here is part of log. actually record is 419.
ponto:(admin)log/cassandra>grep "to maximum of 64" system.log.1
WARN [MemoryMeter:1] 2012-02-03 00:00:19,444 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 64.9096047648211
WARN [MemoryMeter:1] 2012-02-08 00:00:17,379 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 68.81016452376322
WARN [MemoryMeter:1] 2012-02-08 00:00:32,358 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 88.49747308025415
WARN [MemoryMeter:1] 2012-02-09 00:00:08,448 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 76.2444888765154
WARN [MemoryMeter:1] 2012-02-10 18:18:52,677 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 142.22477982642255
WARN [MemoryMeter:1] 2012-02-20 00:00:53,753 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 88.19832386767173
WARN [MemoryMeter:1] 2012-03-02 10:41:00,232 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 419.9607495592804
WARN [MemoryMeter:1] 2012-03-07 14:13:15,141 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of Infinity
WARN [MemoryMeter:1] 2012-03-08 00:01:12,766 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 94.20215772717702
WARN [MemoryMeter:1] 2012-03-09 00:00:38,633 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 98.54003447121715
WARN [MemoryMeter:1] 2012-03-11 00:00:13,243 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 193.14262214179965
WARN [MemoryMeter:1] 2012-03-14 00:00:26,709 Memtable.java (line 181)
setting live ratio to maximum of 64 instead of 103.88360138951437
