MongoDB Installation Configuration Practices

1. First download MongoDB installation package Http://www.mongodb.org/downloads My system is redhat5.8 all select the corresponding version package is OK now the latest version is 3.0.3

2. Decompression mongodb-linux-x86_64-rhel55-3.0.3.tgz

[[email protected] ~]# tar zxvf mongodb-linux-x86_64-rhel55-3.0.3.tgz -c / opt/mongodb-linux-x86_64-rhel55-3.0.3/readmemongodb-linux-x86_64-rhel55-3.0.3/ third-party-noticesmongodb-linux-x86_64-rhel55-3.0.3/gnu-agpl-3.0mongodb-linux-x86_64-rhel55-3.0.3/bin/ mongodumpmongodb-linux-x86_64-rhel55-3.0.3/bin/mongorestoremongodb-linux-x86_64-rhel55-3.0.3/bin/ mongoexportmongodb-linux-x86_64-rhel55-3.0.3/bin/mongoimportmongodb-linux-x86_64-rhel55-3.0.3/bin/ mongostatmongodb-linux-x86_64-rhel55-3.0.3/bin/mongotopmongodb-linux-x86_64-rhel55-3.0.3/bin/ bsondumpmongodb-linux-x86_64-rhel55-3.0.3/bin/mongofilesmongodb-linux-x86_64-rhel55-3.0.3/bin/ mongooplogmongodb-linux-x86_64-rhel55-3.0.3/bin/mongoperfmongodb-linux-x86_64-rhel55-3.0.3/bin/ mongodmongodb-linux-x86_64-rhel55-3.0.3/bin/mongosmongodb-linux-x86_64-rhel55-3.0.3/bin/mongo[[email  protected] opt]# ln -sv mongodb-linux-x86_64-rhel55-3.0.3/ mongodbcreate  symbolic link ' MongoDB '  to  ' mongodb-linux-x86_64-rhel55-3.0.3/' 

3. Create a MongoDB user

[Email protected]/]# Useradd MongoDB

4. Create the appropriate file directory and modify permissions

[[email protected]/]# mkdir/data/db-p[[email protected]/]# chown mongodb:mongodb/data/-r[[email protected] opt]# cho Wn-r mongodb:mongodb/opt/*

5. Add the PATH environment variable under shell Normal access to MongoDB's utility

[Email protected] bin]# vim/etc/profile.d/mongodb.shexport path= $PATH:/opt/mongodb/bin[[email protected] bin]# SOURC e/etc/profile.d/mongodb.sh [[email protected] bin]# echo $PATH/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin :/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/opt/mongodb/bin

6. Creating a PID storage directory for MongoDB

[Email protected] run]# mkdir/var/run/mongodb[[email protected] run]# chown mongodb:mongodb/var/run/mongodb/-r[[ Email protected] opt]# mongod--dbpath/data/db/--logpath/var/log/mongodb.log--logappend--port 27017--pidfilepath/va  R/run/mongodb/mongodb.pid--maxconns--rest--httpinterface--forkabout to fork child process, waiting until server is Ready for connections.forked Process:4060child process started successfully, parent Exiting--maxconns 250: Indicates that the maximum number of connections is 250- -rest--httpinterface:web Interface, specify this 28017 port to enable--fork: running in the background

7. Problems encountered during installation

After the connection is installed, the following warning appears.

(1). [[email protected] ~]# Mongomongodb shell version:3.0.3connecting To:testserver has startup Warnings:2015-06-15t20:27:4 9.892+0800 I CONTROL [initandlisten] * * Warning:you is running this process as the root user, which was not recommended. 2015-06-15t20:27:49.892+0800 I CONTROL [Initandlisten]

This problem occurs when viewing the file permissions on MongoDB, mainly/opt/data/db//var/run/mongodb//var/log/ The permissions of the Mongodb.log are run as root when the initialization is initiated, so the permissions under these directories may become root root

(2). [[email protected] db]$  mongod --dbpath /data/db/ --logpath /var/log/ mongodb.log --logappend --port 27017 --pidfilepath /var/run/mongodb/mongodb.pid  --maxconns 250 --rest --httpinterface --fork2015-06-15t17:41:25.721+0800 i  Control  [initandlisten] ** warning: /sys/kernel/mm/transparent_hugepage/enabled  is  ' always '. 2015-06-15t17:41:25.721+0800 i control  [initandlisten] **         We suggest setting it to  ' Never ' 2015-06-15t17:41:25.721+0800 i control  [initandlisten] 2015-06-15t17:41:25.721+0800  i control  [initandlisten] ** warning: /sys/kernel/mm/transparent_hugepage /defrag is  ' always '. 2015-06-15t17:41:25.721+0800 i control  [initandlisten]  **        we suggest setting it to  ' Never ' 

Two parameters can be modified

echo "Never" >/sys/kernel/mm/transparent_hugepage/enabled echo "Never" >/sys/kernel/mm/transparent_hugepage/ Defrag

