Maximum Session IDs

[Chris Tooley]

Ok, I'll give the sessionid.tdb delete a try.  Unfortunately with the
terrible performance we've been getting out of Samba, I can't turn up
the log levels in any rational way as network performance just becomes
completely unbearable.  I'm sitting at debug level = 0 and log level = 2
and things are crawling.  When I go to debug 1 and log 2 or debug 0 and
log 3 things just slow to a crawl and going to log level 5 makes the
machines time out trying to request a login.

Chris Tooley

On Wed, 2001-12-05 at 15:09, Andrew Bartlett wrote:
> Chris Tooley wrote:
> > 
> > On Wed, 2001-12-05 at 06:30, Andrew Bartlett wrote:
> > > Chris Tooley wrote:
> > > >
> > > > On Mon, 2001-12-03 at 15:23, Andrew Bartlett wrote:
> > > > > Chris Tooley wrote:
> > > > > >
> > > > > > Sorry forgot the subject, Evolution dumped on me in the middle of composing the first time round.
> > > > > >
> > > > > > I'm getting the following errors.  How do I get rid of the max on
> > > > > > session IDs?
> > > > > >
> > > > > > [2001/12/03 09:11:00, 1] smbd/session.c:session_claim(88)
> > > > > >   session_claim: out of session IDs (max is 3000)
> > > > > > [2001/12/03 09:11:00, 1] smbd/password.c:register_vuid(316)
> > > > > >   Failed to claim session for vuid=100
> > > > > > [2001/12/03 09:11:51, 2] smbd/reply.c:reply_sesssetup_and_X(980)
> > > > > >   Defaulting to Lanman password for tlowke
> > > > > > [2001/12/03 09:11:51, 1] smbd/session.c:session_claim(88)
> > > > > >   session_claim: out of session IDs (max is 3000)
> > > > > > [2001/12/03 09:11:52, 1] smbd/password.c:register_vuid(316)
> > > > > >   Failed to claim session for vuid=100
> > > > > > [2001/12/03 09:11:52, 2] smbd/server.c:exit_server(458)
> > > > > >   Closing connections
> > > > > >
> > > > > > I'm running samba 2.2.2 on RedHat 6.2 with kernel 2.2.19.  I've
> > > > > > restarted samba and that seems to have fixed the problem temporarily.
> > > > >
> > > > > OK, do you really have 3000 users logged into your server?
> > > >
> > > > No, more like about 30.  It's happening about every 3 or 4 hours though.
> > > >
> > > > >
> > > > > If not, we have a bug in there somehwere...
> > > > >
> > > > Crap, this just started happening, and it's going to severely hamper my
> > > > job.
> > > >
> > > > Thanks for looking into it.  Let me know what you need.
> > >
> > > This smells like TDB corruption.
> > >
> > > We increment the counter until we get a number that we can correctly
> > > store.  So, if nothing can be stored at all, then you get that error.
> > >
> > > Check your disk space for the samba locks directory.
> > It's installed as a RedHat RPM.  Since installing 2.2.2 I've seen slowly
> > degrading Network performance and this Maximum Session ID's issue.
> > Restarting Samba seems to fix both temporarily.  At the moment I've had
> > to set a cron job to restart Samba every morning and evening.  That
> > doesn't stop the Session ID's problem from stopping things during the
> > middle of the day though.  Should I destroy the stuff (except smbpasswd)
> > in /etc/samba/ and build them up again?  I've only got one Win2k box to
> > add to the domain.
> > 
> > [user at server user]$ df
> > Filesystem           1k-blocks      Used Available Use% Mounted on
> > /dev/md1                521684     75216    419968  15% /
> > /dev/md0                 23239      8082     13957  37% /boot
> > /dev/md2               1035596    783804    199184  80% /usr
> > /dev/md3                380760    191034    170053  53% /var
> > /dev/md4                256586        84    243254   0% /tmp
> > /dev/md5               6048196   3838580   1902384  67% /home
> > /dev/md7              29538324  15955972  12081888  57% /mnt/amoadata
> 
> Hmm.
> 
> Shut down Samba, delete /var/locks/samba/sessionid.tdb. 
> 
> Try to reproduce.
> 
> Turn up the log level, and give me a some logs of the code just before
> it thinks its out of sessionids.
> 
> Maybe you could drop past the #samba-technical IRC channel - This kind
> of issue bothers me and I would like it squashed dead.
> 
> Finally, download the current SAMBA_2_2 cvs branch (pserver.samba.org
> for details) and see if it still occours.
> 
> Andrew Bartlett
> 
> -- 
> Andrew Bartlett                                 abartlet at pcug.org.au
> Manager, Authentication Subsystems, Samba Team  abartlet at samba.org
> Student Network Administrator, Hawker College   abartlet at hawkerc.net
> http://samba.org     http://build.samba.org     http://hawkerc.net