How do I increase the number of DB locks in Red Hat Directory Server or Identity Management

Issue

• The following messages are logged to /var/log/dirsrv/slapd-<instance>/errors:

[18/Feb/2025:21:29:16.859630751 -0800] - ERR - NSMMReplicationPlugin - changelog program - _cl5PurgeRID - Ran out of db locks getting the next entry.  Reduce the batch value and restart.

or

[21/Oct/2014:17:07:46 +0100] - libdb: Lock table is out of available lock entries

• The following messages are logged to /var/log/dirsrv/slapd-<instance>/errors:

[06/Dec/2021:10:51:45.900098980 +0900] - ERR - checkpoint_threadmain - compactdb: failed to compact userRoot; db error - 12 Cannot allocate memory

or

[05/Aug/2016:00:26:46 +051800] - libdb: BDB2055 Lock table is out of available lock entries
[05/Aug/2016:00:26:46 +051800] - compactdb: failed to compact changelog; db error - 12 Cannot allocate memory

• How can I increase the number of locks?