Ingres 9.2 Migration Guide - Actian

How You Prepare for Development Installation UpgradeCheckpoint Template ChangesThe Ingres checkpoint template file, cktmpl.def, may change from release torelease. If you have customized your checkpoint template file, you mustreview and verify your changes with the new Ingres version.If you are upgrading from Ingres 6.4, or from OpenIngres 1.2, you must redoyour template changes. The cktmpl.def file format has been expanded sinceIngres 6.4 and is therefore not compatible. The OpenIngres 1.2 template fileformat is similar to the current one, but additional entries are required. Yourold checkpoint template can serve as a guide.Tip: If your checkpoint template was customized to do multiple locationcheckpoints in parallel, you may be able to remove this customization entirely.Ingres supports parallel checkpoint and rollforwarddb processing directly.If upgrading from an Ingres II release, compare the revised checkpointtemplate against the one installed with the new Ingres version. The templatecustomizations may no longer be necessary due to new features in checkpointand rollforward. For example: newer versions of Ingres support parallelcheckpoint and rollforwarddb processing, so a checkpoint template customizedto do multiple location checkpoints in parallel need not be done.For more information on the format of the checkpoint template files, see theDatabase Administrator Guide.Checkpoint and Rollforward ChangesCheckpoints and journals typically are not compatible from one version to thenext. After an installation is upgraded, you must assume that all oldcheckpoints and journal files are no longer usable with the new version ofIngres.Rollforwarddb no longer supports the -noblobs option because it makes thetable physically inconsistent and unusable.Creating a New Ingres Development Environment 37