Suppress SQL Queries logging in Entity Framework core - entity-framework

Question

I have a console .net core app that uses entity framework core.
The app uses logging framework to write to file and console:
serviceProvider = new ServiceCollection()
.AddLogging()
.AddDbContext<DataStoreContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")))
.BuildServiceProvider();
//configure console logging
serviceProvider.GetService<ILoggerFactory>()
.AddConsole(LogLevel.Debug)
.AddSerilog();
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Information()
.WriteTo.RollingFile(Path.Combine(Directory.GetCurrentDirectory(), "logs/vcibot-{Date}.txt"))
.WriteTo.RollingFile(Path.Combine(Directory.GetCurrentDirectory(), "logs/vcibot-errors-{Date}.txt"), LogEventLevel.Error)
.CreateLogger();
logger = serviceProvider.GetService<ILoggerFactory>()
.CreateLogger<Program>();
Min Level for file output is set to Information. But with this setup output also contains SQL queries, here is the example:
2017-02-06 10:31:38.282 -08:00 [Information] Executed DbCommand (0ms)
[Parameters=[], CommandType='Text', CommandTimeout='30'] SELECT
[f].[BuildIdentifier], [f].[Branch], [f].[BuildDate],
[f].[StaticAssetSizeInKb] FROM [FileSizesHistoryEntries] AS [f]
Is there a way to disable the SQL queries logging (log them only in Debug log level)

Answer 1

If you're using built-in logger, you can add filter to you ILoggingBuilder in Program.cs.
So, it can look like:
WebHost.CreateDefaultBuilder(args)
// ...
.ConfigureLogging((context, logging) => {
var env = context.HostingEnvironment;
var config = context.Configuration.GetSection("Logging");
// ...
logging.AddConfiguration(config);
logging.AddConsole();
// ...
logging.AddFilter("Microsoft.EntityFrameworkCore.Database.Command", LogLevel.Warning);
})
// ...
.UseStartup<Startup>()
.Build();

Answer 2

Don't know if this is still an active question, but this is my solution, override the minimum level for "Microsoft.EntityFrameworkCore.Database.Command"
Log.Logger = new LoggerConfiguration()
.MinimumLevel.ControlledBy(loggingLevelSwitch)
.MinimumLevel.Override("Microsoft.EntityFrameworkCore.Database.Command", Serilog.Events.LogEventLevel.Warning)
.Enrich.WithProperty("app", environment.ApplicationName)
.Enrich.FromLogContext()
.WriteTo.RollingFile($"./Logs/{environment.ApplicationName}")
.CreateLogger();
you can also have this on the appconfig.json
"Serilog": {
"Using": [ "Serilog.Sinks.Console" ],
"MinimumLevel": {
"Default": "Verbose",
"Override": {
"Microsoft": "Warning",
"Microsoft.EntityFrameworkCore.Database.Command": "Warning"
}
},
"WriteTo": [
{
"Name": "Console",
"Args": {
"outputTemplate": "[{Timestamp:u}] [{Level:u3}] {SourceContext} {Message:lj}{NewLine}{Exception}"
}
},
],
"Enrich": [ "FromLogContext", "WithExceptionDetails" ]
}

Answer 3

Found that if Logging section is modified in following manner i am not see EF logs message related to SQL queries:
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft": "Information",
"Microsoft.Hosting.Lifetime": "Information",
"Microsoft.EntityFrameworkCore.Database.Command": "Warning"
}
}

Answer 4

If you are using the default Logger, in the appsettings.json (or appesttings.Development.json for dev startup) file:
"Logging": {
"LogLevel": {
"Default": "Debug",
"System": "Information",
"Microsoft": "Warning" <----
}
},
Set it to Warning instead of Information.

Answer 5

You want to change your Serilog configuration to set the minimum level for the Microsoft.EntityFrameworkCore.Storage.IRelationalCommandBuilderFactory context to Warning or higher.
You can find the context you need to change by setting the output template to something like [{Timestamp:HH:mm:ss} {SourceContext} [{Level}] {Message}{NewLine}{Exception}. Once you know the context you can set the template back to how it was before.