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January 6, 2016 19:50
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| jbf@ip-10-0-10-20:~$ nodetool cfstats youtube.youtube_videos | |
| Keyspace: youtube | |
| Read Count: 57115129 | |
| Read Latency: 6.236341720754933 ms. | |
| Write Count: 40699074 | |
| Write Latency: 0.031004043089530735 ms. | |
| Pending Flushes: 0 | |
| Table: youtube_videos | |
| SSTable count: 2252 | |
| SSTables in each level: [762/4, 20/10, 200/100, 367, 0, 0, 0, 0, 0] | |
| Space used (live): 340324952017 | |
| Space used (total): 340324952017 | |
| Space used by snapshots (total): 0 | |
| Off heap memory used (total): 895404792 | |
| SSTable Compression Ratio: 0.3693288084866669 | |
| Number of keys (estimate): 420234097 | |
| Memtable cell count: 184805 | |
| Memtable data size: 8572805 | |
| Memtable off heap memory used: 0 | |
| Memtable switch count: 1091 | |
| Local read count: 57115442 | |
| Local read latency: 6.237 ms | |
| Local write count: 40699216 | |
| Local write latency: 0.032 ms | |
| Pending flushes: 0 | |
| Bloom filter false positives: 198947 | |
| Bloom filter false ratio: 0.00284 | |
| Bloom filter space used: 575603888 | |
| Bloom filter off heap memory used: 575585872 | |
| Index summary off heap memory used: 163865360 | |
| Compression metadata off heap memory used: 155953560 | |
| Compacted partition minimum bytes: 51 | |
| Compacted partition maximum bytes: 51012 | |
| Compacted partition mean bytes: 1535 | |
| Average live cells per slice (last five minutes): 0.990175652137526 | |
| Maximum live cells per slice (last five minutes): 1.0 | |
| Average tombstones per slice (last five minutes): 0.0 | |
| Maximum tombstones per slice (last five minutes): 0.0 | |
| ---------------- | |
| jbf@ip-10-0-10-20:~$ nodetool compactionstats | |
| pending tasks: 1347 | |
| compaction type keyspace table completed total unit progress | |
| Compaction youtube youtube_videos 483840950846 585149590142 bytes 82.69% | |
| Compaction natural dailymotion_videos 66303074 162906772 bytes 40.70% | |
| Compaction natural dailymotion_videos.dailymotion_videos_account_idx 21098811 218540859 bytes 9.65% | |
| Compaction natural twitter_accounts2_cidx_username 103912637 220915107 bytes 47.04% | |
| Active compaction remaining time : 0h25m15s | |
| jbf@ip-10-0-10-20:~$ nodetool cfhistograms youtube youtube_videos | |
| youtube/youtube_videos histograms | |
| Percentile SSTables Write Latency Read Latency Partition Size Cell Count | |
| (micros) (micros) (bytes) | |
| 50% 2.00 24.00 2759.00 1331 20 | |
| 75% 4.00 29.00 5722.00 1916 29 | |
| 95% 24.00 50.00 42510.00 3311 42 | |
| 98% 29.00 72.00 88148.00 3973 50 | |
| 99% 35.00 124.00 126934.00 4768 60 | |
| Min 0.00 3.00 150.00 51 0 | |
| Max 86.00 785939.00 1955666.00 51012 642 |
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