Slapd in RedHat 6.2

["刘罡" <gang_l@vinside.com>]

Hello,

    I run openldap-stable-20000515 in RedHat 6.2 i386.I have some question about slapd.
In OpenLDAP software FAQ,I found it is safe to run slapd without threads in Linux.
However,slapd in my linux box often cost 99.9% CPU.When I change to slapd with threads,
It often die.I can not get useful msg from log file.So anything wrong?Thank you very much.

Some information about my linux box is here.

Linux xxx 2.2.16-3smp #1 SMP Mon Jun 19 19:00:35 EDT 2000 i686 unknown

[root@xxx /root]# free
             total       used       free     shared    buffers     cached
Mem:       1036176     267960     768216      12836      23520      65384
-/+ buffers/cache:     179056     857120
Swap:      1052616       4056    1048560

OpenLDAP configuration:

./configure --with-ldbm-api=gdbm --without-threads

slapd.conf:

#
# See slapd.conf(5) for details on configuration options.
# This file should NOT be world readable.
#
include  /etc/openldap/slapd.at.conf
include  /etc/openldap/slapd.oc.conf

include  /etc/openldap/conf.oc.conf

schemacheck on
#referral ldap://root.openldap.org/

pidfile  /var/lib/ldap/vinside/slapd.pid
argsfile /var/lib/ldap/vinside/slapd.args

loglevel 256

access to *
   by * none
access to attr=userpassword
          by self write
          by * none
access to *
          by self write
          by dn=".+" read
          by * none

#######################################################################
# ldbm database definitions
#######################################################################

database ldbm
suffix  "ou=People, o=VinSide, c=CN"
rootdn  "cn=Manager, ou=People, o=VinSide, c=CN"
rootpw  secret

directory /var/lib/ldap/vinside/People

index  uid,isOnline,gender,province,marital,ShuXiang,constellation,education,employment,hobby,interest,incoming eq
index  emailAddress,nickName,dateOfBirth,school,speciality

index           default none

cachesize 50000
dbcachesize     5000000
dbcachenowsync  on

#replica  host=dir1.vinside:8389
#  binddn="cn=Manager, ou=People, o=VinSide, c=CN"
#  bindmethod=simple credentials=secret

#replogfile  /var/vinside/People/slapd.replog

lastmod  off

database ldbm
suffix  "ou=Cluster, o=VinSide, c=CN"
rootdn  "cn=Manager, ou=Cluster, o=VinSide, c=CN"
rootpw  secret

directory /var/lib/ldap/vinside/Cluster

index           uid,mailName eq
index           default none

cachesize 50000
dbcachesize     5000000
dbcachenowsync  on

#replogfile  /var/vinside/Cluster/slapd.replog

#replica  host=dir1.vinside:8389
#  binddn="cn=Manager, ou=Cluster, o=VinSide, c=CN"
#  bindmethod=simple credentials=secret

lastmod  off

database ldbm
suffix  "ou=Group, o=VinSide, c=CN"
rootdn  "cn=Manager, ou=Group, o=VinSide, c=CN"
rootpw  secret

directory /var/lib/ldap/vinside/Group

index  club_id,club_Category_level_1,club_isGroup,club_allow_sub,club_Category_level_2,club_Category_level_3,mailName eq
index  club_search_keyword
index           default none

cachesize 1000
dbcachesize     100000
dbcachenowsync  on

#replogfile  /var/vinside/Group/slapd.replog

#replica  host=dir1.vinside:8389
#  binddn="cn=Manager, ou=Group, o=VinSide, c=CN"
#  bindmethod=simple credentials=secret

lastmod  off

database ldbm
suffix  "ou=Conf, o=VinSide, c=CN"
rootdn  "cn=Manager, ou=Conf, o=VinSide, c=CN"
rootpw  secret

directory /var/lib/ldap/vinside/Conf

index           confid eq
index           default none

cachesize 100
dbcachesize     100000
dbcachenowsync  on

#replogfile  /var/vinside/Conf/slapd.replog

#replica  host=dir1.vinside:8389
#  binddn="cn=Manager, ou=Conf, o=VinSide, c=CN"
#  bindmethod=simple credentials=secret

lastmod  off

Notes:
    Because there is a great deal of entry in our project and ext2fs only supports 2G file,
    We use three backend to store our data. Wrong?