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KB-2250 How to run the Appian Log Generator and Diagnostics scripts
- Revision #17
- on 28 Aug 2025 2:30 PM
Purpose Appian is made up of multiple components, all of which must remain healthy for the platform to function properly. Traditionally, checking the health of each...
KB-2329 How to use the Appian Support Logs Collector Script
- Revision #16
- on 28 Aug 2025 2:29 PM
The Appian Logs Collector Script is a quick and efficient way to collect data required for a investigation. To use the tool, please follow these steps. Table of Contents...
KB-1731 Engines fail to start after upgrade with “ShaMismatchException” or "EngineReplayException"
- Revision #14
- on 5 Aug 2025 3:53 PM
Symptoms Following an upgrade, the Appian Engines fail to start successfully. One of the following errors are also observed in the service_manager.log : K sha256...
KB-1577 "Expected 256, was 257" exception regarding Appian engine security token prevents engine startup
- Revision #11
- on 1 Aug 2025 3:50 PM
Symptoms Appian engines fail to reach RUNNING state, PRIMARY mode, and the following exception is printed in the service_manager.log file (located at <APPIAN_HOME>...
KB-2346 WebApp Startup Delay Due to Analytics Propagation Stall
- Revision #12
- on 30 Jul 2025 1:40 PM
Symptoms In certain Appian environments—most commonly in Appian on Kubernetes (AoK) deployments, but also observed in classic installations—the Application Server startup...