null_callback: error code 0x12

[Will Nowak]

Using 4 machines with slapd 2.4.9-0ubuntu0.8.04.2 on hardy. Master with three syncrepl slaves. After a week or so of proper operation, syncrepl replication stops functioning, and updates are no longer propagated from the master to the slaves.
Deleting the slapd DBs in /var/lib/ldap and restarting the slave will fetch a new dataset from the master, but it will not remain up to date after that.
Re-initializing the master and slaves all together will reset to the beginning success, soon to be followed by a replication failure.
Sample log of replication failure from a slave perspective is here: http://pastebin.ubuntu.com/79348/

[Will Nowak (compbrain)]

http://pastebin.ubuntu.com/79362/ # Master logfile
http://pastebin.ubuntu.com/79348/ # Slave logfile

[Greg Franklin (greg-franklin-wmrdc)]

Looks like this is fixed in 2.4.11

http://www.openldap.org/its/?findid=5781

Any chance of a backport of this fix to Hardy?

[Chuck Short (zulcss)]

Fixed in karmic. This probably would be a good candidate for an SRU.

Regards
chuck