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DRAFT KB-XXXX Users unable to login via Appian authentication after upgrade


After an Appian upgrade, users are unable to log into the environment when using basic Appian authentication.

The db_PE**.log file located in <APPIAN_HOME>\logs should have entries of the following type which indicates the engine migration was successful. However the entries of the following type are missing in this log file which indicates the <APPIAN_HOME>\server\personalization\gw1\ag**.kdb file was not migrated over.

[PE1] {ag3.kdb 0} (Base) INFO .migrate "<PERCENTAGE OF MIGRATION>% Migrating from version: <APPIAN VERSION>" 


Personalization engine kdb was not properly copied over during the migration.


Perform the upgrade again and ensure that all KDB files are properly copied during the migration. The Copy Your Engine Data section of the Upgrade Guide explains the proper way to migrate engine data during an Appian upgrade.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: August 2018