MongoDB Db.serverstatus () detailed explanation

Click (here) to collapse or Open > Db.serverstatus () {"Host": "core_appdb_2:10001", #主机名和mongo端口 "version": "2.2.4", #mongo版本 "process" : "Mongod", #进程名称 "pid": 30011, #进程id "uptime": 15054670, #mongo启动时间单位秒 "Uptimemillis": Numberlong ("15054669872"), #mong o Start time unit millisecond "uptimeestimate": 14884601, #基于MongoDB内部粗粒度定时器的运行时间 "localtime": Isodate ("2014-03-19t06:51:48.303z"), # Current UTC Time "locks": {".": {"Timelockedmicros": {#所用库的锁时间单位微秒 "R": Numberlong (604780392), #所用库的读锁时间单位微秒 "W": Numberlon G ("13531173187") #所用库的写锁时间单位微秒}, "Timeacquiringmicros": {"R": Numberlong (635619713), #所用库的等待读锁时间单位微秒 "W": Numberlong ( 114062002) #所用库的等待读锁时间单位微秒}}, "admin": {"Timelockedmicros": {"R": Numberlong (46802786), "W": Numberlong (0)}, "Time Acquiringmicros ": {" R ": Numberlong (3942271)," W ": Numberlong (0)}}," local ": {" Timelockedmicros ": {" R ": Numberlo Ng ("6484531006"), "W": Numberlong ("7723991598")}, "Timeacquiringmicros": {"R": Numberlong (605019419), "W": Numberlon g (1003472196)}}, "config": {"Timelockedmicros ": {" R ": Numberlong (4723313)," W ": Numberlong (0)}," Timeacquiringmicros ": {" R ": Numberlong (1517553 , "W": Numberlong (0)}}, "task": {"Timelockedmicros": {"R": Numberlong ("51722457503"), "W": Numberlong ("309963048 ")}," Timeacquiringmicros ": {" R ": Numberlong (" 24704782100 ")," W ": Numberlong (" 10218470097 ")}}," Test ": {" Timelo Ckedmicros ": {" R ": Numberlong (4502479)," W ": Numberlong ()}," Timeacquiringmicros ": {" R ": Numberlong (1014481)," W ": Numberlong (3)}}}," GlobalLock ": {" TotalTime ": Numberlong (" 15054669872000 "), #自数据库启动并且创建全局锁的时间, unit subtle, and database startup time Close" L Ocktime ": Numberlong (" 13531173187 "), # #自数据库启动并且获得全局锁的时间, Unit subtle" Currentqueue ": {" Total ": 0, #当前等待获取锁的队列" readers ": 0, #当 Queue "Writers": 0 #当前等待获取写锁的队列}, "Activeclients": {"Total": 0, #当前活动的连接数 "readers": 0, #当前活动的读连接数 "writers": 0 #当前活动的写连接数}, "mem": {"bits": 64, # 64-bit MONGO "resident": 20729, #常驻内存单位M "virtual": 93204, #虚拟内存单位M, if journaling open Kai, about twice times the mapped memory, if the memory is MApped memory three times times or more may be memory leak "supported": TRUE, #是否支持扩展内存 "mapped": 45195, #数据映射到内存的大小单位M, and the total size of the data is similar. "Mappedwithjournal": 90390# data files and journaling files mapped to the size in memory, Unit m, which has been twice times the value of mapped. }, ' connections ': {' current ': 2050, #当前的连接数 ' available ': 14350 #还可以用的连接数}, ' Extra_info ': {' note ': ' Fields vary by Platform "," heap_usage_bytes ": 91177440, #数据库用的heap内存大小单位bytes" page_faults ": 57650 #访问swap分区中的数据大小, Unit page}," Indexcounters ': {"btree": {"accesses": 692698855, #访问索引的次数 "hits": 692704555, #访问内存中索引的次数 "misses": 0, #访问磁盘中索引的次数 " Resets ": 0, #自启动数据库以后, number