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MongoDB 3.2.5安装过程详细记录

[日期:2017-03-10] 来源:Linux社区  作者:yumushui [字体: ]

1 准备安装介质

安装介质下载:

mongodb的安装方式,我通常使用二进制包的方式,内网不能配置连接外网的yum源;

官方建议的mongodb下载地址为:  Downloads.mongodb.org

但实际上,这个地址,很难找到下载表,正常下载,通常可以用下面的下载地址选择下载:

我这里下载的是: 3.2.5 版本对应的 mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8.tgz

如果将整个mongodb安装过程已经编写了脚本,可以获取安装脚本,用脚本执行安装;

如果手动安装,则可跳过此步;

手工安装mongodb的脚步的执行过程,一般如下:

mkdir -p /root/{software,scripts}

wget -q  http://ptmaster.test.cn/files/init/mongodb_install.sh  -O /root/scripts/mongodb_install.sh

cd /root/scripts

./mongodb_install.sh -p 27117

2 添加mongodb用户和环境变量,修改系统参数

groupadd mongodb

useradd -g mongodb mongodb

创建mongodb脚本目录

mkdir -p /home/mongodb/scripts/

修改目录权限:

chown -R mongodb:mongodb  /home/mongodb/scripts/

在 /etc/profile 中添加 mongodb 用户的环境变量:

# MongoDB Environment Variables

export PATH=$PATH:$HOME/bin:/usr/local/mongodb/bin:/home/mongodb/scripts/

是上面的变量生效:

source /etc/profile

实际操作过程如下:

[root@linuxidc etc]# id mongodb
id: mongodb: No such user
[root@linuxidc etc]#
[root@linuxidc etc]#
[root@linuxidc etc]# groupadd mongodb
useradd -g mongodb mongodb[root@linuxidc etc]# useradd -g mongodb mongodb
[root@linuxidc etc]#
[root@linuxidc etc]#
[root@linuxidc etc]# id mongodb
uid=801(mongodb) gid=801(mongodb) groups=801(mongodb)
[root@linuxidc etc]#

mongodb要求hugepage设置为禁用,soft limit设置足够大,可以在一开始修改,也可以到后面修改;

cat /etc/security/limits.d/90-nproc.conf

修改这个文件中下列的值

*              soft    nproc  2048

确保: soft nproc 的值至少是 soft nofile 值的一半;

修改后,退出当前用户,重新进入一下,设置就可以生效了;

禁用 hugepage 的值:

# echo "never" > /sys/kernel/mm/transparent_hugepage/enabled

# echo "never" >  /sys/kernel/mm/transparent_hugepage/defrag

备注:上面两个警告,现在不修改也不影响安装过程,后面会提示。

3. 安装mongodb软件

上传并解压软件:

cd /usr/local

rz mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8.tgz

tar -zxvf mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8.tgz

ln -sv mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8 /usr/local/mongodb

修改文件权限:

chown -R mongodb:mongodb mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8

chown -R mongodb:mongodb /usr/local/mongodb

实际操作过程如下:

