正确理解SQL Server配置timeout相关选项

发布时间:2020-07-25 16:35:03 作者:UltraSQL
来源:网络 阅读:8576

正确理解SQL Server配置选项“remote login timeout”和“remote query timeout



查看配置选项的设置

sp_configure

正确理解SQL Server配置timeout相关选项

 

远程登录超时


参考:https://msdn.microsoft.com/en-us/library/ms175136.aspx


“The remote login timeout option specifies the number of seconds to wait before returning from a failed attempt to log in to a remote server. For example, if you are trying to log in to a remote server and that server is down, remote login timeout helps make sure that you do not have to wait indefinitely before your computer stops trying to log in. The default value for this option is 10 seconds. A value of 0 allows for an infinite wait.

The default value for this option is 20 seconds in SQL Server 2008.

The remote login timeout option affects connections to OLE DB providers made for heterogeneous queries.

The setting takes effect immediately without restarting the server.”

正确理解SQL Server配置timeout相关选项

EXEC sp_configure 'remote login timeout', 35 ;
GO
RECONFIGURE ;
GO

 

远程查询超时


参考:https://msdn.microsoft.com/en-us/library/ms189040.aspx


“The remote query timeout option specifies how long, in seconds, a remote operation can take before SQL Server times out. The default value for this option is 600, which allows a 10-minute wait. This value applies to an outgoing connection initiated by the Database Engine as a remote query. This value has no effect on queries received by the Database Engine. To disable the time-out, set the value to 0. A query will wait until it is canceled.

For heterogeneous queries, remote query timeout specifies the number of seconds (initialized in the command object using the DBPROP_COMMANDTIMEOUT rowset property) that a remote provider should wait for result sets before the query times out. This value is also used to set DBPROP_GENERALTIMEOUT if supported by the remote provider. This will cause any other operations to time out after the specified number of seconds.

For remote stored procedures, remote query timeout specifies the number of seconds that must elapse after sending a remote EXEC statement before the remote stored procedure times out.

The setting takes effect immediately without restarting the server.

EXEC sp_configure 'remote query timeout', 0 ;
GO
RECONFIGURE ;
GO

 

远程服务器和链接服务器的对应选项


参考:https://msdn.microsoft.com/en-us/library/ms178532.aspx

sp_serveroption [@server = ] 'server'
,[@optname = ] 'option_name'
,[@optvalue = ] 'option_value' ;


connect timeout

Time-out valuein seconds for connecting to a linked server.            
If 0, use the sp_configure default.

query timeout

Time-out value for queries against a linked server.            
If 0, use the sp_configure default.



我只简单解释一句,这几个选项只是针对“outgoing connections

推荐阅读:
  1. SQL Server 2017 AlwaysOn on Linux 配置和维护(9)
  2. T-SQL中常用的set语句

免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。

remote login timeout

上一篇:Linux/Centos7系统管理之深入理解Linux文件系统与日志分析

下一篇:批量开通邮箱后邮箱显示乱码问题

相关阅读

您好,登录后才能下订单哦!

密码登录
登录注册
其他方式登录
点击 登录注册 即表示同意《亿速云用户服务条款》