我们利用 Elasticsearch 官方提供的 benchmark 压测工具 [rally](https://github.com/elastic/rally) 对华北一可用区B的Elasticsearch集群（V5.5.1）进行测试，测试结果如下：
8核16G 3个节点
| Metric | Operation | Value | Unit |
|---|---|---|---|
| Indexing time | 31.7303 | min | |
| Merge time | 9.5995 | min | |
| Refresh time | 1.93053 | min | |
| Flush time | 0.0881167 | min | |
| Merge throttle time | 1.54493 | min | |
| Total Young Gen GC | 58.079 | s | |
| Total Old Gen GC | 0.196 | s | |
| Heap used for segments | 18.3168 | MB | |
| Heap used for doc values | 0.103638 | MB | |
| Heap used for terms | 17.1259 | MB | |
| Heap used for norms | 0.0717773 | MB | |
| Heap used for points | 0.217482 | MB | |
| Heap used for stored fields | 0.797966 | MB | |
| Segment count | 94 | ||
| Min Throughput | index-stats | 100.045 | ops/s |
| Median Throughput | index-stats | 100.068 | ops/s |
| Max Throughput | index-stats | 100.125 | ops/s |
| 50th percentile latency | index-stats | 3.61395 | ms |
| 90th percentile latency | index-stats | 4.04719 | ms |
| 99th percentile latency | index-stats | 4.96298 | ms |
| 99.9th percentile latency | index-stats | 16.8928 | ms |
| 100th percentile latency | index-stats | 23.5338 | ms |
| Min Throughput | node-stats | 100.031 | ops/s |
| Median Throughput | node-stats | 100.09 | ops/s |
| Max Throughput | node-stats | 100.506 | ops/s |
| 50th percentile latency | node-stats | 4.48539 | ms |
| 90th percentile latency | node-stats | 5.0753 | ms |
| 99th percentile latency | node-stats | 7.10029 | ms |
| 99.9th percentile latency | node-stats | 17.5065 | ms |
| 100th percentile latency | node-stats | 23.1605 | ms |
| Min Throughput | default | 49.9519 | ops/s |
| Median Throughput | default | 50.013 | ops/s |
| Max Throughput | default | 50.0216 | ops/s |
| 50th percentile latency | default | 15.2663 | ms |
| 90th percentile latency | default | 16.0737 | ms |
| 99th percentile latency | default | 18.9459 | ms |
| 99.9th percentile latency | default | 40.3196 | ms |
| 100th percentile latency | default | 45.0553 | ms |
| Min Throughput | term | 200.063 | ops/s |
| Median Throughput | term | 200.091 | ops/s |
| Max Throughput | term | 200.174 | ops/s |
| 50th percentile latency | term | 2.59966 | ms |
| 90th percentile latency | term | 3.12504 | ms |
| 99th percentile latency | term | 31.4645 | ms |
| 99.9th percentile latency | term | 43.7732 | ms |
| 100th percentile latency | term | 45.5124 | ms |
| Min Throughput | phrase | 200.03 | ops/s |
| Median Throughput | phrase | 200.049 | ops/s |
| Max Throughput | phrase | 200.075 | ops/s |
| 50th percentile latency | phrase | 3.88241 | ms |
| 90th percentile latency | phrase | 5.3865 | ms |
| 99th percentile latency | phrase | 44.4824 | ms |
| 99.9th percentile latency | phrase | 54.733 | ms |
| 100th percentile latency | phrase | 55.2758 | ms |
| Min Throughput | country\_agg\_uncached | 2.75134 | ops/s |
| Median Throughput | country\_agg\_uncached | 2.76574 | ops/s |
| Max Throughput | country\_agg\_uncached | 2.8003 | ops/s |
| 50th percentile latency | country\_agg\_uncached | 162393 | ms |
| 90th percentile latency | country\_agg\_uncached | 222884 | ms |
| 99th percentile latency | country\_agg\_uncached | 234288 | ms |
| 99.9th percentile latency | country\_agg\_uncached | 235730 | ms |
| 100th percentile latency | country\_agg\_uncached | 235940 | ms |