[root@linuxidc src]# rz
rz waiting to receive.
Starting zmodem transfer.  Press Ctrl+C to cancel.
Transferring mongodb-linux-x86_64-rhel62-3.2.5.tar.gz...
  100%  66999 KB    16749 KB/sec    00:00:04      0 Errors
[root@linuxidc src]# ll
total 277792
-rw-r--r-- 1 root root  68607629 Oct 19 11:53 mongodb-linux-x86_64-rhel62-3.2.5.tar.gz
-rw-r--r-- 1 root root 215848960 Apr 19  2016 mongodb-linux-x86_64-rhel62-v3.2-latest
[root@linuxidc src]#
[root@linuxidc src]# tar -zxvf mongodb-linux-x86_64-rhel62-3.2.5.tar.gz
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongooplog
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongod
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongo
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongofiles
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/bsondump
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongorestore
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongos
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongoexport
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongodump
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongoimport
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongotop
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongostat
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongoperf
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/GNU-AGPL-3.0
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/MPL-2
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/README
mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/THIRD-PARTY-NOTICES
[root@linuxidc src]#
[root@linuxidc src]# ll
total 277796
drwxr-xr-x 3 root root      4096 Oct 19 11:54 mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8
-rw-r--r-- 1 root root  68607629 Oct 19 11:53 mongodb-linux-x86_64-rhel62-3.2.5.tar.gz
-rw-r--r-- 1 root root 215848960 Apr 19  2016 mongodb-linux-x86_64-rhel62-v3.2-latest
[root@linuxidc src]#
[root@linuxidc src]# mv mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8 ../
[root@linuxidc src]# cd ..
[root@linuxidc local]#
[root@linuxidc local]# ln -sv mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8 /usr/local/mongodb
`/usr/local/mongodb' -> `mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8'
[root@linuxidc local]#
[root@linuxidc local]# chown -R mongodb:mongodb mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8
[root@linuxidc local]# chown -R mongodb:mongodb /usr/local/mongodb
[root@linuxidc local]#
[root@linuxidc local]# ll
total 52
drwxr-xr-x.  2 root    root    4096 Apr 24  2014 bin
drwxr-xr-x.  2 root    root    4096 Sep 23  2011 etc
drwxr-xr-x.  2 root    root    4096 Sep 23  2011 games
drwxr-xr-x.  2 root    root    4096 Sep 23  2011 include
drwxr-xr-x.  2 root    root    4096 Sep 23  2011 lib
drwxr-xr-x.  3 root    root    4096 Apr 25  2014 lib64
drwxr-xr-x.  2 root    root    4096 Sep 23  2011 libexec
lrwxrwxrwx  1 root    root      25 Mar  6  2015 logstash -> /usr/local/logstash-1.4.2
drwxrwxr-x  8 logstash logstash 4096 Jun 24  2014 logstash-1.4.2
lrwxrwxrwx  1 mongodb  mongodb    45 Oct 19 11:59 mongodb -> mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8
drwxr-xr-x  3 mongodb  mongodb  4096 Oct 19 11:54 mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8
lrwxrwxrwx  1 root    root      39 Apr 23  2014 mysql -> /usr/local/mysql-5.5.19-linux2.6-x86_64
drwxr-xr-x  12 root    mysql    4096 Apr 23  2014 mysql-5.5.19-linux2.6-x86_64
drwxr-xr-x.  2 root    root    4096 Sep 23  2011 sbin
drwxr-xr-x.  6 root    root    4096 Apr 25  2014 share
drwxr-xr-x.  2 root    root    4096 Oct 19 11:54 src
[root@linuxidc local]#

4 创建mongodb实例所需的目录和配置文件

创建mongodb实例所需目录:

mkdir -p /data/mongo_27117/{db,log,tmp}

创建mongodb实例配置文件所需目录和文件:

mkdir -p /etc/mongodb

touch /etc/mongodb/mongo_27117.conf

根据需要配置mongodb的启动参数,我的启动参数配置内容如下:

vim /etc/mongodb/mongo_27117.conf

dbpath=/data/mongo_27117/db
logpath=/data/mongo_27117/log/mongo_27117.log
pidfilepath = /data/mongo_27117/tmp/mongo_27117.pid
storageEngine = wiredTiger
wiredTigerCacheSizeGB = 2
syncdelay = 30
wiredTigerCollectionBlockCompressor = zlib
port=27117
auth = true
directoryperdb = true
oplogSize=2048
logappend=true
fork=true
#rest=true
journal = true
journalCommitInterval = 50
slowms = 200

修改目录、文件的权限和属组:

chown -R mongodb:mongodb /data/mongo_27117/

chown -R mongodb:mongodb /etc/mongodb

确认目录和配置文件都已经准备完毕:

ls -l /data/mongo_27117/

ls -l  /etc/mongodb

cat  /etc/mongodb/mongo_27117.conf

该步骤实际操作过程如下:

[root@linuxidc local]#
[root@linuxidc local]# mkdir -p /data/mongo_27117/{db,log,tmp}
[root@linuxidc local]# mkdir -p /etc/mongodb
[root@yq

