Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.

This message typically indicates that a connection to a server or database has timed out before completing a requested operation. This can happen for a number of reasons, including network connectivity issues, server overload, or simply a slow response time. To resolve this issue, you may need to troubleshoot your network connection or reach out to the server administrator for assistance.

相关问题

c# code:public class APPServerContext : DbContext { public readonly string DBAias; public readonly string UserID; public APPServerContext(string dbaias, string userid); public bool IsSqlServer { get; } public DbSet<sysBatchCodeNO> SYS_BATCHCODENO { get; set; } public DbSet<sysListCodeNO> SYS_LISTCODENO { get; set; } public DbSet<SYS_ORGSTRUCTURE> SYS_ORGSTRUCTURE { get; set; } public DbSet<sysPrgWorkbench> SYS_PRGWORKBENCH { get; set; } public DbSet<sysBarCodeNO> SYS_BARCODENO { get; set; } public DbSet<SYS_LOGINUSER> SYS_LOGINUSERS { get; set; } public bool IsMySql { get; } public DbSet<SYS_ENANNOU> SYS_ENANNOUS { get; set; } public bool IsOracle { get; } public DbParameter CreateParameter(string Key, object Value); public override void Dispose(); public string GetDBParName(string parameterName); public Hashtable PBValue(string KeyList); protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder); } using APPServerContext context1 = new APPServerContext(LoginInfo.DBAias, LoginInfo.UserID);await context1.Database.BeginTransactionAsync().ConfigureAwait(false); context1.Database.SqlQuery(exeSqlList[i]); error : Execution Timeout Expired. The timeout period elapsed prior to completion of the operation or the server is not responding. question :APPServerContext does not contain CommandTimeOut. How do I handle this error

You can set the Command Timeout value in the DbContext's configuration options using the "CommandTimeout" property. You can do this either in the OnConfiguring method or when creating a new instance of DbContextOptionsBuilder. Here's an example of setting the Command Timeout value to 60 seconds:

protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
    optionsBuilder.UseSqlServer(connectionString)
        .ConfigureWarnings(warnings => warnings.Throw(RelationalEventId.QueryClientEvaluationWarning))
        .CommandTimeout(60);
}

Alternatively, you can also set the Command Timeout value when executing the SQL query using the "CommandTimeout" property of the DbCommand object. Here's an example:

using APPServerContext context1 = new APPServerContext(LoginInfo.DBAias, LoginInfo.UserID);
await context1.Database.BeginTransactionAsync().ConfigureAwait(false);
var command = context1.Database.GetDbConnection().CreateCommand();
command.CommandText = exeSqlList[i];
command.CommandTimeout = 60;
context1.Database.OpenConnection();
var result = await command.ExecuteNonQueryAsync().ConfigureAwait(false);

This will set the Command Timeout value to 60 seconds for the current SQL query execution.

解决System.InvalidOperationException:“Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.”

这个错误通常是因为连接池中的所有连接都在使用，并且达到了最大连接池大小。您可以通过以下方法来解决此问题：

1. 增加连接池大小：可以通过修改连接字符串中的“Max Pool Size”属性来增加连接池大小。例如，“Max Pool Size=500”。

2. 减少连接占用时间：当连接不再使用时，尽快释放它。使用完毕后，应该关闭连接和释放资源，以便其他请求可以使用连接。

3. 检查数据库性能：如果数据库性能不佳，可能会导致连接池中的连接被长时间占用。您可以优化查询和索引以提高数据库性能。

4. 增加数据库连接：如果您的应用程序需要处理大量的并发请求，可以考虑使用数据库集群或增加数据库连接数。

希望这些解决方法能够帮助您解决此问题。