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Re: Help tweaking settings so slapd is not writing to disk so much

Marc wrote:

To enable shared memmory I just do this?

In DB_CONFIG: set_shm_key 1


Put the slapd conf: olcDbShmKey to 1

Read the slapd-bdb(5) manpage.

And rebuild the bdb database in /var/lib/ldap/

You don't need to rebuild the database. Just run db_recover on the database.

I have a default (centos6) DB_CONFIG setup.
set_cachesize 0 268435456 1
set_lg_regionmax 262144
set_lg_bsize 2097152

I think if you had mounted the DB's filesystem with noatime or relatime that would also have removed the problem.

  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/