[Fedora-directory-users] Broken MMR - DB_BUFFER_SMALL: User memory too small for return value

[Rich Megginson]

Richard Hesse wrote:
> Scenario: two FDS 1.1 servers in a multi-master setup. Working fine for
> months without a hiccup (except to upgrade from 1.04) then replication
> suddenly stops working. Checking the logs, I see this:
>
> [03/Apr/2008:23:44:00 +0000] NSMMReplicationPlugin - changelog program -
> agmt="cn=MM aa0-006-8.u.powerset.com" (aa0-006-8:636): Failed to retrieve
> change with CSN 47f5710d000000010000; db error - -30999 DB_BUFFER_SMALL:
> User memory too small for return value
>
> How should I go about troubleshooting this? Searching for replication
> conflicts didn't yield anything useful.
It looks as though it's attempting to read something from the changelog 
database, but it got the size wrong:
Errors

The DBcursor->get method may fail and return one of the following 
non-zero errors:

DB_BUFFER_SMALL
    The requested item could not be returned due to undersized buffer.

What version of db do you have on your system?  i.e. rpm -qi db4
32-bit or 64-bit?

I'm not sure, but it looks as though the code is perhaps expecting bdb 
to return ENOMEM in this case, and perhaps the bdb api has changed to 
return DB_BUFFER_SMALL instead for this case?

> I tried running template-cl-dump.pl
> like the documentation suggested,
Which documentation?  That needs to be updated.
> but I couldn't find it anywhere in
> /usr/share/dirsrv/script-templates (FC6 system).
>   
/usr/bin/cl-dump
> Thanks.
>
> -richard
>
>
> --
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>   

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