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Tomcat is not able to start after changes <APPIAN_HOME>/conf/tomcat-resources.xml The following error can be seen in the application server log:
<APPIAN_HOME>/conf/tomcat-resources.xml
WARNING [Tomcat JDBC Pool Cleaner[xxxxxxxxxx:xxxxxxxx]] org.apache.tomcat.jdbc.pool.ConnectionPool.abandon Connection has been abandoned PooledConnection[com.xxx.xxx.xxx.xxx]:java.lang.Exception
This issue occurs when <APPIAN_HOME>/conf/tomcat-resources.xml has the below property set. The error above occurs mainly due to removeAbandonedTimeout value present, and removeAbandoned is set to "true"
removeAbandonedTimeout
removeAbandoned
"true"
removeAbandoned="true"removeAbandonedTimeout="30"logAbandoned="true"
Set removeAbandoned ="false"
removeAbandoned ="false"
or
Remove the above lines from cause from the file <APPIAN_HOME>/conf/tomcat-resources.xml
The documentation for Configuring Relational Databases can be found .
The documentation doesn't recommend having the below in <APPIAN_HOME>/conf/tomcat-resources.xml