Hello, It looks like there is a new possibility which allows decreasing the number of open file handles. As of v2.2, Apache ignite provides a new concept - Cache Groups [1]. Caches within a single cache group share various internal structures and it allows to mix data of caches in shared partition files. So, this feature should decrease the number of open file handles.
[1] https://apacheignite.readme.io/v2.3/docs/cache-groups Thanks! -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/