-mapp-otadb248 local]#
[root@linuxidc local]#
[root@linuxidc local]# vim /etc/mongodb/mongo_27117.conf
dbpath=/data/mongo_27117/db
logpath=/data/mongo_27117/log/mongo_27117.log
pidfilepath = /data/mongo_27117/tmp/mongo_27117.pid
storageEngine = wiredTiger
wiredTigerCacheSizeGB = 2
syncdelay = 30
wiredTigerCollectionBlockCompressor = zlib
port=27117
auth = true
directoryperdb = true
oplogSize=2048
logappend=true
fork=true
#rest=true
journal = true
journalCommitInterval = 50
slowms = 200
~
[root@linuxidc local]#
[root@linuxidc local]# chown -R mongodb:mongodb /data/mongo_27117/
[root@linuxidc local]# chown -R mongodb:mongodb /etc/mongodb
[root@linuxidc local]# ls -l /data/mongo_27117/
total 12
drwxr-xr-x 2 mongodb mongodb 4096 Oct 19 12:02 db
drwxr-xr-x 2 mongodb mongodb 4096 Oct 19 12:02 log
drwxr-xr-x 2 mongodb mongodb 4096 Oct 19 12:02 tmp
[root@linuxidc local]#
[root@linuxidc local]#
[root@linuxidc local]# ls -l  /etc/mongodb
total 4
-rw-r--r-- 1 mongodb mongodb 392 Oct 19 12:05 mongo_27117.conf
[root@linuxidc local]#
[root@linuxidc local]# cat  /etc/mongodb/mongo_27117.conf
dbpath=/data/mongo_27117/db
logpath=/data/mongo_27117/log/mongo_27117.log
pidfilepath = /data/mongo_27117/tmp/mongo_27117.pid
storageEngine = wiredTiger
wiredTigerCacheSizeGB = 2
syncdelay = 30
wiredTigerCollectionBlockCompressor = zlib
port=27117
auth = true
directoryperdb = true
oplogSize=2048
logappend=true
fork=true
#rest=true
journal = true
journalCommitInterval = 50
slowms = 200

5. 启动mongodb实例,修改管理员密码

使用下面的命令启动mongodb服务:

/usr/local/mongodb/bin/mongod --config /etc/mongodb/mongo_27117.conf

确认密码,mongodb的管理员密码,可以根据各自的规则设置:

echo $MONGODB_ROOT_PASS

mongodb_020248_Pass

修改管理员密码,注意 mongodb 3.2要对admin授予三个角色,这点与之前的版本不同:

/usr/local/mongodb/bin/mongo --port=27117

db.createUser({user:'useradmin',pwd:'mongodb_020248_Pass',roles:[ { "role" : "clusterAdmin", "db" : "admin" }, { "role" : "userAdminAnyDatabase", "db" : "admin" }, { "role" : "dbAdminAnyDatabase", "db" : "admin" } ] })

db.auth("useradmin","mongodb_020248_Pass")

db.system.users.find();

生成密码后,使用新用户和密码登陆mongo,确认状态:

/usr/local/mongodb/bin/mongo --port=27117 -u useradmin -p mongodb_020248_Pass --authenticationDatabase admin

该步骤操作过程如下;

[root@linuxidc local]#
[root@linuxidc local]# ps -ef|grep mongo
root    32295 30115  0 12:12 pts/0    00:00:00 grep mongo
[root@linuxidc local]#
[root@linuxidc local]# /usr/local/mongodb/bin/mongod --config /etc/mongodb/mongo_27117.conf
about to fork child process, waiting until server is ready for connections.
forked process: 32321
child process started successfully, parent exiting
[root@linuxidc local]#
[root@linuxidc local]# ps -ef|grep mongo
root    32321    1  1 12:12 ?        00:00:00 /usr/local/mongodb/bin/mongod --config /etc/mongodb/mongo_27117.conf
root    32359 30115  0 12:13 pts/0    00:00:00 grep mongo
[root@linuxidc local]#
[root@linuxidc local]#
[root@linuxidc local]# /usr/local/mongodb/bin/mongo --port=27117
MongoDB shell version: 3.2.5-20-g07e21d8
connecting to: 127.0.0.1:27117/test
Welcome to the MongoDB shell.

