(ITS#8995) OpenLdap (SyncRepl + Mirror Mode) issue

[abhisheknegi684@gmail.com]

Full_Name: abhishek negi
Version: 2.4.38
OS: Linux 6
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (182.77.13.52)


PLease suggest a way to rectify the delay observed while replication. Below are
the details:

Replication used: SyncRepl + Mirror Mode (active-active setup) Replication

Issue summary: 

Replication from DC-->DR is working fine with no time-lag b/w the packets/data.
Facing issue with replication from DR--x-->DC setup. Sometimes, data/packets
from DR flows with a delay to DC. This case doesn't follow any pattern, the
setup works perfectly fine for 4-5 days, then suddenly packets/data flows with
delay/time-lag. This delay is only observed from DR to DC.


syncrepl     rid=841
             provider=ldap://<DC-IP>:389
             bindmethod=simple
             binddn="cn=root,ou=test,o=test1,c=in"
             credentials=XXXXXXXXXXX
             searchbase="ou=test,o=test1,c=in"
             schemachecking=on
             attrs=*
             interval=00:00:00:10
             type=refreshAndPersist
             retry="5 5 300 5"

syncrepl     rid=842
             provider=ldap://<DR-IP>:389
             bindmethod=simple
             binddn="cn=root,ou=test,o=test1,c=in"
             credentials=XXXXXXXXXXX
             searchbase="ou=test,o=test1,c=in"
             schemachecking=on
             attrs=*
             interval=00:00:00:10
             type=refreshAndPersist
             retry="5 5 300 5"

index entryCSN eq
index entryUUID eq
mirrormode TRUE
overlay syncprov
syncprov-checkpoint 100 10
syncprov-sessionlog 100