Home / server / Questions / 912528
In Process
Leo
Asked: 2018-05-17 07:23:37 +0800 CST

How do I change the maximum number of locks for OpenLDAP bdb?

  • 772

I'm trying to remove a memberUid from an LDAP group with ~50,000 members. It's failing with this error message:

5afc4c76 bdb(dc=example,dc=com): Lock table is out of available lock entries
5afc4c76 => bdb_idl_insert_key: c_get failed: Cannot allocate memory (12)

bdb is limited to 1500 locks:

#  db_stat -h /var/lib/ldap/ -c | grep "Maximum number of locks"
1500    Maximum number of locks possible
1514    Maximum number of locks at any one time
14  Maximum number of locks in any one bucket
476 Maximum number of locks stolen by for an empty partition
57  Maximum number of locks stolen for any one partition

I've tried editing the DB_CONFIG file as follows and restarting slapd:

# cat /var/lib/ldap/DB_CONFIG
set_cachesize 0 314572800 0
set_lk_max_objects 15000
set_lk_max_locks 15000
set_lk_max_lockers 15000

Unfortunately, this doesn't change the active values from 1500 to 15000.

How do I change the set_lk_max_locks value for an OpenLDAP bdb database?

ldap

0 Answers