Question

System.Data;超时已过期。从池中获取连接之前经过的超时时间。这可能是因为所有池连接都在使用中并且达到了最大池大小。只有当我运行服务

时才会出现此错误

我正在使用以下代码

try
{
    LogGenerator.WriteErrorLog("Conn opened before");
    if (con.State == System.Data.ConnectionState.Closed)
    con.Open();
    LogGenerator.WriteErrorLog("Conn opened");
    // Set up a command with the given query and associate
    // this with the current connection.
    SqlCommand cmd = new SqlCommand("Backup database " + DBName + " to disk='" + filePathExist + "'", con);
    cmd.ExecuteNonQuery();
    LogGenerator.WriteErrorLog("query executed");
}
catch(Exception ex)
{
    LogGenerator.WriteErrorLog("Error in Conn");
    LogGenerator.WriteErrorLog(ex);
}
finally
{
    con.Close();
    con.Dispose();
    SqlConnection.ClearPool(con);
}

Answer 1

当您尝试进行数据库备份时，它将需要超过默认连接时间，因此请尝试将超时设置为您的命令。

try
{    
    if (con.State == System.Data.ConnectionState.Closed)
      con.Open();    
// Set up a command with the given query and associate
// this with the current connection.
   SqlCommand cmd = new SqlCommand("Backup database " + DBName + " to disk='" + 
   filePathExist + "'", con);
   cmd.CommandTimeout = 60;
   cmd.ExecuteNonQuery();    
}    
catch(Exception ex)
{
   //handle exception here
}
finally
{
    con.Close();
    con.Dispose();
    SqlConnection.ClearPool(con);
}

有关超时的更多信息，请参阅此处。 https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlcommand.commandtimeout(v=vs.110).aspx

https://docs.microsoft.com/en-us/sql/database-engine/configure-windows/configure-the-remote-login-timeout-server-configuration-option

我收到Timeout过期错误

1 个答案: