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mongodb 3.2.5安装过程详细记录

发表于：2025-01-20 作者：千家信息网编辑

千家信息网最后更新 2025年01月20日，2016-10-19 mongodb 3.2.5安装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

千家信息网最后更新 2025年01月20日mongodb 3.2.5安装过程详细记录

2016-10-19 mongodb 3.2.5安装

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@yq-mapp-otadb248 etc]# id mongodbid: mongodb: No such user[root@yq-mapp-otadb248 etc]#[root@yq-mapp-otadb248 etc]#[root@yq-mapp-otadb248 etc]# groupadd mongodbuseradd -g mongodb mongodb[root@yq-mapp-otadb248 etc]# useradd -g mongodb mongodb[root@yq-mapp-otadb248 etc]#[root@yq-mapp-otadb248 etc]#[root@yq-mapp-otadb248 etc]# id mongodbuid=801(mongodb) gid=801(mongodb) groups=801(mongodb)[root@yq-mapp-otadb248 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@yq-mapp-otadb248 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@yq-mapp-otadb248 src]# lltotal 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@yq-mapp-otadb248 src]# [root@yq-mapp-otadb248 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/mongooplogmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongodmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongomongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongofilesmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/bsondumpmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongorestoremongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongosmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongoexportmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongodumpmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongoimportmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongotopmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongostatmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/bin/mongoperfmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/GNU-AGPL-3.0mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/MPL-2mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/READMEmongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8/THIRD-PARTY-NOTICES[root@yq-mapp-otadb248 src]# [root@yq-mapp-otadb248 src]# lltotal 277796drwxr-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@yq-mapp-otadb248 src]# [root@yq-mapp-otadb248 src]# mv mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8 ../[root@yq-mapp-otadb248 src]# cd ..[root@yq-mapp-otadb248 local]# [root@yq-mapp-otadb248 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@yq-mapp-otadb248 local]# [root@yq-mapp-otadb248 local]# chown -R mongodb:mongodb mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8[root@yq-mapp-otadb248 local]# chown -R mongodb:mongodb /usr/local/mongodb[root@yq-mapp-otadb248 local]# [root@yq-mapp-otadb248 local]# lltotal 52drwxr-xr-x.  2 root     root     4096 Apr 24  2014 bindrwxr-xr-x.  2 root     root     4096 Sep 23  2011 etcdrwxr-xr-x.  2 root     root     4096 Sep 23  2011 gamesdrwxr-xr-x.  2 root     root     4096 Sep 23  2011 includedrwxr-xr-x.  2 root     root     4096 Sep 23  2011 libdrwxr-xr-x.  3 root     root     4096 Apr 25  2014 lib64drwxr-xr-x.  2 root     root     4096 Sep 23  2011 libexeclrwxrwxrwx   1 root     root       25 Mar  6  2015 logstash -> /usr/local/logstash-1.4.2drwxrwxr-x   8 logstash logstash 4096 Jun 24  2014 logstash-1.4.2lrwxrwxrwx   1 mongodb  mongodb    45 Oct 19 11:59 mongodb -> mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8drwxr-xr-x   3 mongodb  mongodb  4096 Oct 19 11:54 mongodb-linux-x86_64-rhel62-3.2.5-20-g07e21d8lrwxrwxrwx   1 root     root       39 Apr 23  2014 mysql -> /usr/local/mysql-5.5.19-linux2.6-x86_64drwxr-xr-x  12 root     mysql    4096 Apr 23  2014 mysql-5.5.19-linux2.6-x86_64drwxr-xr-x.  2 root     root     4096 Sep 23  2011 sbindrwxr-xr-x.  6 root     root     4096 Apr 25  2014 sharedrwxr-xr-x.  2 root     root     4096 Oct 19 11:54 src[root@yq-mapp-otadb248 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/dblogpath=/data/mongo_27117/log/mongo_27117.logpidfilepath = /data/mongo_27117/tmp/mongo_27117.pidstorageEngine = wiredTigerwiredTigerCacheSizeGB = 2syncdelay = 30wiredTigerCollectionBlockCompressor = zlibport=27117auth = true directoryperdb = trueoplogSize=2048logappend=truefork=true#rest=truejournal = truejournalCommitInterval = 50slowms = 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@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# mkdir -p /data/mongo_27117/{db,log,tmp}[root@yq-mapp-otadb248 local]# mkdir -p /etc/mongodb[root@yq

