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Re: slapd: null_callback : error code 0x14



On Fri, Sep 22, 2017 at 09:15:56PM -0700, Paul B. Henson wrote:
> On Fri, Sep 22, 2017 at 08:50:38AM -0700, Quanah Gibson-Mount wrote:
>> Oh, I thought you had said you only had two masters.  This could well be 
> 
> Ah, my bad, there are a total of 4 nodes, and while technically I guess
> they could all be "masters", only two of them ever receive writes, one
> is the primary behind a hardware load balancer and the other is the
> secondary; so in my head I have two masters and two read only systems.
> Which I suppose isn't really accurate from an openldap architecture
> perspective, sorry.
> 
>> ITS#8444 (ignore the ITS title, it has nothing to do with memberOf), where 
>> there are out of sync problems with 3+ MMR nodes and delta-syncrepl when 
>> syncprov checkpoints.
> 
> Oh, I remember that ITS, I thought I'd fixed that issue by getting rid
> of the memberOf overlay and switching to dynlist 8-/. It seems since I
> stopped paying attention to it it's moved on in other directions.
> 
> I see there was a proposed patch posted on 8/25 that's been applied to
> RE24, I'll add that to my system and see if the issue goes away. Am I
> correct in my assumption that the patch only needs to be applied to the
> system that is receiving the updates?

I'd apply it everywhere you have syncprov configured, these could send a
cookie with too little information for a replica to spot and skip a
duplicate.

-- 
Ondřej Kuzník
Senior Software Engineer
Symas Corporation                       http://www.symas.com
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