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我有1280行CF。 每行有6列。我试着去$ CF-> get_range( 'pq_questions', '', '',1200),并获取所有行,但速度太慢(约4-6秒)phpcassa get_range太慢
Column Family: pq_questions
SSTable count: 1
Space used (live): 668363
Space used (total): 668363
Number of Keys (estimate): 1280
Memtable Columns Count: 0
Memtable Data Size: 0
Memtable Switch Count: 0
Read Count: 0
Read Latency: NaN ms.
Write Count: 0
Write Latency: NaN ms.
Pending Tasks: 0
Key cache capacity: 200000
Key cache size: 1000
Key cache hit rate: 0.10998439937597504
Row cache capacity: 1000
Row cache size: 1000
Row cache hit rate: 0.0
Compacted row minimum size: 373
Compacted row maximum size: 1331
Compacted row mean size: 574
很奇怪,但读取延迟在cfstats是NaN ms
当我在Debian调用htop
我看到的最负载导致phpcassa
我只有一个节点,并使用一致性水平之一。 什么能引起这么慢quering?
泰勒,我可以请你对我的问题的回应,我想只有你可以在这里做 – Alice