Appian Community

Browse Knowledge Base Articles

Find product support articles for frequently-asked-about topics

Latest Knowledge Base Articles

KB-2144 XOR node with multiple incoming flows hangs on second execution
- Revision #7
- on 17 Aug 2020 4:53 PM
Symptoms When an XOR node with more than one input evaluates for the second time in a process instance, the process remains active on that node and never continues...
KB-2143 Database calls fail with "Connection has already been closed" for self-managed environments
- Revision #21
- on 17 Aug 2020 2:45 PM
Symptoms After an upgrade or after new database calls are configured for an self-managed installation, calls to the database from the application server fail and the...
KB-1922 Unable to add SQL Server data source from Admin Console due to "Failed datasource validation"
- Revision #7
- on 12 Aug 2020 2:07 PM
Symptoms From the Admin Console, a user is unable to add a SQL Server data source hosted in Microsoft Azure Cloud. The following error is printed in the tomcat-stdOut...
KB-2141 Unable to add MySQL data source from Admin Console due to "Failed datasource validation" and SSL error
- Revision #9
- on 12 Aug 2020 1:32 PM
Symptoms Users are unable to add a MySQL data source from the Admin Console. The following error is printed in the application server log: ERROR com.appiancorp.expr...
KB-1718 Tomcat fails to deploy Appian or start all services successfully
- Revision #19
- on 11 Aug 2020 9:10 PM
Symptoms Symptom 1 Tomcat fails with the following error in <APPIAN_HOME>/logs/tomcat-stdOut.log : ERROR org.hibernate.connection.DatasourceConnectionProvider...