Ingres 9.2 Migration Guide - Actian

How You Upgrade Using the Upgradedb UtilityReview Ingres ConfigurationThe upgrade preserves your original Ingres installation parameters. You shouldreview the configuration because some parameters may change from versionto version. For information on parameters that changed, check the Readme foryour new version of Ingres.Review your parameter settings by running Configuration-By-Forms or VisualConfigurator. Especially pay attention to major items such as startup countsand DBMS cache settings.Note: If you disabled the Remote Command Server in an earlier step of theupgradedb process, use EditCount to restore its startup count to the originalvalue.(Optional) Reapply Optimizer StatisticsNote: This step is required only if upgrading from OpenIngres 1.x or Ingres6.4. Ingres computes additional metrics that those releases did not have.To take advantage of the new metrics, regenerate the optimizer statisticsusing the procedures of your application system.Checkpoint the DatabaseCheckpoints and journals from your original Ingres version will not work withthe newer version, so do not omit or delay this step.Checkpoint each database, including the iidbdb. If the database was journaledpreviously, use the +j flag to turn on journaling.To know which databases were journaled, see the infodb output from the stepRecord Database Information.The iidbdb should always be journaled, regardless of whether it was journaledin the original installation.Install Upgraded ApplicationsTo perform the last step of the upgrade procedure:1. Install the Ingres versions of the applications.2. Restore user logins3. Resume normal operation.Upgrading Using Upgradedb 53