If modifying the source code of EF it would be relatively easy to add this feature. You are clearly free to suggest it as feature in the efcore github. If you want something pre-packaged the response is no, there is nothing. If you are interested, the DbCommand is created in (). It seems to be difficult to add informations during query building and letting the interceptor know about this information) This is complex and I'm not sure that there are good solutions (I think there are various ugly solutions. The problem cleary is setting the timeout you want and passing this information to the interceptor. When the interceptor is run the DbCommand command has already the standard Timeout set and you can change it. Put where you configure your DBContext is probably the best place. The CommandTimeout parameter is a nullable integer that set timeout values as seconds, if you set null or dont set it will use default value of provider you. loopback not set, keepalive set (10 sec) ARP type: ARPA, ARP Timeout. AddInterceptors(new M圜ommandInterceptor()) In the example, we also specifically included a command to put any unmatched. Notice that this setting doesnt control command. Return base.ReaderExecuting(command, eventData, result) The current value of this property is null which means that the current command timeout is the default value of the underlying provider. After exactly 5 seconds, this error message will strike: Msg -2, Level 11, State 0, Line 0 Timeout expired. Every 30 secs, you would get SqlException due to timeout. Public override InterceptionResult ReaderExecuting(DbCommand command, CommandEventData eventData, InterceptionResult result) For certain async methods SqlCommand.CommandTimeout property is ignored according to docs here EF Core makes repeated calls due to retrying execution strategy. For example for LINQ queries a public class M圜ommandInterceptor : DbCommandInterceptor There are some "insertion points" we could call where you could inject something to modify the SetCommandTimeout for a single query. I've debugged a little the code of EF Core (it is quite easy with VS 2019, by letting it load the symbols from the nuget server or by forcing it to decompile to source code). That discover types that implement the interface.As I've said in my comment, it isn't something I think is necessary or really really useful. How arguments can be passed to this method via the various design-time tools Parameter on the CreateDbContext method is not currently It should be noted at this stage that the string args Return new SampleContext(optionsBuilder.Options) įinally, you must ensure that your context has a constructor that takes aĭbContextOptions object as a parameter: public SampleContext(DbContextOptions options) : base (options) The default value of zero (0) means pooled connections will never incur a. Opts => opts.CommandTimeout(( int )TimeSpan.FromMinutes(10).TotalSeconds) ef core connection timeout The CommandTimeout parameter is measured in seconds. Cancellation Timeout, The time to wait (in milliseconds) while trying to read a response for a cancellation. Public SampleContext CreateDbContext( string args) 1 uses CommandTimeout, 0 means no timeout. Specified for the runtime version of the context: public class SampleContextFactory : IDesignTimeDbContextFactory Minutes, as opposed to the default 30 seconds, or whatever value has been Override the creation of SampleContext, specifying a command timeout value of 10 The following example illustrates the use of IDesignTimeDbContextFactory to As such, it provides a hook for overriding the construction of You to configure the context in a different manner to the way it is configuredįor runtime use. If one exists, it is instantiated and its CreateDbContext method is called which returns the derived The tools are configured to search the assembly containing theĭbContext (or the one designated as the startup assembly) for a type that This interface is only intended for use with design time tools such as This (and other) problems associated with configuring DbContext objectsĭifferently for certain design-time tasks, such as migrations. The IDesignTimeDbContextFactory was introduced in EF Core 2.0 to alleviate Prior to version 2.0 of EF Core, your options were limited to changing the command timeout for the DbContext, running the migration and then resetting the timeout value (or not): public SampleContext()ĭatabase.SetCommandTimeout(( int )TimeSpan.FromMinutes(5).TotalSeconds)
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