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mongostat性能分析
2022-06-29 06:37:00 【7258281014】
一、mongostat性能分析
执行命令
./mongostat --host 127.0.0.1:27001

字段意思
| 字段 | 说明 |
|---|---|
| insert | 每秒插入数据库的对象数量 |
| query | 每秒查询操作的数量 |
| update | 每秒更新操作的数量 |
| delete | 每秒删除操作的数量 |
| getmore | 每秒get more操作的数量(例如游标操作) |
| command | 每秒执行命令的数量 |
| dirty | WiredTiger缓存中脏数据的百分比,超过20%阻塞新请求 |
| used | 划分给mongodb使用的内存,已经占用了多少,超过80%开始lru原则清除缓存,超过95%阻塞新请求 |
| flushes | 指每个间隔WiredTiger引擎触发的checkpoints数 |
| vsize | 虚拟内存 |
| res | 真实内存 |
| qr | 等待从MongoDB实例读取数据的队列长度 |
| qw | 等待从MongoDB实例写入数据的队列长度 |
| ar | 执行读操作的活跃客户数量 |
| aw | 执行写操作的活跃客户端数量 |
| net_in | MongoDB实例接收的网络流量 |
| net_out | MongoDB实例发送的网络流量 |
| conn | 连接数 |
| set | 如果有设置的话,这里是复制集名称 |
| repl | 在复制集中的角色:PRI(primary)/SEC(secondary)/REC(recovering)/UNK(unknown)/RTR(mongos进程 router)/ARB(arbiter) |
| time | 时间 |
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