Berkeley DB

Upgrading Databases

When upgrading to a new release of Berkeley DB, it may be necessary to upgrade the on-disk format of already-created database files. Berkeley DB database upgrades are done in place, so are potentially destructive. This means that if the system crashes during the upgrade procedure, or if the upgrade procedure runs out of disk space, the databases may be left in an inconsistent and unrecoverable state. To guard against failure, the procedures outlined in “Upgrading Berkeley DB Applications” should be carefully followed. If you are not performing catastrophic archival as part of your application upgrade process, you should at least copy your database to archival media, verify that your archival media is error-free and readable, ...