| Min Throughput | country\_agg\_cached | 100.051 | ops/s |
| Median Throughput | country\_agg\_cached | 100.073 | ops/s |
| Max Throughput | country\_agg\_cached | 100.138 | ops/s |
| 50th percentile latency | country\_agg\_cached | 2.87947 | ms |
| 90th percentile latency | country\_agg\_cached | 3.31356 | ms |
| 99th percentile latency | country\_agg\_cached | 6.88291 | ms |
| 99.9th percentile latency | country\_agg\_cached | 30.7471 | ms |
| 100th percentile latency | country\_agg\_cached | 37.4828 | ms |
| Min Throughput | scroll | 35.6468 | ops/s |
| Median Throughput | scroll | 35.81 | ops/s |
| Max Throughput | scroll | 35.8374 | ops/s |
| 50th percentile latency | scroll | 296588 | ms |
| 90th percentile latency | scroll | 427849 | ms |
| 99th percentile latency | scroll | 457200 | ms |
| 100th percentile latency | scroll | 460396 | ms |
| Min Throughput | expression | 1.28785 | ops/s |
| Median Throughput | expression | 1.31216 | ops/s |
| Max Throughput | expression | 1.31935 | ops/s |
| 50th percentile latency | expression | 78301.4 | ms |
| 90th percentile latency | expression | 99426.7 | ms |
| 99th percentile latency | expression | 103425 | ms |
| 100th percentile latency | expression | 103679 | ms |
2核8G 3个节点
| Metric | Operation | Value | Unit |
|---|---|---|---|
| Indexing time | 43.8383 | min | |
| Merge time | 22.5664 | min | |
| Refresh time | 9.2856 | min | |
| Flush time | 0.0502833 | min | |
| Merge throttle time | 2.30762 | min | |
| Total Young Gen GC | 418.967 | s | |
| Total Old Gen GC | 3.078 | s | |
| Heap used for segments | 17.7271 | MB | |
| Heap used for doc values | 0.102936 | MB | |
| Heap used for terms | 16.5306 | MB | |
| Heap used for norms | 0.071167 | MB | |
| Heap used for points | 0.209009 | MB | |
| Heap used for stored fields | 0.813393 | MB | |
| Segment count | 96 | ||
| Min Throughput | index-stats | 100.035 | ops/s |
| Median Throughput | index-stats | 100.064 | ops/s |
| Max Throughput | index-stats | 100.099 | ops/s |
| 50th percentile latency | index-stats | 3.98357 | ms |
| 90th percentile latency | index-stats | 5.42446 | ms |
| 99th percentile latency | index-stats | 17.3357 | ms |
| 99.9th percentile latency | index-stats | 38.0944 | ms |
| 100th percentile latency | index-stats | 44.4198 | ms |
| Min Throughput | node-stats | 100.011 | ops/s |
| Median Throughput | node-stats | 100.089 | ops/s |
| Max Throughput | node-stats | 100.539 | ops/s |
| 50th percentile latency | node-stats | 4.45035 | ms |
| 90th percentile latency | node-stats | 6.89122 | ms |
| 99th percentile latency | node-stats | 19.1262 | ms |
| 99.9th percentile latency | node-stats | 39.2981 | ms |
| 100th percentile latency | node-stats | 44.4663 | ms |
| Min Throughput | default | 25.5403 | ops/s |
| Median Throughput | default | 26.1976 | ops/s |
| Max Throughput | default | 28.0422 | ops/s |
| 50th percentile latency | default | 18200.4 | ms |
| 90th percentile latency | default | 26643.4 | ms |
| 99th percentile latency | default | 28551 | ms |
| 99.9th percentile latency | default | 28734.5 | ms |
| 100th percentile latency | default | 28751.2 | ms |
| Min Throughput | term | 198.796 | ops/s |
| Median Throughput | term | 200.081 | ops/s |
| Max Throughput | term | 200.118 | ops/s |
| 50th percentile latency | term | 2.69169 | ms |
| 90th percentile latency | term | 15.5542 | ms |
| 99th percentile latency | term | 52.1687 | ms |
