Hi Sumanta, Please have a look at https://issues.apache.org/jira/browse/IGNITE-6828
This error message comes from Spring framework (org.springframework.data:spring-data-commons). It is not Ignite message and does not affect Ignite logging, so you can just ignore it. To avoid such message you could do the following: 1. Configure Slf4j logging for Spring 2. Exclude Slf4j dependency from Spring in your pom file: <groupId>org.springframework.data</groupId> <artifactId>spring-data-commons</artifactId> <version>some verion here</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> </exclusion> </exclusions> Thank you, Alexey -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/