Question

How can I set name of the worker thread in Quartz.net?

[2009-12-15 08:56:25] [DefaultQuartzScheduler_Worker-1] INFO

I wanted to see some meaningful information in the logs. I tried using JobDetail constructor, but looks like I am wrong.

var job = new JobDetail("n1", null, typeof (MyJob));

Answer 1

Atleast there is no way to set the name of the worker thread. However, I have used %property facility of log4net to produce meaningful thread name in log files

Answer 2

Usually you would be interested in what jobs output (they should have their own loggers) and not interested in the thread.

Do you have a specific case where you need logical names for threads? The threads are pooled and there are no guarantees about which thread gets what kind of job to to process. That s why the thread name usually is usable only for debug purposes to track the things happened in specific thread s life-cycle.

Answer 3

This is a new answer to an old question, but maybe its helpful to someone.

I didn t like the long quartz thread name [DefaultQuartzScheduler_Worker-1] in my log files.

Instead I wanted log4net to show the thread id. Therefor you need to set a property that logs the current thread s id.

I found this class. source
This is a lambda / func way of logging calculated context: log4net context explained

public class Log4NetContextProperty : IFixingRequired
{
    private readonly Func<string> _getValue;

    public Log4NetContextProperty(Func<string> getValue)
    {
        _getValue = getValue;
    }

    public override string ToString()
    {
        return _getValue();
    }

    public object GetFixedObject()
    {
        return ToString();
    }
}

And you have to call it this way in your application start place.

log4net.GlobalContext.Properties["threadId"] = new Log4NetContextProperty(() => Thread.CurrentThread.ManagedThreadId.ToString());

Then in your log4net config adapt the conversionpattern to include the new property. Mine looks like this:

<conversionPattern value="%d{dd.MM.yyyy HH:mm:ss,ffff} %-5level [%property{threadId}] - %message%newline" />

That s it. This way the id of each thread will be determinded at runtime and logged in its own property.

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