Why a Directory Consumer is not read-only? - Part II

Continue from my previous post ...

Master: ds-master.singapore.sun.com:389
Consumer: ds-slave.singapore.sun.com:1389


Let's perform a modification operation on the Consumer. I modified the entry for CLow2.

Below is what you'll observe in the access log of the Consumer:


[20/Jul/2010:02:26:28 +0800] conn=0 op=99 msgId=2098 - MOD dn="uid=CLow2,ou=People,dc=singapore,dc=sun,dc=com"
[20/Jul/2010:02:26:28 +0800] conn=0 op=99 msgId=2098 - RESULT err=10 tag=103 nentries=0 etime=0

The consumer rejects modification operation (err=10). It kicks started the referral process to redirect the MOD request to the master.

Below is what you'll observe in the access log of the Master:

[20/Jul/2010:02:26:28 +0800] conn=63 op=1 msgId=2100 - MOD dn="uid=CLow2,ou=People,dc=singapore,dc=sun,dc=com"

[20/Jul/2010:02:26:28 +0800] conn=63 op=1 msgId=2100 - RESULT err=0 tag=103 nentries=0 etime=0

The master process the modification request successfully (err=0).

Below is the dse.ldif file on the Consumer:

dn: cn="dc=singapore,dc=sun,dc=com",cn=mapping tree,cn=config

objectClass: top

objectClass: extensibleObject

objectClass: nsMappingTree

cn: "dc=singapore,dc=sun,dc=com"

nsslapd-backend: userRoot

nsslapd-referral: ldap://ds-master.singapore.sun.com:389/dc%3Dsingapore,dc%3Dsun,dc%3Dcom

nsslapd-state: referral on update

modifiersName: cn=server,cn=plugins,cn=config

modifyTimestamp: 20090923115909Z

numSubordinates: 1

Below is the dse.ldif file on the Master:

dn: cn="dc=singapore,dc=sun,dc=com",cn=mapping tree,cn=config

objectClass: top

objectClass: extensibleObject

objectClass: nsMappingTree

cn: "dc=singapore,dc=sun,dc=com"

nsslapd-state: backend

nsslapd-backend: userRoot

.