标签：rest Plan bsp conf execution ima 记录 exe oda
mongodb可以通过profile来监控数据，进行优化。
查看当前是否开启profile功能
用命令db.getProfilingLevel() 返回level等级，值为0|1|2，分别代表意思：0代表关闭，1代表记录慢命令，2代表全部
开启profile功能命令为
db.setProfilingLevel(level); #level等级，值同上
level为1的时候，慢命令默认值为100ms，
更改为db.setProfilingLevel(level,slowms)如db.setProfilingLevel(1,50)这样就更改为50毫秒
通过db.system.profile.find() 查看当前的监控日志.
/* 1 */ { "op" : "query", "ns" : "config.system.profile", "command" : { "find" : "system.profile", "filter" : {}, "$readPreference" : { "mode" : "secondaryPreferred" }, "$db" : "config" }, "keysExamined" : 0, "docsExamined" : 0, "cursorExhausted" : true, "numYield" : 0, "locks" : { "Global" : { "acquireCount" : { "r" : NumberLong(2) } }, "Database" : { "acquireCount" : { "r" : NumberLong(1) } }, "Collection" : { "acquireCount" : { "r" : NumberLong(1) } } }, "nreturned" : 0, "responseLength" : 94, "protocol" : "op_command", "millis" : 32, "planSummary" : "COLLSCAN", "execStats" : { "stage" : "COLLSCAN", "nReturned" : 0, "executionTimeMillisEstimate" : 0, "works" : 2, "advanced" : 0, "needTime" : 1, "needYield" : 0, "saveState" : 0, "restoreState" : 0, "isEOF" : 1, "invalidates" : 0, "direction" : "forward", "docsExamined" : 0 }, "ts" : ISODate("2019-01-18T03:10:06.731Z"), "client" : "192.168.0.72", "appName" : "MongoDB Shell", "allUsers" : [ { "user" : "root", "db" : "admin" } ], "user" : "root@admin" }
标签：rest Plan bsp conf execution ima 记录 exe oda
原文地址：https://www.cnblogs.com/visionsl/p/10286655.html
