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
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