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Ring buffer OutOfMemoryError: GC overhead limit exceeded #10189
this ring buffer test has failed for the first time with an OOME,
8 boxes, aws-ec2 c4.2xlarge
D4M4C8 (dedicated member box 4, members 4, client 8)
memberOps "-Xms2G -Xmx2G"
Hprof java.lang.OutOfMemoryError: GC overhead limit exceeded
all though is't named async we do wait for the result after the call.
looks like build up of add msgs
this seems to be the store of the ringbuffer, and not the ringbuffer itself. I checked the Store implementation and its a plain HashMap, which just accumulates stuff (https://github.com/hazelcast/hzCmd-bench/blob/zeta/src/main/java/hzcmd/ring/Store.java), so the OOM is justified and its outside our jurisdiction
@Danny-Hazelcast please confirm, and update issue accordingly.
We discussed this offline, the
next version of the store