You can give it a try and switch to OFFHEAP if it won’t work well for your use case.
However don’t forget to tune garbage collector appropriately. You can refer to this page [1] as an example. [1] https://apacheignite.readme.io/docs/jvm-and-system-tuning <https://apacheignite.readme.io/docs/jvm-and-system-tuning> — Denis > On May 21, 2016, at 6:09 PM, tomk <rrrtomtom...@gmail.com> wrote: > > So, > If each my node(machine) has less than 20 (in real 16) GB then I should > use on-heap ? > > > > -- > View this message in context: > http://apache-ignite-users.70518.x6.nabble.com/Off-Heap-Memory-simpler-explanation-than-in-docs-tp4790p5069.html > Sent from the Apache Ignite Users mailing list archive at Nabble.com.