KB-1732 Engine in FATAL state after applying Windows patch KB4338823

Symptoms

Engine(s) will transition to a FATAL state or will fail to start, throwing the following error in the corresponding engine db_*.log file found in <APPIAN_HOME>/logs/:

"FATAL .a.db "bind: Only one usage of each socket address (protocol/network address/port) is normally permitted."

Cause

Windows patch KB4338823 is known to cause network port issues. This patch applies to Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1.

Action

Revert to previous Windows patch or install Windows patch KB4345459.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: September 2018

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