Hi, I upgraded my ES from 2.6 to 2.7 now all my histories are missing. How do I recover these?
Histories lost after upgrade
Can you check that the modules successfully installed during the upgrade process? You can check your modules page and see if they are loaded, or you can watch the bootup logging to see if it is loading the modules. It sounds like you upgraded the core, but have no modules perhaps.
If anything has actually happened to your data, nothing in the upgrade will destroy the databases at mango/databases, and if any automatic backup was enabled from within Mango, you should have many backups in your mango/backups folder. You will probably want to restore your H2 database and MangoNoSQL database. You can restore H2 in the "H2 Database Backup Settings" on the System Settings page, and you can restore you MangoNoSQL Database on the NoSQL page, restore database tab. If your NoSQL database is performing incremental backups, be sure to select the oldest backup to begin a complete restore.