public async Task DeleteDataAsync()

in src/Apache.IoTDB/SessionPool.cs [600:649]
43 lines of code
5 McCabe index (conditional complexity)

        public async Task<int> DeleteDataAsync(List<string> tsPathLst, long startTime, long endTime)
        {
            var client = _clients.Take();
            var req = new TSDeleteDataReq(client.SessionId, tsPathLst, startTime, endTime);

            try
            {
                var status = await client.ServiceClient.deleteDataAsync(req);

                if (_debugMode)
                {
                    _logger.LogInformation(
                        "delete data from {0}, server message is {1}",
                        tsPathLst,
                        status.Message);
                }

                return _utilFunctions.VerifySuccess(status, SuccessCode, RedirectRecommendCode);

            }
            catch (TException e)
            {
                await Open(_enableRpcCompression);
                client = _clients.Take();
                req.SessionId = client.SessionId;
                try
                {
                    var status = await client.ServiceClient.deleteDataAsync(req);

                    if (_debugMode)
                    {
                        _logger.LogInformation(
                            "delete data from {0}, server message is {1}",
                            tsPathLst,
                            status.Message);
                    }

                    return _utilFunctions.VerifySuccess(status, SuccessCode, RedirectRecommendCode);

                }
                catch (TException ex)
                {
                    throw new TException("Error occurs when deleting data", ex);
                }
            }
            finally
            {
                _clients.Add(client);
            }
        }