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From mcasandra <mohitanch...@gmail.com>
Subject Key cache hit rate
Date Fri, 15 Apr 2011 18:25:06 GMT

How to intepret  "Key cache hit rate"? What does this no mean?


Keyspace: StressKeyspace
        Read Count: 87579
        Read Latency: 11.792417360326105 ms.
        Write Count: 179749
        Write Latency: 0.009272318622078566 ms.
        Pending Tasks: 0
                Column Family: StressStandard
                SSTable count: 59
                Space used (live): 52432078035
                Space used (total): 52432078035
                Memtable Columns Count: 229
                Memtable Data Size: 114103248
                Memtable Switch Count: 375
                Read Count: 87579
                Read Latency: NaN ms.
                Write Count: 179751
                Write Latency: 0.007 ms.
                Pending Tasks: 0
                Key cache capacity: 1000000
                Key cache size: 78576
                Key cache hit rate: 3.8880248833592535E-4
                Row cache: disabled
                Compacted row minimum size: 182786
                Compacted row maximum size: 5839588
                Compacted row mean size: 532956


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