| 99.9th percentile latency | term | 62.2191 | ms |
| 100th percentile latency | term | 63.3586 | ms |
| Min Throughput | phrase | 196.082 | ops/s |
| Median Throughput | phrase | 200.032 | ops/s |
| Max Throughput | phrase | 200.049 | ops/s |
| 50th percentile latency | phrase | 4.70513 | ms |
| 90th percentile latency | phrase | 41.5631 | ms |
| 99th percentile latency | phrase | 61.2904 | ms |
| 99.9th percentile latency | phrase | 64.1431 | ms |
| 100th percentile latency | phrase | 64.8171 | ms |
| Min Throughput | country\_agg\_uncached | 2.53125 | ops/s |
| Median Throughput | country\_agg\_uncached | 2.55542 | ops/s |
| Max Throughput | country\_agg\_uncached | 2.56809 | ops/s |
| 50th percentile latency | country\_agg\_uncached | 191703 | ms |
| 90th percentile latency | country\_agg\_uncached | 265937 | ms |
| 99th percentile latency | country\_agg\_uncached | 282614 | ms |
| 99.9th percentile latency | country\_agg\_uncached | 284102 | ms |
| 100th percentile latency | country\_agg\_uncached | 284297 | ms |
| Min Throughput | country\_agg\_cached | 100.046 | ops/s |
| Median Throughput | country\_agg\_cached | 100.072 | ops/s |
| Max Throughput | country\_agg\_cached | 100.134 | ops/s |
| 50th percentile latency | country\_agg\_cached | 3.24472 | ms |
| 90th percentile latency | country\_agg\_cached | 4.16849 | ms |
| 99th percentile latency | country\_agg\_cached | 25.1214 | ms |
| 99.9th percentile latency | country\_agg\_cached | 43.7322 | ms |
| 100th percentile latency | country\_agg\_cached | 50.3143 | ms |
| Min Throughput | scroll | 31.3553 | ops/s |
| Median Throughput | scroll | 31.6427 | ops/s |
| Max Throughput | scroll | 31.7946 | ops/s |
| 50th percentile latency | scroll | 337930 | ms |
| 90th percentile latency | scroll | 485487 | ms |
| 99th percentile latency | scroll | 518748 | ms |
| 100th percentile latency | scroll | 522454 | ms |
| Min Throughput | expression | 1.09803 | ops/s |
| Median Throughput | expression | 1.11245 | ops/s |
| Max Throughput | expression | 1.11853 | ops/s |
| 50th percentile latency | expression | 120302 | ms |
| 90th percentile latency | expression | 150630 | ms |
| 99th percentile latency | expression | 157380 | ms |
| 100th percentile latency | expression | 158111 | ms |
4核8G 3个节点
| Metric | Operation | Value | Unit |
|---|---|---|---|
| Indexing time | 30.2766 | min | |
| Merge time | 11.1005 | min | |
| Refresh time | 3.1837 | min | |
| Flush time | 0.0554 | min | |
| Merge throttle time | 1.49132 | min | |
| Total Young Gen GC | 87.16 | s | |
| Total Old Gen GC | 2.738 | s | |
| Heap used for segments | 17.9447 | MB | |
| Heap used for doc values | 0.0973434 | MB | |
| Heap used for terms | 16.7564 | MB | |
| Heap used for norms | 0.0637817 | MB | |
| Heap used for points | 0.220229 | MB | |
| Heap used for stored fields | 0.806961 | MB | |
| Segment count | 84 | ||
| Min Throughput | index-stats | 99.9043 | ops/s |
| Median Throughput | index-stats | 100.055 | ops/s |
| Max Throughput | index-stats | 100.111 | ops/s |
| 50th percentile latency | index-stats | 4.31123 | ms |
| 90th percentile latency | index-stats | 5.01966 | ms |
| 99th percentile latency | index-stats | 6.73182 | ms |
| 99.9th percentile latency | index-stats | 16.3152 | ms |
| 100th percentile latency | index-stats | 16.7211 | ms |
| Min Throughput | node-stats | 99.9997 | ops/s |
