Hi, If you look at the message, on the very bottom it tells you: Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource
This means that the class in question is not on the classpath of the Java VM. Add the relevant library to the classpath and it should work. To diagnose: 1. start w/out this bean, and use visualvm/jinfo/jps or the logs inside ignite to see what the classpath is. 2. if you see that the relevant library is not there, add it to the place where ignite will look for it. usually in the ${ignite_home}/libs dir. 3. restart w/out that bean and verify that the classpath contains your jar file 4. Once you verified that the classpath is correct, start w/the bean in question. see: https://ignite.apache.org/docs/latest/installation/installing-using-docker#deploying-user-libraries https://stackoverflow.com/questions/17151058/how-can-i-view-the-classpath-and-jvm-args-of-an-executing-java-program-in-window Also Ignite will show you the classpath of the process: look for: [INFO ][main][IgniteKernal%node1] Classpath value: (here you need to start ignite w/the vm system property IGNITE_QUIET=false) https://ignite.apache.org/docs/latest/logging#overview Thanks, Alex -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/