You should be specifying shm-key to benefit from shared mem vs memory mapped files
++Cyrille
Le 7 nov. 2013 à 12:04, "richard lucassen" mailinglists@lucassen.org a écrit :
Hello list,
I want to migrate some OpenLDAP servers from 3.5" disks to CF-disks. The data in the OpenLDAP is only updated once a month or so. It is just an "99%-read-only" LDAP implementation.
However, with a standard Debian install, some files in the /var/lib/ldap directory are updated upon each query:
# ls -altr -rw-r--r-- 1 openldap openldap 96 2008-11-19 11:45 DB_CONFIG drwxr-xr-x 28 root root 4096 2008-12-03 15:03 .. -rw------- 1 openldap openldap 8192 2013-04-08 10:50 cn.bdb -rw------- 1 openldap openldap 24576 2013-09-29 13:49 objectClass.bdb -rw------- 1 openldap openldap 180224 2013-09-29 13:49 id2entry.bdb -rw------- 1 openldap openldap 8192 2013-09-29 13:49 entryUUID.bdb -rw------- 1 openldap openldap 8192 2013-09-29 13:49 entryCSN.bdb -rw------- 1 openldap openldap 36864 2013-09-29 13:49 dn2id.bdb -rw------- 1 openldap openldap 1168654 2013-10-17 09:40 log.0000000001 -rw------- 1 openldap openldap 24576 2013-11-07 05:45 __db.005 -rw------- 1 openldap openldap 98304 2013-11-07 05:45 __db.003 -rw-r--r-- 1 openldap openldap 4096 2013-11-07 05:45 alock drwx------ 2 openldap openldap 4096 2013-11-07 05:45 accesslog drwx------ 3 openldap openldap 4096 2013-11-07 05:45 . -rw------- 1 openldap openldap 565248 2013-11-07 11:30 __db.004 -rw------- 1 openldap openldap 2629632 2013-11-07 11:30 __db.002 -rw------- 1 openldap openldap 8192 2013-11-07 11:30 __db.001
Apparently the cluster is doing some synchronizing at 05:45 in the morning, but that's once a day. My concern is the files called
__db.001 __db.002 __db.004
Is there a simple way to prevent OpenLDAP from updating these files at each query?
R.
-- ___________________________________________________________________ It is better to remain silent and be thought a fool, than to speak aloud and remove all doubt.
+------------------------------------------------------------------+ | Richard Lucassen, Utrecht | +------------------------------------------------------------------+