[MTCGA]: new failures in builds [6088859] needs to be handled

Hi Igniters, I've detected some new issue on TeamCity to be handled. You are more than welcomed to help. *New test failure in master IgniteTopologyValidatorGridSplitCacheTest.testTopologyValidator https://ci.ignite.apache.org/project.html?projectId=IgniteTests24Java8&testNameId=245908627

Thin client data structures

Igniters, I was asked a few times about Data Structures [1] in thin clients. While there are plans to add them eventually, it is possible to implement them on top of the existing thin client cache API. I'd like to share a short blog post which demonstrates this [2]. [1] https://ignite.apache.org