RedHat7搭建MongoDB

yum安装MongoDB

1. 添加MongoDB源
   # vi /etc/yum.repos.d/mongodb-org-3.0.repo

   [mongodb-org-3.0]
   name=MongoDB Repository
   baseurl=https://repo.mongodb.org/yum/redhat/7/mongodb-org/3.0/x86_64/
   gpgcheck=
   enabled=

2. MongoDB包

   mongodb-org
   This package is a metapackage that will automatically install the four component packages listed below.
   
   mongodb-org-server
   This package contains the mongod daemon and associated configuration and init scripts.
   
   mongodb-org-mongos
   This package contains the mongos daemon.
   
   mongodb-org-shell
   This package contains the mongo shell.
   
   mongodb-org-tools
   This package contains the following MongoDB tools: mongoimport bsondump, mongodump, mongoexport, mongofiles, mongooplog, mongoperf, mongorestore, mongostat, and mongotop.

3. 安装MongoDB
   # yum install -y mongodb-org
4. 设置MongoDB服务开机自启动
   # chkconfig mongod on
5. 启动MongoDB服务
   # service mongod start

备注：卸载MongoDB

1. 停止MongoDB服务
   # service mongod stop
2. 卸载MongoDB安装包
   # yum erase $(rpm -qa | grep mongodb-org)
3. 删除数据库和日志目录
   # rm -r /var/lib/mongo
   # rm -r /var/log/mongodb

手动安装MongoDB

1. 下载MongoDB安装包
   # curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.0.7.tgz
2. 解压缩MongoDB
   # tar -zxvf mongodb-linux-x86_64-3.0.7.tgz
3. 移动到安装目录
   # mv mongodb-linux-x86_64-3.0.7 /usr/local/mongodb
4. 设置环境变量
   # echo "export PATH=\$PATH:/usr/local/mongodb/bin" > /etc/profile.d/mongodb.sh
   # source /etc/profile.d/mongodb.sh
5. 创建mongod用户和用户组
   # useradd -r -M -s /sbin/nologin mongod
6. 创建数据库和日志目录并修改属组
   # mkdir -p /data/mongodb/{db,log}/
   # chown -R mongod:mongod /data/mongodb/
7. 创建MongoDB配置文件
   # vi /etc/mongod.conf

   # mongod.conf
   
   # for documentation of all options, see:
   #   http://docs.mongodb.org/manual/reference/configuration-options/
   
   # where to write logging data.
   systemLog:
     destination: file
     logAppend: true
     path: /data/mongodb/log/mongod.log
   
   # Where and how to store data.
   storage:
     dbPath: /data/mongodb/db
     journal:
       enabled: true
   #  engine:
   #  mmapv1:
   #  wiredTiger:
   
   # how the process runs
   processManagement:
     fork: true  # fork and run in background
     pidFilePath: /var/run/mongodb/mongod.pid  # location of pidfile
   
   # network interfaces
   net:
     port: 27017
     bindIp: 127.0.0.1  # Listen to local interface only, comment to listen on all interfaces.
   
   #security:
   
   #operationProfiling:
   
   #replication:
   
   #sharding:
   
   ## Enterprise-Only Options
   
   #auditLog:
   
   #snmp:

备注：

如果MongoDB端口不在27017-27019, 28017-28019之间，需要执行以下步骤：

# yum -y install policycoreutils-python

# semanage port -a -t mongod_port_t -p tcp <port_number>

1. 创建MongoDB自启动脚本
   # vi /etc/init.d/mongod

   #!/bin/bash
   
   # mongod - Startup script for mongod
   
   # chkconfig:
   # description: Mongo is a scalable, document-oriented database.
   # processname: mongod
   # config: /etc/mongod.conf
   # pidfile: /var/run/mongodb/mongod.pid
   
