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DRAFT KB-XXXX Engines fail to boot up with " file not found" error


User tries to start engines via the start-suite script.

Checkengine script displays an error of the following type:

On examining the db_** log for the relevant engine, you see an error of the following type:

2016-10-24 21:05:48 [CH1] {channels43.kdb ,6713} () FATAL .a.db " file not found"


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


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

Affected Versions

  • This article applies to all versions of Appian older than v.17.3.