I'm working on asp.net web application, this application interacts with sql server Database through WCF Service. I get the following Exception sometimes but not every time.
System.Data.SqlClient.SqlException (0x80131904): Timeout expired.
The timeout period elapsed prior to completion of the operation or the server is not responding.
This failure occured while attempting to connect to the Principle server.
---> System.ComponentModel.Win32Exception (0x80004005):
The wait operation timed out
I know there are multiple reasons for this. There's a deadlock somewhere or The query is too complex.
At some place I have read that setting CommandTimeout of SqlCommand object can solve this issue.
So before applying this logic I want to know the strong reason of this issue and If there is any other workaround to be done to get rid of this issue please let me know. If I'm missing anything please let me know.
Related
I have a web app which has been added as a reference to my window service app. The service will call a method in the web app which then will invoke the database to run a stored procedure.
I received an exception while calling one of my store proc. The stored procedure will approximately run for 45 seconds. Below is the error
System.Data.SqlClient.SqlException (0x80131904): Execution Timeout
Expired. The timeout period elapsed prior to completion of the
operation or the server is not responding. --->
System.ComponentModel.Win32Exception (0x80004005): The wait operation
timed out
I have tried to increase the service app timeout by appending ';Connection Timeout=3600' to the service app conn string in web.config but the exception still occurred after around 30 seconds of running.
Your help to resolve this issue will be greatly appreciated.
To elaborate on #Squirrel comment:
Your error message shows a System.Data.SqlClient.SqlException. So the timeout is on SQL Server side.
So if you want to increase the timeout, it must be done on the SQL Server side.
In the System.Data.SqlClient namespace you seem to use, the SqlCommand class that you probably use to call your stored procedure has a property CommandTimeout that let you set the timeout value.
See the documentation
CommandTimeout
Gets or sets the wait time (in seconds) before
terminating the attempt to execute a command and generating an error.
My C# application is currently throwing lots of the below exceptions:
Timeout expired. The timeout period elapsed prior to completion of
the operation or the server is not responding. This failure occurred
while attempting to connect to the routing destination.
I am using linq queries and NHibernate.
I am having difficulty troubleshooting this as the exception does not occur every time the query is ran. If I take the query and run it directly on SSMS it seems to run very quickly.
The timeout exceptions only appear to occur when ran against one table in the database.
I know I am able to increase the query timeout but I would like to resolve the root cause of the issue. I have a limited knowledge in troubleshooting these issues so what are the next steps I need to take to determine what the problem is?
Increase 'Connect Timeout' of your connection string. 60 is a good number.
In my application, queries are working fine.
For a single select query, i am getting below error.
System.Data.EntityException: The underlying provider failed on Open.
---> System.Data.SqlClient.SqlException: Connection Timeout Expired. The timeout period elapsed during the post-login phase. The
connection could have timed out while waiting for server to complete
the login process and respond; Or it could have timed out while
attempting to create multiple active connections. The duration spent
while attempting to connect to this server was - [Pre-Login]
initialization=0; handshake=13914; [Login] initialization=0;
authentication=0; [Post-Login] complete=1062; --->
System.ComponentModel.Win32Exception: The wait operation timed out
I have ran sqlprofiler for detecting deadlocks but found none.
I am running simple query through entity framework
Any help would be appreciated
Here in stack overflow, there is a post called Help troubleshooting SqlException: Timeout expired on connection, in a non-load situation. It is a problem very similar to your problem. Please take a look.
I will quote (from that post) a comment as a possible cause of your problem:
"Not Enough Memory"
"You may have 'Auto Close' enabled"
"SQL Agent Jobs may be causing problems"
In that post you can see a very good explanation about the topic.
Maybe you forgot to .Close your connection before.
that's why: Or it could have timed out while attempting to create multiple active connections.
(I cant comment for now due to my reputation, dont take this as a full answer)
This looks like a problem with the Active Directory. Maybe a port is blocked (for example 135), so a timeout occurred.
Timeout expired. The timeout period elapsed prior to completion of the
operation or the server is not responding.
I am getting this error in my project. Project is working fine for more than 2 years without this error. Now i am getting this error frequently.
What could be the reason for this? I have closed each and every opened connection. Is there any setting in SQL Server 2005 to avoid this issue? Or this problem is caused by network availability?
It could be due to network availability, but I had this problem some month ago.
In my case TCP/TP and share memory setting had changed in SQL Server Configuration Management.
Please check your SQL Server Configuration Management settings.
Today i have faced the same issue. So i collected all the logs.
In sql logs i got this error :
"Autogrow of file 'SSPB_log' in database 'SSPB' was cancelled by user or timed out after 30124 milliseconds. Use ALTER DATABASE to set a smaller FILEGROWTH value for this file or to explicitly set a new file size."
In my application logs I got this:
"Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding."
Does this errors related to each other??
Logging:System.Data.SqlClient.SqlException: Timeout expired. The
timeout period elapsed prior to completion of the operation or the
server is not responding.
i am a beginner when i saw in the application log files the above is the most frequent error i saw and also it is getting repeated everyday. on the database when i saw time taken for executing the particular procedure which the above function is calling is less than 5 secs.
But in the application we gave connection timeout=200s and by default command timeout=30 secs our manager says we don't have to increase the command timeout by anymore further as it is true. But still the exception is keep coming.
can anyone suggest me any solution so i can get rid of the above problem thanks
The setting in the web config, if it's the timeout in the connection string setting, is the connection timeout. It only applies to the time it takes to make a connection. From your problem description, it doesn't sound like a connection timeout is what's happening.
Command timeouts are specified in other ways. If you are using DataContext, for example, the timeout is set using the CommandTimeout property.
http://msdn.microsoft.com/en-us/library/system.data.linq.datacontext.commandtimeout.aspx
If you can give a code snippet of how you are hitting the database so we can see what classes you are using, more specific recommendations can be made.