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DRAFT KB-XXXX "Inconsistent DBID on GW1" error thrown in checkengine script and engines fail to boot up with " file not found" error in db_**.log


After attempting to start the engines via the start-suite script, the checkengine script displays an error like this:

On examining the db_**.log for the relevant engine, the following error is seen:

YYYY-MM-DD HH:MM:SS [PO1] {ap39.kdb ,6713} () FATAL .a.db " file not found"

Both of the above symptoms must be present before proceeding to the following sections.


The migration directory present in <APPIAN_HOME>/server/*engine* directory is missing. This may be due to accidentally deleting it or moving it to a different location.


Re-install Appian and test the install/upgrade again.

Affected Versions

This article applies to Appian 17.2 and earlier.

Last Reviewed: January 2018