Globally Distributed Objects (GDOs) are named objects that are kept consistent across all nodes and vprocs in a Teradata Vantage system. GDOs store system settings and configuration information that is shared by all nodes of the system.
The TPA Reset utility, tpareset, resets the database. TPA reset is used when certain values in the TdgssUserConfigFile.xml configuration file are modified.
For many TDGSS configuration changes a TPA reset is not required for the new values in the TDGSSCONFIG GDO to take effect. The following can be modified without a TPA reset:
- Any attribute or property whose name begins with "Ldap" for KRB5 and LDAP
- MechanismEnabled property for KRB5, LDAP, JWT, and PROXY
- AuthorizationSupported property for KRB5 and LDAP
- LDAP Service ID and password with no impact to user LDAP logons
- The following properties in the PROXY mechanism:
- Any JWT mechanism property whose name begins with "JWT"
- All canonicalizations including the lightweight authorization structures
The following configuration changes require a TPA reset:
- Changes to any mechanism property not mentioned earlier
- QoP configuration
- Local or global policy configuration, including service name changes
- TDNEGO and SPNEGO
The run_tdgssconfig command is run when the configuration file is updated. It indicates if a TPA reset is required.