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From Kai Wang <>
Subject [Off heap memory used (total)] in cfstats
Date Fri, 08 Jan 2016 23:39:59 GMT

When I switch a big table from STCS to LCS, I notice high off heap memory
usage using nodetool cfstats. "*Off heap memory used (total)*" shows +10G

Eventually my nodes died because of OOM. How do I throttle off heap usage?
The only thing I see in cassandra.yaml is *memtable_offheap_space_in_mb. *Is
that the only knob?


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