Re: (ITS#7279) Apparently mdb "approx" index generation failure for mdb_add for syncrepl consumer

[hyc@symas.com]

brandon.hume@dal.ca wrote:
> Full_Name: Brandon Hume
> Version: 2.4.31
> OS: RHEL EL6.1, kernel 2.6.32-131.12.1.el6.x86_64
> URL: http://den.bofh.ca/~hume/mdb_approx_indexfail.tar
> Submission from: (NULL) (2001:410:a010:2:223:aeff:fe74:400e)
>
>
> An empty syncrepl consumer using mdb backend will suffer index generator
> failures when populating its database from the provider and using "approx" index
> options.  The failure manifests in syslog (with olcLogLevel=Stats) as the
> following:
>
> May 24 11:50:41 node2 slapd[25282]: null_callback : error code 0x50
> May 24 11:50:41 node2 slapd[25282]: syncrepl_entry: rid=001 be_add $DN failed
> (80)
>
> These problems don't seem to occur when populating the provider using slapadd.
> The problem only seems to manifest when the new entry arrives via syncrepl.
> Playing with gdb, it seems like indexer() ends up being called with { bv_len =
> 0, bv_val = "" } when indexing "givenName".

Thanks for the report, fixed now in git master. slapadd also failed for me, so 
it wasn't quite the same behavior you reported.
>
> Could be because "givenName" on the troublesome entry is only one character?
>
> A minimalist DIT and config are provided in the tarfile in the link.  The two
> nodes are running in mirrormode, and I'm not sure if that makes a difference.

The config is invalid; you have used the same RIDs multiple times.

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