Select(g => g.OrderBy(gi => gi.Plan_Number).First()) But () 180.So, am I not creating the command object properly I would imagine the preferred method is something like: (query) or (query), but the problem is that the query results cannot be mapped to MyEntity and I need the results of the query not just the of. Select first from each group to get unique details Group promotions By Plan Number ('Promotion ID') I want to set command timeout for query execution, currently I am doing 90 but i feel this is not working, I tried checking the process logs in database but found the time difference was always less than 90sec. Query = query.Where(q => q.Start_Date >= inputStartDate) I checked the previous run against 1 Mio rows again and it takes actual 10 seconds. rows and it took 124 seconds to execute the statement.
#.NET LINQ EF INCREASE DB COMMAND TIMEOUT CODE#
filter promotion results that don't match Promotion Start Date We did not close the application I did run the sample code migration again against 10.7 Mio. Query = query.Where(q => q.Store_Number = inputStoreNum)
#.NET LINQ EF INCREASE DB COMMAND TIMEOUT HOW TO#
2019 How to set database connection timeout in c Where is command. filter promotion results that don't match Store Num Solved-how to set the query timeout from SQL connection string-C WebSave the. Query = query.Where(q => q.Sku_Number = inputSKU) filter promotion results that don't match SKU# Var query = db.vw_Web_Promotion.AsQueryable() Using (DWH_Entities db = new DWH_Entities()) 1 I've attempted to modify my connection string to include an extended timeout and I've confirmed that on the sql server side the view that feeds my EF Object executes within seconds and returns a total of 3000 or less records. Log.Info("Client requested QueryPromotion") Private List QueryPromotion(int? inputSKU, int? inputStoreNum, DateTime? inputStartDate) ToListAsync (new CancellationTokenSource (TimeSpan.FromSeconds (60)). Var qUniqueOffers = query.GroupBy(q => q.Plan_Number).ToList() If you want to limit the time of the whole operation, consider combining the command timeout setting with the async cancellation support, for instance inside async method var listOfEntities await dbContext.MyLargeSetOfEntities. If there is a more efficient way please let me know.Īnd it hangs at, because it skips all the conditional bits: Let's say for 1 request (default Scoped context lifetime) Change this before long running query: Context. I've included the Method I use to acquire the desired data. If you would like a temporary increase timeout only for one Context instance. which I cannot figure out how to use in this situation. Most solutions I find on the specific error recommend connection string modifications OR something along. The timeout period elapsed prior to completion of the operation or the server is not responding." You may find it helpful to keep the default timeout for most queries and catch the error to give you insight into database problems.I've attempted to modify my connection string to include an extended timeout and I've confirmed that on the sql server side the view that feeds my EF Object executes within seconds and returns a total of 3000 or less records.īUT when I attempt to run it via code I am now running into Timeout issues and I was seeking some advice to fix this issue.
To keep from having to put this code in every query, you could call it when you instantiate the dbContext. If you are using ObjectContext, you can do without the adapter, like this: I’m not sure why Microsoft didn’t keep the simpler syntax from the older version of ObjectContext for dbContext. This line of code moves you down from dbContext to the underlying ObjectContext to make the change. Of course, you can use any number of seconds you need. ((IObjectContextAdapter)Context).ObjectContext.CommandTimeout = 180 I am getting timeouts using the Entity Framework (EF) when using a function import that takes over 30 seconds to complete. This will work if you remove the conflicting value from the connection string. Remove the value from the connection string and set it on the data context object itself. If you are using dbContext, the solution to this is to add the following code before your query to set the timeout to a longer value: There is a known bug with specifying default command timeout within the EF connection string. If its more than that it keeps retrying and you never get to see the result. If your query runs longer than that, you are going to get the error above. Note: EF Core will only execute the query with less than 100 seconds time. The timeout period elapsed prior to completion of the operation or the server is not responding.”Īs near as I can find, the default timeout for EF queries using the SQL Server 2008 connection provider is 30 seconds. You have a long running Entity Framework query that often creates a “” with the message “Timeout expired.
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