public GetSeriesSlotListResp getSeriesSlotList(TGetSeriesSlotListReq req) {
    GetSeriesSlotListPlan plan = new GetSeriesSlotListPlan(req.getDatabase(), req.getType());
    try {
      return (GetSeriesSlotListResp) getConsensusManager().read(plan);
    } catch (ConsensusException e) {
      LOGGER.warn(CONSENSUS_READ_ERROR, e);
      TSStatus res = new TSStatus(TSStatusCode.EXECUTE_STATEMENT_ERROR.getStatusCode());
      res.setMessage(e.getMessage());
      return new GetSeriesSlotListResp(res, Collections.emptyList());
    }
  }
Check if the specified RegionGroup exists.

@param regionGroupId The specified RegionGroup
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/partition/PartitionManager.java