TitanSchemaVertex schemaVertex = getSchemaVertex(index);
    Set<TitanSchemaVertex> dependentTypes;
    Set<PropertyKeyVertex> keySubset = ImmutableSet.of();
    if (index instanceof RelationTypeIndex) {
        dependentTypes = ImmutableSet.of((TitanSchemaVertex) ((InternalRelationType) schemaVertex).getBaseType());
        if (!updateAction.isApplicableStatus(schemaVertex.getStatus()))
            return null;
    } else if (index instanceof TitanGraphIndex) {
        IndexType indexType = schemaVertex.asIndexType();
        dependentTypes = Sets.newHashSet();
        if (indexType.isCompositeIndex()) {
            if (!updateAction.isApplicableStatus(schemaVertex.getStatus()))
                return null;
            for (PropertyKey key : ((TitanGraphIndex) index).getFieldKeys()) {
                dependentTypes.add((PropertyKeyVertex) key);
            }
        } else {
            keySubset = Sets.newHashSet();
            MixedIndexType cindexType = (MixedIndexType) indexType;
            Set<SchemaStatus> applicableStatus = updateAction.getApplicableStatus();
            for (ParameterIndexField field : cindexType.getFieldKeys()) {
                if (applicableStatus.contains(field.getStatus()))
                    keySubset.add((PropertyKeyVertex) field.getFieldKey());
            }
            if (keySubset.isEmpty())
                return null;
            dependentTypes.addAll(keySubset);
        }
    } else
        throw new UnsupportedOperationException("Updates not supported for index: " + index);
    IndexIdentifier indexId = new IndexIdentifier(index);
    StandardScanner.Builder builder;
    IndexJobFuture future;
    switch(updateAction) {
        case REGISTER_INDEX:
            setStatus(schemaVertex, SchemaStatus.INSTALLED, keySubset);
            updatedTypes.add(schemaVertex);
            updatedTypes.addAll(dependentTypes);
            setUpdateTrigger(new UpdateStatusTrigger(graph, schemaVertex, SchemaStatus.REGISTERED, keySubset));
            future = new EmptyIndexJobFuture();
            break;
        case REINDEX:
            builder = graph.getBackend().buildEdgeScanJob();
            builder.setFinishJob(indexId.getIndexJobFinisher(graph, SchemaAction.ENABLE_INDEX));
            builder.setJobId(indexId);
            builder.setJob(VertexJobConverter.convert(graph, new IndexRepairJob(indexId.indexName, indexId.relationTypeName)));
            try {
                future = builder.execute();
            } catch (BackendException e) {
                throw new TitanException(e);
            }
            break;
        case ENABLE_INDEX:
            setStatus(schemaVertex, SchemaStatus.ENABLED, keySubset);
            updatedTypes.add(schemaVertex);
            if (!keySubset.isEmpty())
                updatedTypes.addAll(dependentTypes);
            future = new EmptyIndexJobFuture();
            break;
        case DISABLE_INDEX:
            setStatus(schemaVertex, SchemaStatus.INSTALLED, keySubset);
            updatedTypes.add(schemaVertex);
            if (!keySubset.isEmpty())
                updatedTypes.addAll(dependentTypes);
            setUpdateTrigger(new UpdateStatusTrigger(graph, schemaVertex, SchemaStatus.DISABLED, keySubset));
            future = new EmptyIndexJobFuture();
            break;
        case REMOVE_INDEX:
            if (index instanceof RelationTypeIndex) {
                builder = graph.getBackend().buildEdgeScanJob();
            } else {
                TitanGraphIndex gindex = (TitanGraphIndex) index;
                if (gindex.isMixedIndex())
                    throw new UnsupportedOperationException("External mixed indexes must be removed in the indexing system directly.");
                builder = graph.getBackend().buildGraphIndexScanJob();
            }
            builder.setFinishJob(indexId.getIndexJobFinisher());
            builder.setJobId(indexId);
            builder.setJob(new IndexRemoveJob(graph, indexId.indexName, indexId.relationTypeName));
            try {
                future = builder.execute();
            } catch (BackendException e) {
                throw new TitanException(e);
            }
            break;
        default:
            throw new UnsupportedOperationException("Update action not supported: " + updateAction);
    }
    return future;
}

Example 19 with BackendException

use of com.thinkaurelius.titan.diskstorage.BackendException in project titan by thinkaurelius.

the class IDPoolTest method testAllocationTimeoutAndRecovery.

