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

David Shapiro David.Edward.Shapiro at
Tue Apr 2 05:09:02 GMT 2002

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

Is that a linux only thing?


-----Original Message-----
From: abartlet at [mailto:abartlet at]
Sent: Tuesday, April 02, 2002 12:33 AM
To: Mike Papper
Cc: samba-technical at; tridge at
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
> it breaks down... If I have 15,000 users, its OK UNTIL I add or delete a
> from the set of 15,000 users on the PDC. It seems like any update to the
> 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,
> 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
> happening? Or thoughts on what this debug output is saying?
> Also, I did send a bug report to samba at as suggested in the
> 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
in the backtrace.

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


Andrew Bartlett

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