For interactive help, type "help".
For more comprehensive documentation, see
        http://docs.mongodb.org/
Questions? Try the support group
        http://groups.google.com/group/mongodb-user
>
> use admin;
switched to db admin
> db.system.users.find();
Error: error: {
        "ok" : 0,
        "errmsg" : "not authorized on admin to execute command { find: \"system.users\", filter: {} }",
        "code" : 13
}
>
> db.createUser({user:'useradmin',pwd:'mongodb_020248_@JJMatch',roles:[ { "role" : "clusterAdmin", "db" : "admin" }, { "role" : "userAdminAnyDatabase", "db" : "admin" }, { "role" : "dbAdminAnyDatabase", "db" : "admin" } ] })
Successfully added user: {
        "user" : "useradmin",
        "roles" : [
                {
                        "role" : "clusterAdmin",
                        "db" : "admin"
                },
                {
                        "role" : "userAdminAnyDatabase",
                        "db" : "admin"
                },
                {
                        "role" : "dbAdminAnyDatabase",
                        "db" : "admin"
                }
        ]
}
>
> db.system.users.find();
Error: error: {
        "ok" : 0,
        "errmsg" : "not authorized on admin to execute command { find: \"system.users\", filter: {} }",
        "code" : 13
}
>
> db.auth("useradmin","mongodb_020248_@JJMatch")
1
>
> db.system.users.find();
{ "_id" : "admin.useradmin", "user" : "useradmin", "db" : "admin", "credentials" : { "SCRAM-SHA-1" : { "iterationCount" : 10000, "salt" : "6hLx/d97hS+yfoN47QTmXQ==", "storedKey" : "B0PqwVs3GFKIHQyyQ6mBp1MA370=", "serverKey" : "xK53AKKAvFCdn5rsEtij5QB9RtU=" } }, "roles" : [ { "role" : "clusterAdmin", "db" : "admin" }, { "role" : "userAdminAnyDatabase", "db" : "admin" }, { "role" : "dbAdminAnyDatabase", "db" : "admin" } ] }
>
[root@linuxidc local]#
[root@linuxidc local]# /usr/local/mongodb/bin/mongo --port=27117 -u useradmin -p mongodb_020248_@JJMatch --authenticationDatabase admin
MongoDB shell version: 3.2.5-20-g07e21d8
connecting to: 127.0.0.1:27117/test
Server has startup warnings:
2016-10-19T12:12:59.096+0800 I CONTROL  [initandlisten]
2016-10-19T12:12:59.096+0800 I CONTROL  [initandlisten] ** WARNING: The server was started without specifying a --bind_ip
2016-10-19T12:12:59.096+0800 I CONTROL  [initandlisten] **          and listens for connections on all available network interfaces.
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] ** WARNING: You are running this process as the root user, which is not recommended.
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten]
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten]
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten]
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten]
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] ** WARNING: soft rlimits too low. rlimits set to 2048 processes, 8192 files. Number of processes should be at least 4096 : 0.5 times number of files.
2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten]
>
> use admin;
switched to db admin
>
> db.system.users.find();
{ "_id" : "admin.useradmin", "user" : "useradmin", "db" : "admin", "credentials" : { "SCRAM-SHA-1" : { "iterationCount" : 10000, "salt" : "6hLx/d97hS+yfoN47QTmXQ==", "storedKey" : "B0PqwVs3GFKIHQyyQ6mBp1MA370=", "serverKey" : "xK53AKKAvFCdn5rsEtij5QB9RtU=" } }, "roles" : [ { "role" : "clusterAdmin", "db" : "admin" }, { "role" : "userAdminAnyDatabase", "db" : "admin" }, { "role" : "dbAdminAnyDatabase", "db" : "admin" } ] }
>
>

6.  创建应用所需的业务账号

创建一个 admin / admin 用户,具有可以自行创建用户和数据库的权限,密码业务自己再修改:

db.createUser({user:'admin',pwd:'admin',roles:[{role:'userAdminAnyDatabase',db:'admin'},{role:'dbAdminAnyDatabase',db:'admin'}]})

验证业务账号登陆:

/usr/local/mongodb/bin/mongo --port=27117 -u admin -p admin --authenticationDatabase admin

该步骤,实际操作过程如下:

