Rajesh, Ignite has only non-unique indexes. For information on how to create them please refer to the documentation: https://apacheignite-sql.readme.io/docs. You can do this either via cache configuration or using CREATE INDEX command depending on your use case.
As for the logging, here is some information that can be useful: https://apacheignite.readme.io/docs/logging -Val -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