   . /etc/rc.d/init.d/functions
   
   # things from mongod.conf get there by mongod reading it
   
   # NOTE: if you change any OPTIONS here, you get what you pay for:
   # this script assumes all options are in the config file.
   CONFIGFILE="/etc/mongod.conf"
   OPTIONS=" -f $CONFIGFILE"
   SYSCONFIG="/etc/sysconfig/mongod"
   
   PIDFILEPATH=`awk -F'[:=]' -v IGNORECASE= '/^[[:blank:]]*(processManagement\.)?pidfilepath[[:blank:]]*[:=][[:blank:]]*/{print $2}' "$CONFIGFILE" | tr -d "[:blank:]\"'" | cut -d "#" -f 1`
   
   mongod=${MONGOD-/usr/local/mongodb/bin/mongod}
   
   MONGO_USER=mongod
   MONGO_GROUP=mongod
   
   if [ -f "$SYSCONFIG" ]; then
       . "$SYSCONFIG"
   fi
   
   PIDDIR=`dirname $PIDFILEPATH`
   
   # Handle NUMA access to CPUs (SERVER-)
   # This verifies the existence of numactl as well as testing that the command works
   NUMACTL_ARGS="--interleave=all"
   if which numactl >/dev/null >/dev/null && numactl $NUMACTL_ARGS ls / >/dev/null >/dev/null
   then
       NUMACTL="numactl $NUMACTL_ARGS"
   else
       NUMACTL=""
   fi
   
   start()
   {
     # Make sure the default pidfile directory exists
     if [ ! -d $PIDDIR ]; then
       install -d -m  -o $MONGO_USER -g $MONGO_GROUP $PIDDIR
     fi
   
     # Recommended ulimit values for mongod or mongos
     # See http://docs.mongodb.org/manual/reference/ulimit/#recommended-settings
     #
     ulimit -f unlimited
     ulimit -t unlimited
     ulimit -v unlimited
     ulimit -n
     ulimit -m unlimited
     ulimit -u 
   
     echo -n $"Starting mongod: "
     daemon --user "$MONGO_USER" --check $mongod "$NUMACTL $mongod $OPTIONS >/dev/null 2>&1"
     RETVAL=$?
     echo
     [ $RETVAL -eq  ] && touch /var/lock/subsys/mongod
   }
   
   stop()
   {
     echo -n $"Stopping mongod: "
     mongo_killproc "$PIDFILEPATH" $mongod
     RETVAL=$?
     echo
     [ $RETVAL -eq  ] && rm -f /var/lock/subsys/mongod
   }
   
   restart () {
           stop
           start
   }
   
   # Send TERM signal to process and wait up to  seconds for process to go away.
   # If process is still alive after  seconds, send KILL signal.
   # Built-in killproc() (found in /etc/init.d/functions) is on certain versions of Linux
   # where it sleeps for the full $delay seconds if process does not respond fast enough to
   # the initial TERM signal.
   mongo_killproc()
   {
     local pid_file=$
     local procname=$
     local -i delay=
     local -i duration=
     local pid=`pidofproc -p "${pid_file}" ${procname}`
   
     kill -TERM $pid >/dev/null >&
     usleep
     local -i x=
     while [ $x -le $delay ] && checkpid $pid; do
       sleep $duration
       x=$(( $x + $duration))
     done
   
     kill -KILL $pid >/dev/null >&
     usleep 
   
     checkpid $pid # returns  only if the process exists
     local RC=$?
     [ "$RC" -eq  ] && failure "${procname} shutdown" || rm -f "${pid_file}"; success "${procname} shutdown"
     RC=$((! $RC)) # invert return code so we return  when process is dead.
     return $RC
   }
   
   RETVAL=
   
   case "$1" 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=
   esac
   
   exit $RETVAL

2. 设置MongoDB服务开机自启动
   # chmod +x /etc/init.d/mongod
   # chkconfig mongod on
3. 启动MongoDB服务
   # service mongod start

备注：

如果启动发生错误，请检查数据库和日志目录及里面文件的权限是否设置正确，再次运行前须删除数据库目录下的mongod.lock文件。