1:查看MongoDB当前正在做哪些操作?
db.currentOp()
等同于:
db.$cmd.sys.inprog.findOne()
2:查看当前有多少个连接?
db.serverStatus().connections
3:详解currentOp()
gechongrepl:PRIMARY> db.currentOp()
{
"inprog" : [
{
"opid" : 6222,
"active" : true,
"secs_running" : 3,
"microsecs_running" : NumberLong(3662328),
"op" : "getmore",
"ns" : "local.oplog.rs",
"query" : {
},
"client" : "192.168.91.132:45745",
"desc" : "conn5",
"threadId" : "0x7f1370cb4700",
"connectionId" : 5,
"waitingForLock" : false,
"numYields" : 0,
"lockStats" : {
"timeLockedMicros" : {
"r" : NumberLong(141),
"w" : NumberLong(0)
},
"timeAcquiringMicros" : {
"r" : NumberLong(16),
"w" : NumberLong(0)
}
}
}
]
}
"opid" : 6222,#进程号 "active" : true,#是否活动状态 "secs_running" : 3,#操作运行了多少秒 "microsecs_running" : NumberLong(3662328), "op" : "getmore",#操作类型,包括(insert/query/update/remove/getmore/command) "ns" : "local.oplog.rs",#命名空间 "query" : {},#如果op是查询操作,这里将显示查询内容;也有说这里显示具体的操作语句的
"client" : "192.168.91.132:45745",#连接的客户端信息 "desc" : "conn5",#数据库的连接信息 "threadId" : "0x7f1370cb4700",#线程ID "connectionId" : 5,#数据库的连接ID "waitingForLock" : false,#是否等待获取锁 "numYields" : 0, "lockStats" : { "timeLockedMicros" : {#持有的锁时间微秒 "r" : NumberLong(141),#整个MongoDB实例的全局读锁 "w" : NumberLong(0)},#整个MongoDB实例的全局写锁 "timeAcquiringMicros" : {#为了获得锁,等待的微秒时间 "r" : NumberLong(16),#整个MongoDB实例的全局读锁 "w" : NumberLong(0)}#整个MongoDB实例的全局写锁
求知若渴, 虛心若愚……
标签: MongoDB