Examples with NodeGroup org.apache.asterix.metadata.entities.NodeGroup used on opensource projects

Example 6 with NodeGroup

use of org.apache.asterix.metadata.entities.NodeGroup in project asterixdb by apache.

the class MetadataManagerUtil method findNodeDomain.

public static INodeDomain findNodeDomain(MetadataTransactionContext mdTxnCtx, String nodeGroupName) throws AlgebricksException {
    NodeGroup nodeGroup = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, nodeGroupName);
    List<String> partitions = new ArrayList<>();
    for (String location : nodeGroup.getNodeNames()) {
        int numPartitions = ClusterStateManager.INSTANCE.getNodePartitionsCount(location);
        for (int i = 0; i < numPartitions; i++) {
            partitions.add(location);
        }
    }
    return new DefaultNodeGroupDomain(partitions);
}

Example 7 with NodeGroup

use of org.apache.asterix.metadata.entities.NodeGroup in project asterixdb by apache.

the class MetadataNode method getNodeGroup.

@Override
public NodeGroup getNodeGroup(JobId jobId, String nodeGroupName) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createTuple(nodeGroupName);
        NodeGroupTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getNodeGroupTupleTranslator(false);
        IValueExtractor<NodeGroup> valueExtractor = new MetadataEntityValueExtractor<>(tupleReaderWriter);
        List<NodeGroup> results = new ArrayList<>();
        searchIndex(jobId, MetadataPrimaryIndexes.NODEGROUP_DATASET, searchKey, valueExtractor, results);
        if (results.isEmpty()) {
            return null;
        }
        return results.get(0);
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
}

Example 8 with NodeGroup

use of org.apache.asterix.metadata.entities.NodeGroup in project asterixdb by apache.

the class MetadataTransactionContext method dropNodeGroup.

public void dropNodeGroup(String nodeGroupName) {
    NodeGroup nodeGroup = new NodeGroup(nodeGroupName, null);
    droppedCache.addNodeGroupIfNotExists(nodeGroup);
    logAndApply(new MetadataLogicalOperation(nodeGroup, false));
}

Example 9 with NodeGroup

use of org.apache.asterix.metadata.entities.NodeGroup in project asterixdb by apache.

the class NodeGroupTupleTranslator method getMetadataEntityFromTuple.

@Override
public NodeGroup getMetadataEntityFromTuple(ITupleReference frameTuple) throws HyracksDataException {
    byte[] serRecord = frameTuple.getFieldData(NODEGROUP_PAYLOAD_TUPLE_FIELD_INDEX);
    int recordStartOffset = frameTuple.getFieldStart(NODEGROUP_PAYLOAD_TUPLE_FIELD_INDEX);
    int recordLength = frameTuple.getFieldLength(NODEGROUP_PAYLOAD_TUPLE_FIELD_INDEX);
    ByteArrayInputStream stream = new ByteArrayInputStream(serRecord, recordStartOffset, recordLength);
    DataInput in = new DataInputStream(stream);
    ARecord nodeGroupRecord = recordSerDes.deserialize(in);
    String gpName = ((AString) nodeGroupRecord.getValueByPos(MetadataRecordTypes.NODEGROUP_ARECORD_GROUPNAME_FIELD_INDEX)).getStringValue();
    IACursor cursor = ((AUnorderedList) nodeGroupRecord.getValueByPos(MetadataRecordTypes.NODEGROUP_ARECORD_NODENAMES_FIELD_INDEX)).getCursor();
    List<String> nodeNames = new ArrayList<>();
    while (cursor.next()) {
        nodeNames.add(((AString) cursor.get()).getStringValue());
    }
    return new NodeGroup(gpName, nodeNames);
}