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From "" <>
Subject memtable_offheap_space_in_mb and memtable_cleanup_threshold
Date Mon, 23 Feb 2015 20:05:56 GMT
Hi everyone!

I do write only workload (into one column family) and experiment with 
offheap-objects memtable space.

I set parameters to:/
//memtable_offheap_space_in_mb = 51200  # 50Gb//
//memtable_cleanup_threshold = 0.99/

and expect that flush will not be triggered until available /memtable 
offheap space /reaches ~50Gb. But flushes are triggered
before that limit. System monitor shows that in used only ~16Gb at that 
moment (linux+jvm+heap+...).

Why such thing is happened?


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