An update to the current PingDirectory Server release includes significant changes as well as the introduction of a topology registry, which stores information that was stored previously in the admin backend, such as server instances, instance and secret keys, server groups, and administrator user accounts. For the admin backend to be migrated, the update tool must be provided LDAP authentication options to the peer servers of the server being updated.
The LDAP connection security option requested (either plain, TLS, StartTLS, or SASL) must be configured on every server in the topology. The LDAP credentials must be present on every server in the topology, and must have permissions to read from the admin backend and the config backend of every server in the topology. For example, a root DN user with the inherit-default-privileges set to true (such as the cn=Directory Manager user) that exists on every server can be used.
- Changes to clustered configurations are not allowed in mixed-version clusters. This
applies to configuration in the
cn=Cluster,cn=configsubtree and only applies to servers with matching cluster names. Consider this when updating multiple servers in a cluster.
- To make clustered configuration changes in a mixed-version cluster, choose one of
the following options:
- Update each server to the same version.
- Temporarily split up the cluster by changing the
cluster-nameproperty on the server instance configuration objects.
- After you have updated all the servers to the same version, you can again make clustered configuration changes and those changes will mirror across the topology.
$ bin/dsframework set-server-properties \ --serverID serverID \ --set ldapport:port \ --set ldapsport:port \ --set startTLSEnabled:true
- When the first server is being updated, all other servers in the topology must be online. When updating additional servers, all topology information will be obtained from one of the servers that has already been updated. The update tool will connect to the peer servers of the server being updated to obtain the necessary information to populate the topology registry. The provided LDAP credentials must have read permissions to the config and admin backends of the peer servers.
- The instance name is set on every server, and is unique across all servers in the topology.
The instance name is a server’s identifier in the topology. After all servers in the topology
have been updated, each server will be uniquely identified by its instance name. Once set, the
name cannot be changed. If needed, the following command can be used to set the instance name
of a server prior to the update:
$ bin/dsconfig set-global-configuration-prop \ --set instance-name:uniqueName
- The cluster-wide configuration is synchronized on all servers in the topology. Older versions
have some topology configuration under cn=cluster,cn=config (JSON attribute and field
constraints). These items did not support mirrored cluster-wide configuration data. An update should avoid
custom configuration changes on a server being overwritten with the configuration on the mirrored subtree master.
To synchronize the cluster-wide configuration data across all servers in the topology, run the
config-diff tool on each pair of servers to determine the differences, and
use dsconfig to update each instance using the config-diff output.
$ bin/config-diff --sourceHost hostName \ --sourcePort port \ --sourceBindDN bindDN \ --sourceBindPassword password \ --targetHost hostName \ --targetPort port \ --targetBindDN bindDN \ --targetBindPassword password
If any of these conditions are not satisfied, the update tool will list all of the errors encountered for each server, and provide instructions on how to fix them.