>
> db.system.users.find().pretty()
{
        "_id" : "admin.useradmin",
        "user" : "useradmin",
        "db" : "admin",
        "credentials" : {
                "SCRAM-SHA-1" : {
                        "iterationCount" : 10000,
                        "salt" : "6hLx/d97hS+yfoN47QTmXQ==",
                        "storedKey" : "B0PqwVs3GFKIHQyyQ6mBp1MA370=",
                        "serverKey" : "xK53AKKAvFCdn5rsEtij5QB9RtU="
                }
        },
        "roles" : [
                {
                        "role" : "clusterAdmin",
                        "db" : "admin"
                },
                {
                        "role" : "userAdminAnyDatabase",
                        "db" : "admin"
                },
                {
                        "role" : "dbAdminAnyDatabase",
                        "db" : "admin"
                }
        ]
}
{
        "_id" : "admin.admin",
        "user" : "admin",
        "db" : "admin",
        "credentials" : {
                "SCRAM-SHA-1" : {
                        "iterationCount" : 10000,
                        "salt" : "snlJe16a2PX3dSwxnOsfAw==",
                        "storedKey" : "VOoX1e7F0tOme6YuR+iyMLuEWK8=",
                        "serverKey" : "aSlpI7TzlyJ5Ccbd8GoptNB8khk="
                }
        },
        "roles" : [
                {
                        "role" : "userAdminAnyDatabase",
                        "db" : "admin"
                },
                {
                        "role" : "dbAdminAnyDatabase",
                        "db" : "admin"
                }
        ]
}
>
> ^C
bye
[root@linuxidc local]#
[root@linuxidc local]#
[root@linuxidc local]#
[root@linuxidc local]# /usr/local/mongodb/bin/mongo --port=27117 -u admin -p admin --authenticationDatabase admin
MongoDB shell version: 3.2.5-20-g07e21d8
connecting to: 127.0.0.1:27117/test
>
> show dbs
admin  0.000GB
local  0.000GB
>
>

7. 启动时的报警处理

在mongodb启动过程中,有时会提示一些警告,其中常见的两类警告处理过程如下:

警告1:

提示:

2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] ** WARNING: soft rlimits too low. rlimits set to 2048 processes, 8192 files. Number of processes should be at least 4096 : 0.5 times number of files.

处理方式,根据提示,将 processes  值,由现在的 2048,修改为4096,甚至更高的值。

ps -ef|grep mongod

cat /proc/32321/limits

cat /etc/security/limits.d/90-nproc.conf

vim /etc/security/limits.d/90-nproc.conf

该步骤实际操作过程如下:

[root@linuxidc limits.d]#
[root@linuxidc limits.d]# cat /etc/security/limits.d/90-nproc.conf
# 20160621 limit??
#*              soft    nproc          51200
#*              hard    nproc          51200
*              soft    nproc          2048
*              hard

nproc          16384
*              soft    nofile          8192
*              hard    nofile          8192
*              soft    stack          8192
*              hard    stack          8192
*              soft    memlock        unlimited
*              hard    memlock        unlimited
[root@linuxidc limits.d]# vim /etc/security/limits.d/90-nproc.conf
# 20160621
#*              soft    nproc          51200
#*              hard    nproc          51200
*              soft    nproc          8192
*              hard    nproc          16384
[root@linuxidc ~]#
[root@linuxidc ~]# ulimt -a
-bash: ulimt: command not found
[root@linuxidc ~]# ulimit -a
core file size          (blocks, -c) 0
data seg size          (kbytes, -d) unlimited
scheduling priority            (-e) 0
file size              (blocks, -f) unlimited
pending signals                (-i) 30422
max locked memory      (kbytes, -l) unlimited
max memory size        (kbytes, -m) unlimited
open files                      (-n) 8192
pipe size            (512 bytes, -p) 8
POSIX message queues    (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 8192
cpu time              (seconds, -t) unlimited
max user processes              (-u) 8192
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

警告2:

2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.

2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'

2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten]

2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.

2016-10-19T12:12:59.097+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'

确认:

cat /sys/kernel/mm/transparent_hugepage/enabled

cat /sys/kernel/mm/transparent_hugepage/defrag

处理:

echo "never" > /sys/kernel/mm/transparent_hugepage/enabled

echo "never" >  /sys/kernel/mm/transparent_hugepage/defrag

该步骤,实际操作过程如下:

[root@linuxidc limits.d]# cat /sys/kernel/mm/transparent_hugepage/enabled
[always] madvise never
[root@linuxidc limits.d]# cat /sys/kernel/mm/transparent_hugepage/defrag
[always] madvise never
[root@linuxidc limits.d]#
[root@linuxidc limits.d]# echo "never" > /sys/kernel/mm/transparent_hugepage/enabled
[root@linuxidc limits.d]# echo "never" >  /sys/kernel/mm/transparent_hugepage/defrag
[root@linuxidc limits.d]#
[root@linuxidc limits.d]# cat /sys/kernel/mm/transparent_hugepage/enabled
always madvise [never]
[root@linuxidc limits.d]#  cat /sys/kernel/mm/transparent_hugepage/defrag
always madvise [never]
[root@linuxidc limits.d]#
[root@linuxidc limits.d]#

