Re: which version to consider "stable?"

[Howard Chu <hyc@symas.com>]

John Madden wrote:
> > 2.3.16/bdb has now run here for more than 24 hours without a failure, so it's at
> > the very least a whole lot better than 2.3.11 was.  (This is on Linux 2.6, bdb
> > 4.2, 100,000+ objects, ~4 million operations a day.)
> >     
>
> And just hours after sending this, slapd hung.  This behavior's different than
> what I had been seeing before: slapd hangs at 100% cpu usage, eventually refusing
> new clients.
>
> At loglevel 256, nothing of any use is revealed.  Is there some level I can safely
> turn on to help debug this problem?  Will the upgrade to 2.3.17 help?
>
> I'm using the default thread count and I noticed that at higher thread levels,
> this CPU situation would happen sometimes within a couple of hours.  Should I go
> even lower than 16, or is this another Linux-2.6 issue where I should consider
> using 2.4 instead?

There's not enough info here to tell. Attach with gdb and get a trace of 
all the threads.

--
 -- Howard Chu
 Chief Architect, Symas Corp.  http://www.symas.com
 Director, Highland Sun        http://highlandsun.com/hyc
 OpenLDAP Core Team            http://www.openldap.org/project/