Github user jerrypeng commented on a diff in the pull request:
https://github.com/apache/storm/pull/1053#discussion_r52339067
--- Diff: conf/defaults.yaml ---
@@ -263,7 +263,7 @@ topology.state.checkpoint.interval.ms: 1000
# topology priority describing the importance of the topology in
decreasing importance starting from 0 (i.e. 0 is the highest priority and the
priority importance decreases as the priority number increases).
# Recommended range of 0-29 but no hard limit set.
topology.priority: 29
-topology.component.resources.onheap.memory.mb: 128.0
+topology.component.resources.onheap.memory.mb: 256.0
--- End diff --
So system components (i.e. acker and writer) use more memory than 128.0mb.
When I turned on cgroups, workers will just system components on them will get
consistently killed by cgroups for using more memory than allowed
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