8 创建mongodb实例管理脚本

为了方便对mongodb实例的启动和停止,可以先创建mongodb的启动脚本,停止脚本,然后在 /etc/init.d/ 目录下创建一个服务脚本,这样就可以用 service 进行实例管理了。

脚本1:启动脚本:

vim /home/mongodb/scripts/mongodb_start.sh

#!/bin/sh
# the scripts is used to start mongodb instance with port 27117.
# created by zhaofx on 20161019.
echo -n "Starting MongoDB port 27117 ... "
/usr/local/mongodb/bin/mongod --config /etc/mongodb/mongo_27117.conf &

脚本二:停止脚本:

vim /home/mongodb/scripts/mongodb_stop.sh

#!/bin/bash
# the scripts is used to stop mongodb instance with port 27117.
# created by zhaofx on 20161019.
echo -n "Stopping MongoDB port 27117"
pid=`ps -o pid,command ax | grep mongod | awk '!/awk/ && !/grep/ {print $1}'`;
if [ "${pid}" != "" ]; then
        kill -2 ${pid};
fi

脚本三:服务脚本:

vim /etc/init.d/mongodb

#! /bin/sh
# the scripts is used to mange mongodb service with linux service type.
# created by zhaofx on 20161019.
PATH=/usr/local/mongodb/bin:/sbin:/bin:/usr/sbin:/usr/bin
NAME=mongodb
start(){
/home/mongodb/scripts/mongodb_start.sh
}
stop(){
/home/mongodb/scripts/mongodb_stop.sh
}
test -x $DAEMON || exit 0
set -e
case "$1" in
        start)
                start
                ;;
        stop)
                stop
                ;;
        *)
                N=/etc/init.d/$NAME
                echo "Usage: $N {start|stop}" >&2
                exit 1
                ;;
esac
exit 0

修改脚本的属组,添加执行权限:

chown -R mongodb:mongodb  /home/mongodb/scripts/
chown  mongodb:mongodb  /etc/init.d/mongodb
chmod +x  /home/mongodb/scripts/mongodb_start.sh
chmod +x  /home/mongodb/scripts/mongodb_stop.sh
chmod +x  /etc/init.d/mongodb

最后执行服务启动和停止mongodb实例的过程为:

[root@linuxidc ~]#
[root@linuxidc ~]# service mongodb stop
Stopping MongoDB port 27117
[root@linuxidc ~]#
[root@linuxidc ~]#
[root@linuxidc ~]#
[root@linuxidc ~]# service mongodb start
Starting MongoDB port 27117 ... [root@linuxidc ~]
about to fork child process, waiting until server is ready for connections.
forked process: 36088
child process started successfully, parent exiting
[root@linuxidc ~]#

更多MongoDB相关教程见以下内容

CentOS 编译安装 MongoDB与mongoDB的php扩展 http://www.linuxidc.com/Linux/2012-02/53833.htm

CentOS 6 使用 yum 安装MongoDB及服务器端配置 http://www.linuxidc.com/Linux/2012-08/68196.htm

Ubuntu 13.04下安装MongoDB2.4.3 http://www.linuxidc.com/Linux/2013-05/84227.htm

MongoDB入门必读(概念与实战并重) http://www.linuxidc.com/Linux/2013-07/87105.htm

Ubunu 14.04下MongoDB的安装指南 http://www.linuxidc.com/Linux/2014-08/105364.htm

《MongoDB 权威指南》(MongoDB: The Definitive Guide)英文文字版[PDF] http://www.linuxidc.com/Linux/2012-07/66735.htm

Nagios监控MongoDB分片集群服务实战 http://www.linuxidc.com/Linux/2014-10/107826.htm

基于CentOS 6.5操作系统搭建MongoDB服务 http://www.linuxidc.com/Linux/2014-11/108900.htm

MongoDB 的详细介绍请点这里
MongoDB 的下载地址请点这里

本文永久更新链接地址http://www.linuxidc.com/Linux/2017-03/141639.htm

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