[OpenAFS-devel] token/pag cleanup on i386_linux*

[Neulinger, Nathan]

I don't know. 

The hpux version is poorly done and assumes a generally interactive box with
no jobs running by a user after the user has logged off.

The linux version is able to determine if any processes are running in a
particular pag by checking aux groups. If the solaris /proc has this
information, then you might be able to get it modified to work on solaris,
although I think that on solaris, the gcpags stuff is already running, but I
don't remember for certain.

The easy way to tell if it's needed - do a 'kdump -users' and look at the
number at the end. If it seems large compared to the number of users logged
on, then the problem exists.

-- Nathan

> -----Original Message-----
> From: Johan Hedin [mailto:johan@ecare.se]
> Sent: Monday, June 11, 2001 10:39 AM
> To: Neulinger, Nathan
> Subject: Re: [OpenAFS-devel] token/pag cleanup on i386_linux*
> 
> 
> Hi
> 
> Could this script be run on Solaris? If so, I like to have a copy to
> implement on my former job at KTH (cell alfvenlab.kth.se).
> 
> Best Regards
> 
> Johan Hedin
> 
> On Mon, 11 Jun 2001, Neulinger, Nathan wrote:
> 
> > On my heavy-authentication-activity clients, I have to run 
> a token cleanup
> > script that gets rid of tokens for processes that have gone 
> away/etc. It's
> > my understanding that the GCPAGS code does this 
> automatically. What is
> > preventing this from being enabled on linux?
> >
> > (If anyone wants the script, I'll be happy to send it to 
> you, it uses a
> > combination of processing kdump output and examining 
> auxgroup membershup
> > from /proc.)
> >
> > If you don't run this, and you have a server that does a 
> lot of token
> > activity, you get into a situation where the afs_users 
> structure in the
> > kernel is HUGE and very very very slow, which impacts 
> everything on the
> > machine. I'm running scripts to handle this on hpux 
> (poorly) and linux.
> >
> > -- Nathan
> >
> > ------------------------------------------------------------
> > Nathan Neulinger                       EMail:  nneul@umr.edu
> > University of Missouri - Rolla         Phone: (573) 341-4841
> > Computing Services                       Fax: (573) 341-4216
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> >
>