[Backgroundrb-devel] can a worker commit suicide?

Erik Morton eimorton at gmail.com
Mon Oct 23 20:26:10 EDT 2006


I recommend closing the connection on the ActiveRecord instance in  
the worker. In past versions of BackgroundRB those connections were  
never closed. To check on open connections execute show processlist;


On Oct 23, 2006, at 6:20 PM, Bill Walton wrote:

> Thank you, Michael.  I'm only disconnecting that particular worker,  
> right?  It looks like it, since I can restart the app (browse to it  
> again) and everything looks to work ok.  But I thought I'd ask.   
> Also, is there any way to tell how many workers are running?  I'm  
> on Windows XP and all I can see with Task Mgr. is a ruby.exe  
> process for BackgrounDRb.
>
> Thanks again,
> Bill
> ----- Original Message -----
> From: Michael D'Auria
> To: Bill Walton
> Cc: Eden Li ; BackgroundRb
> Sent: Monday, October 23, 2006 3:28 PM
> Subject: Re: [Backgroundrb-devel] can a worker commit suicide?
>
> You can have the worker delete itself, just make sure you call  
> ActiveRecord::Base.connection.disconect! first:
>
> ActiveRecord::Base.connection.disconect!
> ::BackgrounDRb::MiddleMan.instance.delete_worker @_job_key
>
> That shoudl ensure the db connection has been closed and delete the  
> instance of the current worker
>
>
> On 10/23/06, Bill Walton <bill.walton at charter.net> wrote: Hi Eden,
>
> Eden Li wrote:
>
> > ... you can specify a :ttl(time to live) in seconds and your  
> worker will
> > get killed after those seconds run out.
>
> I'm using BackgrounDRb to monitor session activity and deleting  
> user entered
> data in the database when their session times out.  Every time they do
> something, their time-til-timeout gets reset.  There's no notion of  
> a max
> time.  As long as they keep using the app, their session stays alive.
>
> I was wondering if there's a way, inside the worker, to do the  
> equivalent
> of:
> MiddleMan.delete_worker(session[:job_key])
>
> Thanks,
> Bill
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