Hi wonderful ppl at openldap- 
Running 2.4.37 - on centos 6.4 

using following ldif to update olcDbConfig
dn: olcDatabase={2}hdb,cn=config
changetype: modify
replace: olcDbConfig
olcDbConfig: set_lg_max 10485760
olcDbConfig: set_lg_regionmax 262144
olcDbConfig: set_lg_bsize 2097152
olcDbConfig: set_lg_dir /var/lib/ldap/
olcDbConfig: set_lk_max_locks 8192
olcDbConfig: set_lk_max_objects 8192
olcDbConfig: set_flags DB_LOG_AUTOREMOVE
olcDbConfig: set_tas_spins 1
-

ldapmodifyx -d 1 -h localhost -D 'cn=Manager,cn=config' -W -f /var/tmp/ldif 

Getting the following error 
res_errno: 80, res_error: <failed to reopen database, rc=22>, res_matched: <>
ldap_free_request (origid 2, msgid 2)
ldap_parse_result
ber_scanf fmt ({iAA) ber:
ber_scanf fmt (}) ber:
ldap_msgfree
ldap_err2string
ldap_modify: Other (e.g., implementation specific) error (80)
additional info: failed to reopen database, rc=22

Going through the list lead me to believe that changes will be applied after the restart? but didnt say it causes an error. Also does olcDbNoSync play a role here ? 

Can someone shed some light on this?