slapd suddenly shuts down

[Héctor Miranda <hmiranda@insys-corp.com.mx>]

Hi,

Is there any reason(s) that could make slapd to terminate at a specified
time?

This, because I had two stand alone OpenLDAP up and running in a load
balanced schema but now I had the necessity to separate them (site
migration). Now there have been two unexpected slapd shutdowns on different
times without an apparent good reason at the machine that is supporting my
corp's load.

This is what the log shows up:

Jul 20 10:41:46 solaris slapd[899]: [ID 347666 local4.debug] conn=236179
op=0 BIND dn="cn=Manager,o=corp" method=128
Jul 20 10:41:46 solaris slapd[899]: [ID 338319 local4.debug] conn=236177
op=3 UNBIND
Jul 20 10:41:46 solaris slapd[899]: [ID 237057 local4.debug] conn=236179
op=0 BIND dn="cn=Manager,o=corp" mech=simple ssf=0
Jul 20 10:41:46 solaris slapd[899]: [ID 952275 local4.debug] conn=236177
fd=42 closed
Jul 20 10:41:46 solaris slapd[899]: [ID 217296 local4.debug] conn=236179
op=0 RESULT tag=97 err=0 text=
Jul 20 10:41:46 solaris slapd[899]: [ID 952275 local4.debug] conn=201650
fd=11 closed
Jul 20 10:41:46 solaris slapd[899]: [ID 952275 local4.debug] conn=235457
fd=15 closed
Jul 20 10:41:46 solaris slapd[899]: [ID 952275 local4.debug] conn=201651
fd=16 closed
.
.
Jul 20 10:41:46 solaris slapd[899]: [ID 952275 local4.debug] conn=236176
fd=45 closed
Jul 20 10:41:46 solaris slapd[899]: [ID 952275 local4.debug] conn=236178
fd=46 closed
Jul 20 10:41:46 solaris slapd[899]: [ID 952275 local4.debug] conn=236179
fd=47 closed
Jul 20 10:41:46 solaris slapd[899]: [ID 952275 local4.debug] conn=236025
fd=50 closed
Jul 20 10:41:46 solaris slapd[899]: [ID 542995 local4.debug] slapd shutdown:
waiting for 0 threads to terminate
Jul 20 10:41:47 solaris slapd[899]: [ID 486161 local4.debug] slapd stopped.

It seems a normal shutdown, but it shouldn't happen since nobody stopped
manually the slapd.

The machine is a well sized Solaris 8 and with 8Gigs on RAM we think it can
handle the processing of a 4000 users directory.

Has anyone had the same situation??

REGARDS!
Héctor.