【发布时间】:2014-01-16 20:52:07
【问题描述】:
我最近开始在 cassandra 中添加一些数据以进行性能测试 并且还查看 nodetool cfstats 并且即使在插入大量数据后,sstable 计数仍然为 0。甚至 live 和 total 使用的空间仍然为 0。我错过了什么吗?
Keyspace: perftest
Read Count: 0
Read Latency: NaN ms.
Write Count: 126056
Write Latency: 0.028907025449006793 ms.
Pending Tasks: 0
Column Family: items
SSTable count: 0
Space used (live): 0
Space used (total): 0
SSTable Compression Ratio: 0.0
Number of Keys (estimate): 0
Memtable Columns Count: 252112
Memtable Data Size: 214612059
Memtable Switch Count: 0
Read Count: 0
Read Latency: NaN ms.
Write Count: 126056
Write Latency: 0.029 ms.
Pending Tasks: 0
Bloom Filter False Positives: 0
Bloom Filter False Ratio: 0.00000
Bloom Filter Space Used: 0
Compacted row minimum size: 0
Compacted row maximum size: 0
Compacted row mean size: 0
Average live cells per slice (last five minutes): 0.0
Average tombstones per slice (last five minutes): 0.0
【问题讨论】: