超时已过。 在操作完成之前超时时间已过或服务器未响应 Azure SQL 数据库

Question

我在此实现中使用 asp.net 核心 3.1、ADO.NET、Azure SQL 数据库。 在这种情况下，使用存储过程对服务层 -> 数据库层进行 api 调用。

Azure SQL 定价说明：

通用：Gen5、8 个 vCore

代码如下：

public dynamic GetData(FiltersDto reportFilters, long typeid)
{
    List<DashboardDTO> result = new List<DashboardDTO>();
    DataSet ds = new DataSet();
    using (var connection = new SqlConnection(_objDBContext.Database.GetDbConnection().ConnectionString))
    {
        connection.Open();
        using (SqlCommand command = new SqlCommand())
        {
            command.Connection = connection;
            command.CommandType = CommandType.StoredProcedure;
            command.CommandText = "[TT].[LoadDashboard]";
            command.Parameters.Add(new SqlParameter("@ReviewYear", SqlDbType.BigInt)
            {Value = reportFilters.ReviewYear});
            command.Parameters.Add(new SqlParameter("@Region", SqlDbType.Structured)
            {Value = GetTable<int>(reportFilters.Region)});
            command.Parameters.Add(new SqlParameter("@TypeId", typeid));
            using (var sda = new SqlDataAdapter())
            {
                sda.SelectCommand = command;
                sda.Fill(ds);
            }
        }

        connection.Close();
    }

    if (ds.Tables.Count > 0)
    {
        foreach (DataRow row in ds.Tables[0].Rows)
        {
            // Logic to read and set the data
            DashboardDTO dashboard = new dashboardDTO
            {
              // Fill the dto with data
            }result.Add(dashboard);
        }
    }

    return result;
}

我从 asp.net 核心 web api 调用上述方法并收到以下错误：

{
    "header": "An unhandled error occurred.",
    "type": "SqlException",
    "errorcode": 10002,
    "message": "Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.",
    "innerExcepioin": "The wait operation timed out.",
    "stackTrace": "   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)\r\n   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)\r\n   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)\r\n   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)\r\n   at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()\r\n   at System.Data.SqlClient.SqlDataReader.get_MetaData()\r\n   at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)\r\n   at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)\r\n   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite, String method)\r\n   at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior)\r\n   at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)\r\n   at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)\r\n   at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)\r\n   at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)\r\n   at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet)\r\n"
}

我还发现平均需要 31.37s 才能得到上述错误。

谁能帮我解决这个问题的指导

Answer 1

您正在达到 30 秒的默认命令超时。

您正在运行的存储过程比执行该过程花费的时间更长。 所以驱动程序放弃了它的执行。

您可以设置自己的命令超时： https://learn.microsoft.com/en-us/do.net/api/system.data.sqlclient.sqlcommand.commandtimeout?view=do.net-plat-ext-6.0

command.CommandTimeout = 60; // For 60 seconds for example

您还可以检查存储过程以查看是否可以加快速度。