Appian Community

Browse Knowledge Base Articles

Find product support articles for frequently-asked-about topics

Latest Knowledge Base Articles

KB-1280 "com.appiancorp.kougar.driver.exceptions.Signal: type" error thrown when starting JBoss in a distributed environment
- Revision #2
- on 23 Jul 2018 5:45 PM
Symptoms When trying to start JBoss in an environment where where the engines and the application server are hosted on separate physical servers, JBoss fails to start...
KB-1288 Errors related to cache config after upgrade
- Revision #2
- on 23 Jul 2018 5:45 PM
Symptoms After starting JBoss for the first time following an upgrade, one of the following errors may be printed in the console and the application server log: ERROR...
KB-1260 500 Internal Server Error thrown after session timeout
- Revision #3
- on 23 Jul 2018 5:44 PM
This issue has been resolved in an Appian hotfix/new Appian version. Please apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian...
KB-1263 Deadlock errors with SQL Server
- Revision #2
- on 23 Jul 2018 5:43 PM
Symptoms In the application server log you will see the following sets of errors indicating deadlocks: org.hibernate.util.JDBCExceptionReporter logExceptions SEVERE...
KB-1194 "Validation Failed... <number> change sets check sum" error thrown after migrating primary database from one vendor to another
- Revision #2
- on 23 Jul 2018 5:42 PM
Symptoms When you are migrating your primary database from one vendor to another, the system fails to come up with the following error in the application server log...