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creating a memory leak with slapd (ITS#287)
Full_Name: Aaron C. DuMar
Submission from: (NULL) (188.8.131.52)
This isn't a problem, just a note about a problem I had moving from a CSO/PH db
ldap. I'm hoping that this will help others that see similar behavior.
Some time back, I convinced our guys to move to an LDAP solution for mail
etc. (our little Solaris machine running CSO/PH has seen better days). Anyways,
dumped our data (using a perl script) from the PH server into an ldif format.
using the ldif2ldbm binary from OpenLDAP built the db. Everything seemed fine,
except after a few days, slapd would eat up all of our memory and the machine
worthless (that made our email users quite unhappy :). So, I set up a script to
restart slapd hourly to handle this until I got the problem solved.
Well, I've finally figured out the memory leak problem. It seems the problem
with the database (which I assume came from the transition from CSO/PH to
I'm using the ldbm database, and when I export it to ldif format, I see entries
dn: cn=, ou=Department of Physics, o=Texas A&M University, st=TX, c=US
and nothing else (with the exception of the normal well formatted entries).
There were about 15 of these things. No "cn", no other attributes. Must have
been a bug in the db move.
I removed all these empty entries from the ldif file and rebuilt the db. Memory
usage seems stable now.
So, if you find memory leaks, even from basic searching/filtering, take a look
the db, it fixed my problem.