Mongodb_ Performance Monitoring

first, the use of Mongostat.exeCDC:\Program files\mongodb\server\3.0\bin\ -Mongostat.exe-->mongostat-n > C:\test.txt Print 10 lines to a text file for easy viewing -mongo.exe Execute MongoDB command
Http://www.cnblogs.com/renyb/archive/2013/01/18/2866632.html
second, the server running state:db.serverstatus ()

http://lavafree.iteye.com/blog/1131312

{"Host": "Baobao-laptop", #主机名 "version": "1.8.2", #版本号 "process": "Mongod", #进程名 "uptime": 15549, #运行时间 "uptimeestimate": 15351, "localtime": Isodate ("2011-07-23t06:07:31.220z"), Current Time "GlobalLock": {"TotalTime": 15548525410, #总运行时间 (NS) " LockTime ": 89206633, #总的锁时间 (ns)" ratio ": 0.005737305027178137, #锁比值" Currentqueue ": {" Total ": 0, #当前需要执行的队列" readers ": 0, #读队列 "Writers": 0# Write Queue}, "Activeclients": {"Total": 0, #当前客户端执行的链接数 "readers": 0, #读链接数 "writers": 0# Write Links}}, "Mem": {#内存情况 "b Its ": +, #32位系统" resident ": 337, #占有物理内存数" virtual ": 599, #占有虚拟内存" supported ": TRUE, #是否支持扩展内存" mapped ":", "connections ": {" Current ": 2, #当前链接数" available ": 817# number of available links}," Extra_info ": {" note ":" Fields vary by platform "," heap_usage_bytes ": 159008, #堆使用情况字节 "page_faults": 907 #页面故作}, "Indexcounters": {"Btree": {"accesses": 59963, #索引被访问数 "hits": 59963, #所以命中数 " Misses ": 0, #索引偏差数" resets ": 0, #复位数" missratio ": 0# not hit rate}," backgroundflushing ": {" Flushes ": 259, #刷新次数" Total_ms ": 3395 , #刷新总花费时长 "Average_ms": 13.108108108108109, #平均时长 "Last_ms": 1, #最后一次时长 "last_finished": Isodate ("2011-07-23t06:07:22.725z") #最后刷新时间}, "Cursors": {"Totalopen ": 0, #打开游标数" clientcursors_size ": 0, #客户端游标大小" timedout ": 16# Time-out}," network ": {" Bytesin ": 285676177, #输入数据 (Byte)" Bytesout ": 286564, #输出数据 (byte)" numrequests ": 2012348# number of requests}," Opcounters ": {" Insert ": 2010000, #插入操作数" query ": Wuyi, #查询操作数" Update ": 5, #更新操作数" delete ": 0, #删除操作数" Getmore ": 0, #获取更多的操作数" command ": 148# other Order operand}," asserts ": {#各个断言的数量" regular ": 0," W Arning ": 0," MSG ": 0," user ": 2131," rollovers ": 0}," writebacksqueued ": false," OK ": 1}

 Third, database operation status:      Db.stats ()       
  

1. Switch database: Use database name

2. Current database: DB

{"DB": "Order", #库名 "Collections": 4, #集合数 "Objects": 2011622, #记录数 "avgobjsize": 111.92214441878245, #每条记录的平均值 "DataSize" : 225145048, #记录的总大小 "storagesize": 307323392, #预分配的存储空间 "numextents": +, #事件数 "Indexes": 1, #索引数 "indexsize": 74187744,# So size   1024=1kb "fileSize": 1056702464, #文件大小 "OK": 1}

Iv. set running state: DB. Collection name. Stats ()

{"ns": "Order.order", #命名空间 "Count": 2010000, #记录数 "size": 225039600, #大小 "avgobjsize": 111.96, "storagesize": 307186944, " Numextents ": nindexes": 1, "lastextentsize": 56089856, "Paddingfactor": 1, "Flags": 1, "totalindexsize": 74187744, "I Ndexsizes ": {" _id_ ": 74187744# index size for _id_}," OK ": 1}

v. Query State of statements     

1. Command line

Db.order.find ({"Status": 1.0, "User.uid": {$gt:2663199.0}}). Explain ()

{
"Cursor": "Basiccursor", #游标类型
"nscanned": 2010000, #扫描数量
"Nscannedobjects": 2010000, #扫描对象
"N": 337800, #返回数据
"Millis": 2838, #耗时
"Nyields": 0,
"Nchunkskips": 0,
"Ismultikey": false,
"IndexOnly": false,
"Indexbounds": {#使用索引 (not here)
}

2, Mongovue

N: Number of records returned nscannedobjects: Number of documents scanned nscanned: Number of indexes scanned Millis: Elapsed time (in milliseconds)

Mongodb_ Performance Monitoring