Re: (ITS#5471) Object-Deletions (some) missing in syncrepl consumers

[m.d.t.evans@qmul.ac.uk]

On Wed, 2008-04-16 at 08:34 +0000, marian.eichholz@freenet.ag wrote:
> Full_Name: Marian Eichholz
> Version: HEAD-20080411
> OS: Linux
> URL: ftp://ftp.openldap.org/incoming/
> Submission from: (NULL) (194.97.7.65)
> 
> 
> When I made a consistency check with our two syncrepl consumers, I found several
> irritating differences.
> 
> After the initial refresh cycle, the DNs were complete. But when the consumers
> got all new objects after, they now have objects that were deleted on the
> provider in the meantime. Unfortunately I cannot tell when that happened to a
> specific DN.
> The set of undeleted objects is not identically on the two consumers.
> So I guess that it is not a problem with the data itself.
> 
> So the consumers are corrupted now.
> 
> Both consumers suffer from hanging replication sessions. This is why we switched
> from 2.4.8 to HEAD (11.4.2008, see ITS 5463). They were stopped and restarted
> repeatedly, of course. The daemons have never been killed. So the DBD backend
> SHOULD be OK.
> 
> Any idea how to find such events in the LOCAL4-Log? I did not apply "any" as
> loglevel for predictable performance issues and so liked to keep the entries to
> a reasonable volume.
> 
> Thank You very much for any idea.
> 
> Yours sincerely - Marian Eichholz (freenet AG)
> 
> 

Hi Marion. I saw both those problems with 2.4.8. But they both seem to
have been fixed in the RE24 cvs tag as of 14/04/08. I have an
arrangement of syncrepl servers based on that release that has been
running fine for a few days now with about 10 connections per second on
the consumers. Martin.

-- 
-- Dr Martin Evans, Computing Services, Queen Mary