[Samba] ctdb [high hopcount 1359100196 dbid:locking.tdb]

[Martin Schwenke]

I can only remember 1 vacuuming bug (which possibly could cause this)
that *may not* be fixed in 4.10.x (depends on version and distro
patches). This bug is:

  https://bugzilla.samba.org/show_bug.cgi?id=14147

I suggest that you check the source to see if the relevant patches have
been applied.  However, this bug is rare and you appear to be seeing it
a lot.

The previous links I provided summarise everything I know about this
issue.  I encourage you to read them carefully, see if you can find a
bug, and hopefully contribute a patch.  We have previously audited the
code to attempt to find such bugs, concluded that out-of-memory was the
only likely scenario, and then found appropriate messages in the logs
to support this.  You should probably take a similar approach.

I would also suggest lots of careful testing as you upgrade.

Good luck!

peace & happiness,
martin

On Mon, 16 May 2022 23:18:11 +0800, hhhaaa hhhaaa via samba
<samba at lists.samba.org> wrote:

> thank you very much！
> not "out of memory"
> When there is a problem, I see that the memory does not report an error
> 
> On Mon, May 16, 2022 at 6:26 PM Martin Schwenke <martin at meltin.net> wrote:
> 
> > On Sat, 14 May 2022 20:38:36 +0800, hhhaaa hhhaaa via samba
> > <samba at lists.samba.org> wrote:
> >  
> > >   I watched but couldn't solve the problem.we only have one client,it run
> > > fastcopy business,and there are no performance issues.
> > >  https://wiki.samba.org/index.php/CTDB_Performance
> > >
> > > environment:
> > >    nodes:4
> > >    ctdb:4.10.16
> > >    os:centos7.6
> > > Crazy printing "high hopcount 1359100196 dbid:locking.tdb" every day .  
> >
> > It is likely that you are running out of memory.  Please see this
> > thread:
> >
> >   https://lists.samba.org/archive/samba/2021-October/237784.html
> >
> > Please also note that CTDB 4.10.16 is very old and may contain bugs
> > that have been fixed in more recent versions.
> >
> > peace & happiness,
> > martin
> >  
> -- 
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba