RE: [EXT] Re: manual page slapd-mdb.5 and "maxsize"

Howard,

You are right that one can read every thing from the schema, but given there are manual pages, it would not be too much work to put the most essential facts there. I know that developers don't like to write manual pages, and it can be a frustrating experience to realize that most users won't read them. Still I believe in manual pages 😉

Kind regards, Ulrich Windl

-----Original Message----- From: Howard Chu hyc@symas.com Sent: Friday, February 28, 2025 5:03 PM To: Windl, Ulrich u.windl@ukr.de; openldap-technical@openldap.org Subject: [EXT] Re: manual page slapd-mdb.5 and "maxsize"

Windl, Ulrich wrote:

...

Migrating to OpenLDAP 2.5 and MDB I hit the default 10MB limit (when

trying to import a 6.8MB LDIF).

...

Seeking how to extend the size online, I found:

*maxsize*/ <bytes>/ <https://manpages.debian.org/testing/slapd/slapd-

mdb.5.en.html#maxsize>

...

Specify the maximum size of the database in bytes. A memory map of this

size is allocated at startup time and the database will not be allowed to grow beyond

...

this size. The default is 10485760 bytes. This setting may be changed

upward if the configured limit needs to be increased.

...

However it’s completely non-obvious that the name for cn=config is

“olcDbMaxSize” (and not “olcMaxssize”).

The schema is self-documenting. Just read the olcMdbConfig objectclass and the descriptions of all of its attributes.

e.g. `ldapsearch -H ldap://xxx -b cn=schema,cn=config -s base`

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