--On Thursday, November 01, 2012 12:36 PM -0400 Kyle Smith < alacer.cogitatus(a)gmail.com&gt; wrote: Ok, I have been running 2.4.32 for some time with no issues. Yesterday, 2 > different servers (both part of a 4-way MMR) produced an "index add > failure" and an "index delete failure". I went back over the bdb > DB_CONFIG Settings (listed below) and everything looks nominal to me. > Would it just make more sense to switch from bdb to mdb instead of > troubleshooting these "random" errors too much? I also noticed that the > number of "deadlocks" corresponds to the number of errors that were > produced. Is there correlation there? > I would suggest back-mdb in OpenLDAP 2.4.33 over back-hdb, yes. It will remove these deadlock issues entirely. When you configure the back-mdb backend in cn=config, be sure to have: olcDbEnvFlags: writemap olcDbEnvFlags: nometasync set as well. This makes back-mdb writes significantly faster than writes to back-bdb/hdb. (Some 2x faster in my testing so far). --Quanah -- Quanah Gibson-Mount Sr. Member of Technical Staff Zimbra, Inc A Division of VMware, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration