13:15:26,530 |-INFO in ch.qos.logback.core.db.JNDIConnectionSource@782817d7 - Looking up [java:comp/env/jdbc/datasource] in JNDI is the output from above, which is the correct location. On another note, I got it working by changing my TomEE config as follows. server.xml <GlobalNamingResources> <Resource name="jdbc/datasource" auth="Container" type="javax.sql.DataSource" factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" maxActive="100" maxIdle="30" maxWait="10000" username="user" password="secret" driverClassName="oracle.jdbc.driver.OracleDriver" url="jdbc:oracle:thin:@(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = localhost)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED)(SERVICE_NAME = SERVICE)))" /> </GlobalNamingResources> context.xml <ResourceLink name="jdbc/datasource" global="jdbc/datasource" type="javax.sql.DataSource"/> logback.xml <appender name="DB" class="ch.qos.logback.classic.db.DBAppender"> <connectionSource class="ch.qos.logback.core.db.JNDIConnectionSource"> <jndiLocation>java:jdbc/datasource</jndiLocation> </connectionSource> </appender> But as you can see here, I have to references TomEE's global resource which doesn't feel correct. From what I can tell TomEE initializes its global resources, initializes logging, and then registers the comp/env resources. You'd except to be able to look up java:comp/env/jdbc/datasource with this configuration as well, but that is not the case and the lookup fails. -- View this message in context: http://logback.10977.n7.nabble.com/DBAppender-fails-for-find-jndi-dataSource... Sent from the Users mailing list archive at Nabble.com.