Hy !
I am still working on n-way multi master replication. I am using refreshAndPersist mode with to masters.
My first test was to inject in parallel 2 x 500 entries to the first master and also 2 x 500 entries to the second master.
The goal is to see how the replication behaves when massive adds are performed to both masters.
When I used OpenLDAP 2.4.11, I suffered lost. The 1000 entries where successfully added on each master, but a few entries where lost in the replication process. I didn't found any "errors" in the log, even with debug on. The only suspect messages I had, where like this : => bdb_idl_insert_key: c_put id failed: DB_LOCK_DEADLOCK: Locker killed to resolve a deadlock (-30995) => bdb_dn2id_add 0x543: parent (ou=clients,o=edf,c=fr) insert failed: -30995
I then switched to OpenLDAP 2.4.14 and did not have the problem anymore (same configuration). I guess this was a bug form 2.4.11.
Still, I had a few of theses messages in the log : conn=9 op=1 => bdb_dn2id_add dn="cn=M2client2@laposte.net,ou=clients,o=edf,c=fr" ID=0xb: put failed: DB_LOCK_DEADLOCK: Locker killed to resolve a deadlock -30995
but I also got a few of theses : dn_callback : entries have identical CSN cn=M2client20@laposte.net,ou=clients,o=edf,c=fr 20090217155418.854085Z#000000#002#000000 syncrepl_entry: rid=004 be_search (0) syncrepl_entry: rid=004 cn=M2client20@laposte.net,ou=clients,o=edf,c=fr syncrepl_entry: rid=004 entry unchanged, ignored (cn=M2client20@laposte.net,ou=clients,o=edf,c=fr) do_syncrep2: cookie=rid=004,sid=002 syncrepl_entry: rid=004 LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_ADD)
Can anyone explain to me why ? is this normal ? The dn_callback message comes from the master log-file where "cn=M2client20@laposte.net,ou=clients,o=edf,c=fr" was inserted.
Thanks in advance,
Adrien Futschik