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From Radim Kolar <>
Subject live ratio counting
Date Thu, 10 May 2012 12:07:14 GMT
liveratio calc should do nothing if memtable has 0 columns. I did manual 
flush before this.

  WARN [MemoryMeter:1] 2012-05-10 13:21:19,430 (line 181) 
setting live ratio to maximum of 64 instead of Infinity
  INFO [MemoryMeter:1] 2012-05-10 13:21:19,431 (line 186) 
CFS(Keyspace='rapidshare', ColumnFamily='resultcache') liveRatio is 64.0 
(just-counted was 64.0).  calculation took 1ms for 0 columns

liveratio calculation logic also needs to be changed because it is based 
on assumption that workloads do not change. I propose to get 
configuration option (per node is enough) for maximum interval between 
liveratio calculation and raise maximum liveratio from 64 to at least 80.

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