of times the index count was reset" Missratio ": 0 #}}," Backgroundflushing ": {" Flushes ": 250852, #数据库刷新数据到磁盘的次数" Tota L_ms ": 52897489, #数据库刷新数据到磁盘花费的时间, unit millisecond" Average_ms ": 210.871306587151, #平均每次刷新磁盘花费的时间, per millisecond. "Last_ms": 797, #最后一次刷新磁盘花费的时间, per millisecond. "Last_finished": Isodate ("2014-03-19t06:51:03.102z") #最后一次完成刷新磁盘后的utc时间点. }, "Cursors": {"Totalopen": 2, #当前打开cursor的数量 "Clientcursors_size": 2, #从1. x version has removed "timedout": 1444 #curser超时次数}, "n Etwork ": {" Bytesin": 31179599101, #发送到数据库的数据总量 (bytes)" Bytesout ": 567176581019, #数据库发出的数据总量 (bytes)" numrequests ": 192840604 #发送到数据库的请求量} , "Repl": {"SetName": "Shard1", #主从复制的名字 "IsMaster": True, #是不是主从复制的主服务器 "secondary": false, #是不是主从复制的从服务器 "hosts": [ #主从复制包括的机器 "10.0.3.56:10001", "10.0.3.56:10002"], "arbiters": [#仲裁机器 "10.0.3.56:10003"], "PRIMARY": "10.0.3.56:10001 ", #主服务器地址" Me ":" 10.0.3.56:10001 "#当前服务器地址}," Replnetworkqueue ": {" Waittimems ": 0," Numelems ": 0," numbytes ": 0}, "Opcounters": {"Insert": 8179832, #自实例启动以来总的insert次数 "query": 76509861, #自实例启动以来总的query次数 "Update": 15971292, #自实例启动以 The total number of update "delete": 254882, #自实例启动以来总的delete次数 "Getmore": 34581601, #自实例启动以来总的getmore次数 "command": 62259857 #自实例启动以来总 Number of commands}, "asserts": {"regular": 0, #自实例启动以来抛出正规断言次数 "warning": 0, #自实例启动以来抛出的告警总次数 "msg": 0, #自实例启动以来总服务器内部定义的好的断言次数 "u Ser ": 5756, #自实例启动以来总的用户断言次数" rollovers ": 0# the number of total assert counters have over times since instance startup}," rolled ": false," D ur ": {#每3秒统计一次, statistics 3-6 seconds between theData "commits": #上一间隔journal日志发生commit的次数 "JOURNALEDMB": 0.114688, #上一间隔journal日志产生的数据量 "WRITETODATAFILESMB": 0.1370 8, #上一间隔journal日志写到磁盘上的数据量 "compression": 0.8158085672418944, #journal日志压缩比, (journaled_size_of_data/uncompressed_ Size_of_data) "Commitsinwritelock": 0, #多少次在journal日志提交时有写锁. "Earlycommits": 0, #在自动commit前, how many times are required to commit "Timems": {"dt": 3087, #统计timeMs数据花费的时间, unit milliseconds "Preplogbuffer": 0, #准备写journ The Al log takes the time, in milliseconds, the less performance the better "writetojournal": 246, #写journal日志花费的时间, unit millisecond "writetodatafiles": 5, #在写journal日志后, The time spent writing data to a data file "Remapprivateview": The time it takes to remap data, the shorter the time, the better the performance. }, "Recordstats": {"accessesnotinmemory": 1224, #多少次访问数据没在内存中 "Pagefaultexceptionsthrown": 197, #多少次访问数据 throw page Fault Exceptions. "Admin": {"accessesnotinmemory": 0, "Pagefaultexceptionsthrown": 0}, "config": {"accessesnotinmemory": 0, "Pagefau Ltexceptionsthrown ": 0}," local ": {" accessesnotinmemory ":", "Pagefaultexceptionsthrown": 0}, "task": {"accesses Notinmemory ": 1197," PagefaultexcEptionsthrown ": 197}," test ": {" accessesnotinmemory ": 0," Pagefaultexceptionsthrown ": 0}}," OK ": 1}