Hello

I have a replication problem between two OpenLDAP 2.44 servers configured as multimasters on CentOS 7.3 :
The minimal configuration of both are correct (connection OK with admin credentials),
I replicate the config and hdb databases as you can see in the configuration above,
I use LDAPAdmin to connect to each of them and check if the replication works by creating a test OU: they replicate well.
After a week or more, automatic replication no longer works: I have to restart the slapd service to see the data exchange between the two servers ...
I have contextCSN for both but they are fixed at the installation date.
Do you have an idea ?
Thank you

Here are the configuration (the olcServerID change in server2's configuration) :
dn: olcDatabase={0}config,cn=config

changeType: modify

add: olcAccess

olcAccess: to * by dn.exact="cn=ldapadm,dc=test,dc=factory" manage by * break

dn: olcDatabase={2}hdb,cn=config

changeType: modify

add: olcAccess

olcAccess: to * by dn.exact="cn=ldapadm,dc=test,dc=factory" manage by * break

dn: cn=config

changetype: modify

add: olcServerID

olcServerID: 1

dn: olcDatabase={1}monitor,cn=config

changetype: modify

replace: olcAccess

olcAccess: {0}to * by dn.base="gidNumber=0+uidNumber=0,cn=peercred,cn=external, cn=auth" read by dn.base="cn=ldapadm,dc=test,dc=factory" read by * none

### Updating ID ###

dn: cn=config

changetype: modify

replace: olcServerID

olcServerID: 1 ldap://server1.test.factory

olcServerID: 2 ldap://server2.test.factory

### Enabling CONFIG Replication ###

dn: olcOverlay=syncprov,olcDatabase={0}config,cn=config

changetype: add

objectClass: olcOverlayConfig

objectClass: olcSyncProvConfig

olcOverlay: syncprov

### Configuring CONFIG replication ###

dn: olcDatabase={0}config,cn=config

changetype: modify

add: olcSyncRepl

olcSyncRepl: rid=001 provider=ldap://server1.test.factory binddn="cn=config" bindmethod=simple credentials=password searchbase="cn=config" type=refreshAndPersist retry="5 5 300 5" timeout=1

olcSyncRepl: rid=002 provider=ldap://server2.test.factory binddn="cn=config" bindmethod=simple credentials=password searchbase="cn=config" type=refreshAndPersist retry="5 5 300 5" timeout=1

add: olcMirrorMode

olcMirrorMode: TRUE

### Enabling HDB Replication ###

dn: olcOverlay=syncprov,olcDatabase={2}hdb,cn=config

changetype: add

objectClass: olcOverlayConfig

objectClass: olcSyncProvConfig

olcOverlay: syncprov

### Configuring HDB replication ###

dn: olcDatabase={2}hdb,cn=config

add: olcSyncRepl

olcSyncRepl: rid=004 provider=ldap://server1.test.factory binddn="cn=ldapadm,dc=test,dc=factory" bindmethod=simple credentials=password searchbase="dc=test,dc=factory" type=refreshOnly interval=00:00:00:10 retry="5 5 300 5" timeout=1

olcSyncRepl: rid=005 provider=ldap://server2.test.factory binddn="cn=ldapadm,dc=test,dc=factory" bindmethod=simple credentials=password searchbase="dc=test,dc=factory" type=refreshOnly interval=00:00:00:10 retry="5 5 300 5" timeout=1

add: olcDbIndex

olcDbIndex: entryUUID eq

add: olcDbIndex

olcDbIndex: entryCSN eq

add: olcMirrorMode

olcMirrorMode: TRUE