| Median Throughput | node-stats | 100.068 | ops/s |
| Max Throughput | node-stats | 100.441 | ops/s |
| 50th percentile latency | node-stats | 5.41895 | ms |
| 90th percentile latency | node-stats | 6.62956 | ms |
| 99th percentile latency | node-stats | 10.4876 | ms |
| 99.9th percentile latency | node-stats | 16.8256 | ms |
| 100th percentile latency | node-stats | 22.3502 | ms |
| Min Throughput | default | 49.9808 | ops/s |
| Median Throughput | default | 50.016 | ops/s |
| Max Throughput | default | 50.0348 | ops/s |
| 50th percentile latency | default | 14.0526 | ms |
| 90th percentile latency | default | 16.2503 | ms |
| 99th percentile latency | default | 21.8674 | ms |
| 99.9th percentile latency | default | 29.5538 | ms |
| 100th percentile latency | default | 31.5155 | ms |
| Min Throughput | term | 199.745 | ops/s |
| Median Throughput | term | 200.06 | ops/s |
| Max Throughput | term | 200.087 | ops/s |
| 50th percentile latency | term | 3.06953 | ms |
| 90th percentile latency | term | 4.04719 | ms |
| 99th percentile latency | term | 24.0726 | ms |
| 99.9th percentile latency | term | 37.8865 | ms |
| 100th percentile latency | term | 38.5456 | ms |
| Min Throughput | phrase | 199.35 | ops/s |
| Median Throughput | phrase | 199.992 | ops/s |
| Max Throughput | phrase | 200.071 | ops/s |
| 50th percentile latency | phrase | 4.59871 | ms |
| 90th percentile latency | phrase | 22.3203 | ms |
| 99th percentile latency | phrase | 48.3212 | ms |
| 99.9th percentile latency | phrase | 52.8152 | ms |
| 100th percentile latency | phrase | 52.8472 | ms |
| Min Throughput | country\_agg\_uncached | 4.49216 | ops/s |
| Median Throughput | country\_agg\_uncached | 4.67822 | ops/s |
| Max Throughput | country\_agg\_uncached | 4.7315 | ops/s |
| 50th percentile latency | country\_agg\_uncached | 14575.8 | ms |
| 90th percentile latency | country\_agg\_uncached | 17213.5 | ms |
| 99th percentile latency | country\_agg\_uncached | 18765.9 | ms |
| 99.9th percentile latency | country\_agg\_uncached | 18810.1 | ms |
| 100th percentile latency | country\_agg\_uncached | 18813.6 | ms |
| Min Throughput | country\_agg\_cached | 100.046 | ops/s |
| Median Throughput | country\_agg\_cached | 100.06 | ops/s |
| Max Throughput | country\_agg\_cached | 100.129 | ops/s |
| 50th percentile latency | country\_agg\_cached | 3.49425 | ms |
| 90th percentile latency | country\_agg\_cached | 4.68459 | ms |
| 99th percentile latency | country\_agg\_cached | 6.65144 | ms |
| 99.9th percentile latency | country\_agg\_cached | 17.7776 | ms |
| 100th percentile latency | country\_agg\_cached | 24.6469 | ms |
| Min Throughput | scroll | 32.6045 | ops/s |
| Median Throughput | scroll | 32.725 | ops/s |
| Max Throughput | scroll | 32.7822 | ops/s |
| 50th percentile latency | scroll | 326129 | ms |
| 90th percentile latency | scroll | 470066 | ms |
| 99th percentile latency | scroll | 502268 | ms |
| 100th percentile latency | scroll | 505901 | ms |
| Min Throughput | expression | 1.89188 | ops/s |
| Median Throughput | expression | 1.90472 | ops/s |
| Max Throughput | expression | 1.94701 | ops/s |
| 50th percentile latency | expression | 7336.16 | ms |
| 90th percentile latency | expression | 8155.22 | ms |
| 99th percentile latency | expression | 8272.59 | ms |
| 100th percentile latency | expression | 8322.61 | ms |