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OpenLDAP 2.4 Upgrade

Project ID: 
181
Current stage: 
Manager: 
Unit: 
What: 

Description: Upgrade LDAP master and slaves to OpenLDAP 2.4

Deliverables:

All LDAP servers running OpenLDAP 2.4

See the final report.

Why: 

Customer: All

Case statement:

Our SL5 LDAP servers are running OpenLDAP 2.3 (2.3.43 on the slaves,
2.3.38 on the master). This is no longer being actively developed or
supported by the openldap community. 2.4.x has reached 2.4.23 and
appears stable and reliable so we should upgrade our servers
accordingly when we move them to SL6. We are already running 2.4 on SL6 clients.

When: 

Status:

Timescales:

Priority: Medium

Time:

How: 

Proposal:

Resources: 1-2 weeks of CO time.

Plan:

  • Test syncrepl replication using 2.4 (for slaves)
  • Test slaprepl (standard client) replication against 2.4 server (from
    both 2.3 and 2.4 clients)
  • Test prometheus and any other tools against 2.4.
  • Upgrade slaves
  • Upgrade master
Other: 

Dependencies:

Risks:

Milestones

Proposed date Achieved date Name Description
2011-08-31 2011-08-31 1.0 Test syncrepl (master->slave) replication using OpenLDAP 2.4 on SL6
2011-10-31 2011-08-31 2.0 Test slaprepl (master->client) replication from 2.4 master, for both 2.3 and 2.4 clients
2012-09-01 2011-10-31 3.0 Test Prometheus against 2.4 master
2012-04-26 2012-04-30 4.0 Upgrade LDAP slaves
2012-11-27 2012-05-31 5.0 Upgrade LDAP master