What do you mean by "embedded instances"? if it's org.apache.ignite.Ignite object then we have two, one for each .war application deployed.
And what do you mean by "not properly stopped and / or disconnected"? The application call org.apache.ignite.Ignite.close() only when Tomcat shutdown. What if there are intermittent network failures? There are 2 GridKernalContextImpl found in the heap: Class Name | Objects | Shallow Heap | Retained Heap ------------------------------------------------------------------------------------------- .*GridKernalContextImpl.* | | | org.apache.ignite.internal.GridKernalContextImpl| 1 | 248 | >= 1,596,360 org.apache.ignite.internal.GridKernalContextImpl| 1 | 248 | >= 1,599,712 Total: 2 entries (23,992 filtered) | 2 | 496 | ------------------------------------------------------------------------------------------- you might find the fully expanded histogram here: https://drive.google.com/open?id=0BwY2dxDlRYhBR3pnYUM1cjZiNDg thx, Tom -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Ignite-1-6-0-suspected-memory-leak-from-DynamicCacheDescriptor-tp9443p9551.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.