@Override
  public TSchemaPartitionTableResp getOrCreateSchemaPartitionTable(final TSchemaPartitionReq req) {
    return configManager.getOrCreateSchemaPartition(
        PathPatternTree.deserialize(ByteBuffer.wrap(req.getPathPatternTree())));
  }
ConfigNodeRPCServer exposes the interface that interacts with the DataNode
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessor.java