Hi i have an ignite 1.7.0 cluster with 3 nodes running , i have 3 PARTITIONED ATOMIC CACHES and 2 REPLICATED ATOMIC CACHES, Most of these caches are populated with events data, so each cache entry is short lived its inserted, processed later by some task and removed. so the caches are pretty much very dynamic. Recently the load in our system has increased (more events were received and generated) and we started experiencing out of memory fails once in while (several days depending on machine size). I have created several heap dumps and noticed the largest retained objects in memory is by the following classes: GridDhtLocalPartition, ConccurentHashMap8,ConccurentHashMap8$Node[]. I can see the GridDhtLocalPartition has a ConccurentHashMap8 so most likely all three reference the same thing. My question what is this class and why does it retain memory, entities in my caches are usually short lived (several minutes in most caches) so i would expect the memory to be released? any hints on how to continue my investigation would be great. Thanks
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