@Test
public void testAllocationTimeoutAndRecovery() throws BackendException {
    IMocksControl ctrl = EasyMock.createStrictControl();
    final int partition = 42;
    final int idNamespace = 777;
    final Duration timeout = Duration.ofSeconds(1L);
    final IDAuthority mockAuthority = ctrl.createMock(IDAuthority.class);
    // Sleep for two seconds, then throw a backendexception
    // this whole delegate could be deleted if we abstracted StandardIDPool's internal executor and stopwatches
    expect(mockAuthority.getIDBlock(partition, idNamespace, timeout)).andDelegateTo(new IDAuthority() {

        @Override
        public IDBlock getIDBlock(int partition, int idNamespace, Duration timeout) throws BackendException {
            try {
                Thread.sleep(2000L);
            } catch (InterruptedException e) {
                fail();
            }
            throw new TemporaryBackendException("slow backend");
        }

        @Override
        public List<KeyRange> getLocalIDPartition() throws BackendException {
            throw new IllegalArgumentException();
        }

        @Override
        public void setIDBlockSizer(IDBlockSizer sizer) {
            throw new IllegalArgumentException();
        }

        @Override
        public void close() throws BackendException {
            throw new IllegalArgumentException();
        }

        @Override
        public String getUniqueID() {
            throw new IllegalArgumentException();
        }

        @Override
        public boolean supportsInterruption() {
            return true;
        }
    });
    expect(mockAuthority.getIDBlock(partition, idNamespace, timeout)).andReturn(new IDBlock() {

        @Override
        public long numIds() {
            return 2;
        }

        @Override
        public long getId(long index) {
            return 200;
        }
    });
    expect(mockAuthority.supportsInterruption()).andStubReturn(true);
    ctrl.replay();
    StandardIDPool pool = new StandardIDPool(mockAuthority, partition, idNamespace, Integer.MAX_VALUE, timeout, 0.1);
    try {
        pool.nextID();
        fail();
    } catch (TitanException e) {
    }
    long nextID = pool.nextID();
    assertEquals(200, nextID);
    ctrl.verify();
}

Example 20 with BackendException

use of com.thinkaurelius.titan.diskstorage.BackendException in project titan by thinkaurelius.

the class CassandraThriftStoreManager method getLocalKeyPartition.

@Override
public List<KeyRange> getLocalKeyPartition() throws BackendException {
    CTConnection conn = null;
    IPartitioner partitioner = getCassandraPartitioner();
    if (!(partitioner instanceof AbstractByteOrderedPartitioner))
        throw new UnsupportedOperationException("getLocalKeyPartition() only supported by byte ordered partitioner.");
    Token.TokenFactory tokenFactory = partitioner.getTokenFactory();
    try {
        // Resist the temptation to describe SYSTEM_KS.  It has no ring.
        // Instead, we'll create our own keyspace (or check that it exists), then describe it.
        ensureKeyspaceExists(keySpaceName);
        conn = pool.borrowObject(keySpaceName);
        List<TokenRange> ranges = conn.getClient().describe_ring(keySpaceName);
        List<KeyRange> keyRanges = new ArrayList<KeyRange>(ranges.size());
        for (TokenRange range : ranges) {
            if (!NetworkUtil.hasLocalAddress(range.endpoints))
                continue;
            keyRanges.add(CassandraHelper.transformRange(tokenFactory.fromString(range.start_token), tokenFactory.fromString(range.end_token)));
        }
        return keyRanges;
    } catch (Exception e) {
        throw CassandraThriftKeyColumnValueStore.convertException(e);
    } finally {
        pool.returnObjectUnsafe(keySpaceName, conn);
    }
}