This is occurring with LiveUpdate Administrator 2.3.1, (a recent clean-install of the new LUA version) on a Win 2003 server with 2 CPUs  that has 7 GB of free space today.

For some of the distribution failures (not all) this reason is given in the LUA Event log: "Another distribution schedule is updating [the] database for the same server" as in the screenshot below.

There were NO Downloads or Distributions running.  On the latest trial, I made extra certain there were no other schedules running by booting and THEN selecting the one Distribution schedule we have and clicking Run Now.  After about ten minutes, we got this error again:

       [screenshot

Additional info:

I have booted,  defragged for timing, recreated Schedules, and repeated manual runs over and over. There is no option to do a repair on LUA. We only have two schedules, and they are both for very early in the morning.

Background: I installed LUA 2.3 about six months ago and it ran rather smoothly for about three months. Then failures became nearly 100%, Support tried many things but could not fix. I uninstalled 2.3 and did a clean install of LUA 2.3.1 released about a month ago (Dec. 2011). Totally clean install. I did not import any settings.   This particluar LUA pulls SEP content from another LUA we have to provide it to some SEP clients in a high-security domain.

Any ideas of how to fix? 

Added keywords Another distribution schedule is updating database for the same server