Hi,

we are using the branch 1.3.2 on CentOS7 in our production environment (version 1.3.2.27 with some additional patches from the git of this branch).

There are three MMR replicating servers. It's one month of uptime and the servers wanted to trim the replication log. Here is what i've found in error log on each of them :

1st server:

[18/Jun/2015:08:04:31 +0200] - libdb: BDB2055 Lock table is out of available lock entries
[18/Jun/2015:08:04:31 +0200] NSMMReplicationPlugin - changelog program - _cl5CompactDBs: failed to compact a45fa684-f28d11e4-af27aa63-5121b7ef; db error - 12 Cannot allocate memory

2nd server:

[18/Jun/2015:08:10:34 +0200] - libdb: BDB2055 Lock table is out of available lock entries
[18/Jun/2015:08:10:34 +0200] NSMMReplicationPlugin - changelog program - _cl5CompactDBs: failed to compact acb7e184-f28d11e4-9b13d240-c66923c8; db error - 12 Cannot allocate memory

3rd server:

[18/Jun/2015:08:18:10 +0200] - libdb: BDB2055 Lock table is out of available lock entries
[18/Jun/2015:08:18:10 +0200] NSMMReplicationPlugin - changelog program - _cl5CompactDBs: failed to compact acb7e184-f28d11e4-8067eff8-b1ca763b; db error - 12 Cannot allocate memory

The changelog itself is not huge :

[root@ldap-ens]# ll -h /Local/dirsrv/var/lib/dirsrv/slapd-ens/changelogdb/
total 390M
-rw------- 1 ldap ldap 390M Jun 18 10:18 a45fa684-f28d11e4-af27aa63-5121b7ef_5547be40000000010000.db
-rw-r--r-- 1 ldap ldap    0 May 19 08:02 a45fa684-f28d11e4-af27aa63-5121b7ef.sema
-rw------- 1 ldap ldap   30 May  4 20:45 DBVERSION

The server are working correctky, the replication is also working

What are the potential consequences of this error? How can we avoid it?

Thank you!