8. Successful Installation and Login

 [[email protected] ~]# ss -tanlp | grep mongod0       0                               *:27017                           *:*       users: (("Mongod", 4095,6)) 0       0                               *:28017                           *:*       users: (("Mongod", 4095,8))  [[ email protected] ~]# mongomongodb shell version: 3.0.3connecting to: test> help     db.help ()                      help on db methods     Db.mycoll.help ()              help on  collection methods    sh.help ()                      sharding helpers     rs.help ()                      replica set helpers    help admin                     Administrative help    help connect                  connecting to a db help    help keys                      key shortcuts    help misc                     misc things to know     help mr                       mapreduce    show dbs                       show database names    show collections              show collections in current database    show  users                    show users in current database    show profile                  show  most recent system.profile entries with time >= 1ms     show logs                     show the accessible logger names     show log [name]               prints out the last segment of log in memory,  ' Global '  is default    use <db_name>                 set current database    db.foo.find ()                  list objects in  Collection foo    db.foo.find ( { a : 1 } )       list objects in foo where a == 1     it                            result of the last line  evaluated; use to further iterate    dbquery.shellbatchsize =  x   set default number of items to display on  Shell    exit                          quit the mongo shell

Log on to the Web interface 28017 port

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9. Shutting down the server

(1). [Email protected] ~]# Mongod--shutdown killing process with pid:3936 (2). [Email protected] ~]# Killall Mongod

10. Write a configuration file for MongoDB/etc/mongodb.conf

[Email protected] ~]# grep-v ^#/etc/mongodb.conf logpath=/var/log/mongodb.loglogappend=truefork = truedbpath=/data/ Dbpidfilepath =/var/run/mongodb/mongodb.pidrest = Truehttpinterface = True

start

[[email protected] ~]# mongod -f /etc/mongodb.conf about to fork  Child process, waiting until server is ready for connections.forked  process: 4169child process started successfully, parent exiting[[email  protected] ~]# ss -tanlp | grep mongod0       0                               *:27017                           *:*       users: (("Mongod", 4169,6)) 0       0                               *:28017                          *:*       users: (("Mongod", 4169,8))

11. Start MongoDB
Startup script with service MongoDB *:/etc/rc.d/init.d/mongod

#!/bin/bash# mongod - startup script for mongod# chkconfig: 35 85  15# description: mongo is a scalable, document-oriented database.#  processname: mongod# config: /etc/mongod.conf# pidfile: /var/run/mongo/ mongod.pid. /etc/rc.d/init.d/functions# things from mongod.conf get there  By mongod reading itconfigfile= "/etc/mongodb.conf" options= " -f  $CONFIGFILE" sysconfig= "/etc/sysconfig/mongod" dbpath= ' awk -f=  '/^dbpath=/{print $2} '   "$CONFIGFILE" ' pidfile= ' awk  -F=  '/^dbpath\s=\s/{print $2} '   "$CONFIGFILE" ' Mongod=${mongod-/opt/mongodb/bin/mongod} mongo_user=mongodbmongo_group=mongodbif [ -f  "$SYSCONFIG"  ]; then     .  "$SYSCONFIG" fi# handle numa access to cpus  (SERVER-3574) # this  verifies the existence of numactl as well as testing that the command  worksnumactl_args= "--interleave=all" if which numactl >/dev/null 2>/dev/null  && numactl  $NUMACTL _args ls / >/dev/null 2>/dev/nullthen     numactl= "numactl  $NUMACTL _args" else    numactl= "" Fistart () {   echo -n $ "starting mongod: "   daemon --user  "$MONGO _user"  $ numactl  $mongod   $OPTIONS   RETVAL=$?  echo  [  $RETVAL  -eq  0 ] && touch /var/lock/subsys/mongod}stop () {  echo -n $ " stopping mongod:  "  killproc -p " $PIDFILE " -d 300 /opt/mongodb/ bin/mongod  retval=$?  echo  [  $RETVAL  -eq 0 ] & & rm -f /var/lock/subsys/mongod}restart  ()  {    stop    start}ulimit  -n 12000RETVAL=0case  "$"  in  start)     start     ;;   stop)     stop    ;;   restart|reload|force-reload)     restart    ;;   condrestart)     [ -f /var/lock/subsys/mongod ] &&  restart | |  :    ;;   status)     status  $mongod     RETVAL=$?     ;;   *)     echo  "usage: $0 {start|stop|status|restart|reload| Force-reload|condrestart} "    RETVAL=1esacexit  $RETVAL

test start

[[Email protected] ~]# service mongod startstarting mongod: about to  fork child process, waiting until server is ready for  connections.forked process: 4426child process started successfully, parent  exiting                                                              [  ok  ][[email protected] init.d]# ss  -tanlp | grep mongod0      0                                *:27017                          *:*       users :(("Mongod", 4426,6)) 0      0                                *:28017                          *:*        users: (("Mongod", 4426,8))                                                        [[email p rotected] ~]# mongomongodb shell version: 3.0.3connecting to: test>  [[email protected] ~]# service mongod startstarting mongod: about  to fork child process, waiting until server is ready for  connections.forked process: 4426child process started successfully, parent  exiting                                                              [  OK  ][[email protected] ~]#  service mongod stopstopping mongod:                                             [  OK  ]

This article is from the "lovefish" blog, make sure to keep this source http://mictiger.blog.51cto.com/4854014/1661997

MongoDB Installation Configuration Practices