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Re: BDB: Converting mmapped files to shared memory: Need slap{cat, add}?
Quanah Gibson-Mount wrote:
> --On Monday, August 27, 2012 9:42 AM +1000 Nick Urbanik
> <nick.urbanik@optusnet.com.au> wrote:
>
>> Dear Folks,
>>
>> I have a large production 2.4.32 LDAP server slaving many trees. I
>> set it up with memory-mapped files, and want to change it to use
>> shared memory instead, since shared memory BDB seems to work better
>> after watching the other servers that have been upgraded 2.3 => 2.4.32
>> with shared memory.
>>
>> To convert this, do I need to slapcat the directories and restore them
>> after the configuration change with slapadd, or is it sufficient to
>> use db_recover in each LDAP database after changing the configuration
>> while slapd is stopped?
>
> All you have to do is modify slapd.conf/cn=config to use a shared memory
> key. BDB should take care of the rest. There is definitely no need to
> slapcat/slapadd the DB. A shared memory key changes where BDB stores its
> cache, not where the database is stored, or how slapd interfaces with BDB.
If using slapd.conf, you need to manually do a db_recover to make the change
take effect.
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/