Full_Name: Christopher Wood Version: 2.4.26 OS: Debian 6 (Squeeze) URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (173.206.227.67)
Quoth Howard Chu:
"There's a bit of a glitch here; when you modify the olcSyncrepl attribute, it is internally a delete followed by an add. When the delete occurs, the olcMirrorMode flag is implicitly turned off. (Because it is only allowed to be On for a database that is being replicated.) When the add occurs, the flag is not automatically turned back on.
"The solution is to set it explicitly in your LDAPModify request."
http://www.openldap.org/lists/openldap-technical/201109/msg00010.html
The issue is that when this implicit flag toggle happens, the directory still reports that olcMirrorMode is TRUE.
Assuming starting with a working MMR pair, this reproduces the issue:
$ ldapmodify -x -w password -D 'cn=config' -h ldapmm1
dn: olcDatabase={0}config,cn=config changetype: modify replace: olcRootPW olcRootPW: password2 - replace: olcSyncrepl olcSyncrepl: rid=1 provider=ldap://ldapmm1 binddn="cn=config" bindmethod=simple credentials=password2 searchbase="cn=config" type=refreshAndPersist retry="5 5 30 +" timeout=5 olcSyncrepl: rid=2 provider=ldap://ldapmm2 binddn="cn=config" bindmethod=simple credentials=password2 searchbase="cn=config" type=refreshAndPersist retry="5 5 30 +" timeout=5
modifying entry "olcDatabase={0}config,cn=config"
dn: olcDatabase={0}config,cn=config changetype: modify replace: olcRootPW olcRootPW: password3
modifying entry "olcDatabase={0}config,cn=config" ldap_modify: Server is unwilling to perform (53) additional info: shadow context; no update referral
$ ldapsearch -x -w password2 -D 'cn=config' -b 'olcDatabase={0}config,cn=config' -s base -h ldapmm1 '' 'olcMirrorMode' # extended LDIF # # LDAPv3 # base <olcDatabase={0}config,cn=config> with scope baseObject # filter: (objectclass=*) # requesting: olcMirrorMode #
# {0}config, config dn: olcDatabase={0}config,cn=config olcMirrorMode: TRUE
# search result search: 2 result: 0 Success
# numResponses: 2 # numEntries: 1