虚拟机Linux安装MongoDB
步骤：
1.安装MongoDB
mongoDB的tar包下载地址：https://www.mongodb.com/download-center#atlas
解压安装包 tar -zxvf xxxxxxxxxx.tar
移动到安装目录 mv mongodb-linux-x86_64-xxx /usr/local/mongodb
添加环境变量 echo "export PATH=\$PATH:/usr/local/mongodb/bin【解压后移动过去会存在一个目录，所以需要配置】" > /etc/profile.d/mongodb.sh （这个里面要小心了！）
使环境变量生效 source /etc/profile.d/mongodb.sh
创建Mongodb用户和组 useradd -r -M -s /sbin/nologin mongod
***创建启动数据库和启动日志 mkdir -p /data/mongodb/{db,log}/
修改权限 chown -R mongod:mongod/data/mongodb/
配置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 inbackground
pidFilePath: /var/run/mongodb/mongod.pid # location of pidfile
#network interfaces
net:
port: 27017
bindIp: 127.0.0.1 # Listen tolocal 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> 27017
创建MongoDB自启动脚本 vi /etc/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/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=1'/^[[: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 $PIDFILEPATH`
#Handle NUMA access to CPUs (SERVER-3574)
#This verifies the existence of numactl as well as testing that the commandworks
NUMACTL_ARGS="--interleave=all"
if which numactl >/dev/null 2>/dev/null && numactl$NUMACTL_ARGS ls / >/dev/null 2>/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 0755 -o $MONGO_USER -g $MONGO_GROUP $PIDDIR
fi
# Recommended ulimit values for mongod or mongos
# Seehttp://docs.mongodb.org/manual/reference/ulimit/#recommended-settings
#
ulimit -f unlimited
ulimit -t unlimited
ulimit -v unlimited
ulimit -n 64000
ulimit -m unlimited
ulimit -u 64000
echo -n $"Starting mongod: "
daemon --user "$MONGO_USER" --check $mongod "$NUMACTL$mongod $OPTIONS >/dev/null 2>&1"
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && touch /var/lock/subsys/mongod
}
stop()
{
echo -n $"Stopping mongod: "
mongo_killproc "$PIDFILEPATH" $mongod
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/mongod
}
restart () {
stop
start
}
#Send TERM signal to process and wait up to 300 seconds for process to go away.
#If process is still alive after 300 seconds, send KILL signal.
#Built-in killproc() (found in /etc/init.d/functions) is on certain versions ofLinux
#where it sleeps for the full $delay seconds if process does not respond fastenough to
#the initial TERM signal.
mongo_killproc()
{
local pid_file=$1
local procname=$2
local -i delay=300
local -i duration=10
local pid=`pidofproc -p "${pid_file}" ${procname}`
kill -TERM $pid >/dev/null 2>&1
usleep 100000
local -i x=0
while [ $x -le $delay ] && checkpid $pid; do
sleep $duration
x=$(( $x + $duration))
done
kill -KILL $pid >/dev/null 2>&1
usleep 100000
checkpid $pid # returns 0 only if the process exists
local RC=$?
[ "$RC" -eq 0 ] && failure "${procname}shutdown" || rm -f "${pid_file}"; success "${procname}shutdown"
RC=$((! $RC)) # invert return code so we return 0 when process is dead.
return $RC
}
RETVAL=0
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=1
esac
exit $RETVAL
设置MongoDB服务开机自启动
chmod +x /etc/init.d/mongod
chkconfig mongod on
启动MongoDB服务
service mongod start
如果启动不成功：
主要查看 启动脚本 .sh 文件中的配置的环境变量是否正确， 同时查看db log的权限是否是脚本中配置的用户和组，同时可执行，我给的777
验证启动成功：
service mongod status
mongod.service - SYSV: Mongo is a scalable, document-oriented database.
Loaded: loaded (/etc/rc.d/init.d/mongod)
Active: active (running) since Fri 2017-12-15 23:34:50 EST; 31min ago
Process: 7648 ExecStop=/etc/rc.d/init.d/mongod stop (code=exited,status=0/SUCCESS)
Process: 7677 ExecStart=/etc/rc.d/init.d/mongod start (code=exited,status=0/SUCCESS)
Main PID: 7688 (mongod)
CGroup: /system.slice/mongod.service
└─7688/usr/local/mongodb/mongodb-linux-x86_64-3.6.0/bin/mongod -f /etc/mongod.conf
Dec 15 23:34:49 localhost.localdomain systemd[1]: Starting SYSV: Mongois a scalable, document-oriented database....
Dec 15 23:34:49 localhost.localdomain runuser[7684]:pam_unix(runuser:session): session opened for user mongod by (uid=0)
Dec 15 23:34:50 localhost.localdomain mongod[7677]: Starting mongod:[ OK ]
Dec 15 23:34:50 localhost.localdomain systemd[1]: Started SYSV: Mongo isa scalable, document-oriented database..
Mongodb编辑：
输入mongo:
> db.foo.find();
{"_id" : ObjectId("5a34a3de8420293d5f46b0ee"),"name" : "xiaonanhai", "age" : "23" }
> show dbs;
admin 0.000GB
config 0.000GB
local 0.000GB
test 0.000GB
>
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