Winbindd in HEAD: cannot deal with 15,000 users+

[David Shapiro]

How do you set the panic action = /bin/sleep...?

Is that a linux only thing?

David

-----Original Message-----
From: abartlet at samba.org [mailto:abartlet at samba.org]
Sent: Tuesday, April 02, 2002 12:33 AM
To: Mike Papper
Cc: samba-technical at samba.org; tridge at samba.org
Subject: Re: Winbindd in HEAD: cannot deal with 15,000 users+


On Mon, Apr 01, 2002 at 03:49:05PM -0800, Mike Papper wrote:
> I have run the latest winbindd from the samba-3.0-alpha17 branch. I ran it

> for the past 4 days and all went well. However, in the following
situation, 
> it breaks down... If I have 15,000 users, its OK UNTIL I add or delete a
user 
> from the set of 15,000 users on the PDC. It seems like any update to the
PDC 
> causes winbbind to fetch all the info from the PDC (and not just the 
> updates). This seems to make winbind crash. When I bring winbind back up,
it 
> runs OK until I once again add or remove a user from the PDC.

The RPC protocols are not spectacular in this area - so often we need to 
refetch the lot :-(

> I am using NT 4 service pack 5 as the PDC. Any thoughts on why this could
be 
> happening? Or thoughts on what this debug output is saying?
> 
> Also, I did send a bug report to samba at samba.org as suggested in the
release 
> docs). Will this bug report get into the right hands?

Could you set 'panic action = /bin/sleep 9000' and attach a debugger to the 
dead winbindd?  Or start it as winbindd -i inside gdb?

Grab a 'bt full' and post that to the list and we will have a much better
chance of finding the bug.  Recompiling --enable-debug will put some more
info
in the backtrace.

Also check out the very latest HEAD CVS (assuming you are running from a
alpha
tarball) and double-check.  

Thanks,

Andrew Bartlett