Two servers running OpenLDAP in master/master using syncrepl, roughly once per week one of the servers stops responding to new connections, I tried logging with loglevel=1 and this is all I got, all suggestions and comments appreciated.

This is most likely a "load" related problem since we never experience this problem in the testlab, only production.:

Apr 23 20:36:37 ldap01 slapd2.4[32233]: bdb_dn2entry("macaddress=1\2C6\2C00:00:00:00:00:01,ou=xxx,ou=xx,o=xxxx") Apr 23 20:36:37 ldap01 slapd2.4[32233]: => bdb_dn2id("macaddress=1\2C6\2C00:00:00:00:00:01,ou=xxx,ou=xx,o=xxxx") Apr 23 20:36:37 ldap01 slapd2.4[32233]: <= bdb_dn2id: get failed: DB_NOTFOUND: No matching key/data pair found (-30988) Apr 23 20:36:37 ldap01 slapd2.4[32233]: => bdb_dn2id_add 0x2fed7: "macaddress=1\2C6\2C00:00:00:00:00:01,ou=xxx,ou=xx,o=xxxx" Apr 23 20:37:44 ldap01 slapd2.4[32233]: slap_listener_activate(8): Apr 23 21:35:42 ldap01 slapd2.4[32233]: connection_close: conn=1025 sd=16 Apr 23 21:55:42 ldap01 slapd2.4[32233]: connection_close: conn=1022 sd=17 Apr 23 21:55:42 ldap01 slapd2.4[32233]: connection_close: conn=1037 sd=18 Apr 23 21:55:42 ldap01 slapd2.4[32233]: connection_close: conn=1038 sd=20 Apr 23 21:55:42 ldap01 slapd2.4[32233]: connection_close: conn=1039 sd=25

Apr 24 12:02:23 ldap01 slapd2.4[32233]: daemon: shutdown requested and initiated. I have two Centos 5 servers running Openldap 2.4.22 with master/master syncrepl setup, Apr 24 12:02:23 ldap01 slapd2.4[32233]: connection_close: conn=1005 sd=21 Apr 24 12:02:23 ldap01 slapd2.4[32233]: slapd shutdown: waiting for 59 operations/tasks to finish Apr 24 12:02:34 ldap01 slapd2.4[26503]: bdb_db_open: database "": unclean shutdown detected; attempting recovery. Apr 24 12:02:35 ldap01 slapd2.4[26503]: slapd starting

---------------------- Relevant Config ------------------------------------------------ moduleload syncprov.la TLSCertificateFile /etc/pki/tls/private/ldap.pem TLSCertificateKeyFile /etc/pki/tls/private/ldap.pem TLSCACertificateFile /etc/pki/tls/private/ldap.pem

serverID 001 database bdb sizelimit 50000 cachesize 10000 checkpoint 256 5

syncrepl rid=001 provider=ldap://10.10.10.10:389 bindmethod=simple binddn="uid=xxxxrep,ou=xxxxxx,o=xxxxxx" credentials=MyPassword searchbase="o=xxxx" schemachecking=on sizelimit="unlimited" timelimit="unlimited" type=refreshAndPersist interval=00:00:00:10 retry="5 5 60 +" attrs="*,+"

mirrormode on overlay syncprov syncprov-checkpoint 100 10 syncprov-sessionlog 100

idletimeout 3600 threads 32

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