How to change the ServerID in MMR setup
How to change the ServerID in MMR setup?
Problem:
In MMR setup both ldap are not in sync due to the same ServerID for the both LDAP servers i.e.(ServerID: 2).
[zimbra@ldap2 ~]$ /opt/zimbra/libexec/zmreplchk Master: ldap://master2.domain.com:389 ServerID: 2 Code: 6 Status: 0y 0M 0w 0d 0h 0m 31 CSNs: 20221013134129.954789Z#000000#001#000000 Master: ldap://master1.domain.com:389ServerID: 2 Code: 6 Status: 0y 0M 0w 0d 0h 0m 31 CSNs: 20200909225502.112266Z#000000#002#000000 [zimbra@ldap1 ~]$ /opt/zimbra/libexec/zmreplchk Master: ldap://master1.domain.com:389 ServerID: 2 Code: 6 Status: 0y 0M 0w 0d 0h 0m 31s behind CSNs: 20221013134129.954789Z#000000#001#000000 Master: ldap://master2.domain.com:389 ServerID: 2 Code: 6 Status: 0y 0M 0w 0d 0h 0m 31s behind CSNs: 20200909225502.112266Z#000000#002#000000
Solution:
Need to modify the ServerID: 2 to 1 on LDAP1 server. To achieve this, Need to modify configuration database and update the value of parameter olcServerId to 1 on LDAP1 server.
Step 1: Take the backup configuration database manually from LDAP1 server. Stop the ldap service and Export the ldap configuration database.
su - zimbra ldap stop /opt/zimbra/libexec/zmslapcat -c /tmp
Step 2: Modify the /tmp/ldap-config.bak to update the value of olcServerID and make it 1.
Step 3: Verify the changed oclServerID before importing it back.
[zimbra@ldap1 ~]$grep -i olcServerID: /tmp/ldap-config.bak olcServerID: 1
Step 4: Move the existing config directory and Import the configuration database on LDAP1 server.
cd /opt/zimbra/data/ldap mv config config.bak mkdir config /opt/zimbra/libexec/zmslapadd -c /tmp/ldap-config.bak
Step 5: Restart the services.
ldap start
Step 6: Now again check both ladps are in sync.
[zimbra@ldap2 ~]$ /opt/zimbra/libexec/zmreplchk Master: ldap://master1.domain.com:389 ServerID: 1 Code: 0 Status: In Sync CSNs: 20221013134129.954789Z#000000#001#000000 20200909225502.112266Z#000000#002#000000 Master: ldap://master2.domain.com:389 ServerID: 2 Code: 0 Status: In Sync CSNs: 20221013134129.954789Z#000000#001#000000 20200909225502.112266Z#000000#002#000000 [zimbra@ldap1 ~]$ /opt/zimbra/libexec/zmreplchk Master: ldap://master1.domain.com:389 ServerID: 1 Code: 0 Status: In Sync CSNs: 20221013134129.954789Z#000000#001#000000 20200909225502.112266Z#000000#002#000000 Master: ldap://master2.domain.com:389 ServerID: 2 Code: 0 Status: In Sync CSNs: 20221013134129.954789Z#000000#001#000000 20200909225502.112266Z#000000#002#000000
Submitted by: Aditya Shrivastava |