-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# vim /etc/mongodb/mongo_27117.confdbpath=/data/mongo_27117/dblogpath=/data/mongo_27117/log/mongo_27117.logpidfilepath = /data/mongo_27117/tmp/mongo_27117.pidstorageEngine = wiredTigerwiredTigerCacheSizeGB = 2syncdelay = 30wiredTigerCollectionBlockCompressor = zlibport=27117auth = truedirectoryperdb = trueoplogSize=2048logappend=truefork=true#rest=truejournal = truejournalCommitInterval = 50slowms = 200~[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# chown -R mongodb:mongodb /data/mongo_27117/[root@yq-mapp-otadb248 local]# chown -R mongodb:mongodb /etc/mongodb[root@yq-mapp-otadb248 local]# ls -l /data/mongo_27117/total 12drwxr-xr-x 2 mongodb mongodb 4096 Oct 19 12:02 dbdrwxr-xr-x 2 mongodb mongodb 4096 Oct 19 12:02 logdrwxr-xr-x 2 mongodb mongodb 4096 Oct 19 12:02 tmp[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# ls -l  /etc/mongodbtotal 4-rw-r--r-- 1 mongodb mongodb 392 Oct 19 12:05 mongo_27117.conf[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# cat  /etc/mongodb/mongo_27117.confdbpath=/data/mongo_27117/dblogpath=/data/mongo_27117/log/mongo_27117.logpidfilepath = /data/mongo_27117/tmp/mongo_27117.pidstorageEngine = wiredTigerwiredTigerCacheSizeGB = 2syncdelay = 30wiredTigerCollectionBlockCompressor = zlibport=27117auth = true directoryperdb = trueoplogSize=2048logappend=truefork=true#rest=truejournal = truejournalCommitInterval = 50slowms = 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@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# ps -ef|grep mongoroot     32295 30115  0 12:12 pts/0    00:00:00 grep mongo[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# /usr/local/mongodb/bin/mongod --config /etc/mongodb/mongo_27117.confabout to fork child process, waiting until server is ready for connections.forked process: 32321child process started successfully, parent exiting[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# ps -ef|grep mongoroot     32321     1  1 12:12 ?        00:00:00 /usr/local/mongodb/bin/mongod --config /etc/mongodb/mongo_27117.confroot     32359 30115  0 12:13 pts/0    00:00:00 grep mongo[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# /usr/local/mongodb/bin/mongo --port=27117MongoDB shell version: 3.2.5-20-g07e21d8connecting to: 127.0.0.1:27117/testWelcome 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@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# /usr/local/mongodb/bin/mongo --port=27117 -u useradmin -p mongodb_020248_@JJMatch --authenticationDatabase adminMongoDB shell version: 3.2.5-20-g07e21d8connecting to: 127.0.0.1:27117/testServer 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_ip2016-10-19T12:12:59.096+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"                }        ]}>> ^Cbye[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]#[root@yq-mapp-otadb248 local]# /usr/local/mongodb/bin/mongo --port=27117 -u admin -p admin --authenticationDatabase adminMongoDB shell version: 3.2.5-20-g07e21d8connecting to: 127.0.0.1:27117/test>> show dbsadmin  0.000GBlocal  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.

参考： http://blog.csdn.net/kk185800961/article/details/45613267

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@yq-mapp-otadb248 limits.d]#[root@yq-mapp-otadb248 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@yq-mapp-otadb248 limits.d]# vim /etc/security/limits.d/90-nproc.conf# 20160621#*              soft    nproc           51200#*              hard    nproc           51200*               soft    nproc           8192*               hard    nproc           16384[root@yq-mapp-otadb248 ~]#[root@yq-mapp-otadb248 ~]# ulimt -a-bash: ulimt: command not found[root@yq-mapp-otadb248 ~]# ulimit -acore file size          (blocks, -c) 0data seg size           (kbytes, -d) unlimitedscheduling priority             (-e) 0file size               (blocks, -f) unlimitedpending signals                 (-i) 30422max locked memory       (kbytes, -l) unlimitedmax memory size         (kbytes, -m) unlimitedopen files                      (-n) 8192pipe size            (512 bytes, -p) 8POSIX message queues     (bytes, -q) 819200real-time priority              (-r) 0stack size              (kbytes, -s) 8192cpu time               (seconds, -t) unlimitedmax user processes              (-u) 8192virtual memory          (kbytes, -v) unlimitedfile 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@yq-mapp-otadb248 limits.d]# cat /sys/kernel/mm/transparent_hugepage/enabled[always] madvise never[root@yq-mapp-otadb248 limits.d]# cat /sys/kernel/mm/transparent_hugepage/defrag[always] madvise never[root@yq-mapp-otadb248 limits.d]#[root@yq-mapp-otadb248 limits.d]# echo "never" > /sys/kernel/mm/transparent_hugepage/enabled[root@yq-mapp-otadb248 limits.d]# echo "never" >  /sys/kernel/mm/transparent_hugepage/defrag[root@yq-mapp-otadb248 limits.d]#[root@yq-mapp-otadb248 limits.d]# cat /sys/kernel/mm/transparent_hugepage/enabledalways madvise [never][root@yq-mapp-otadb248 limits.d]#  cat /sys/kernel/mm/transparent_hugepage/defragalways madvise [never][root@yq-mapp-otadb248 limits.d]#[root@yq-mapp-otadb248 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/binNAME=mongodbstart(){/home/mongodb/scripts/mongodb_start.sh}stop(){/home/mongodb/scripts/mongodb_stop.sh}test -x $DAEMON || exit 0set -ecase "$1" in        start)                start                ;;        stop)                stop                ;;        *)                N=/etc/init.d/$NAME                echo "Usage: $N {start|stop}" >&2                exit 1                ;;esacexit 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/mongodbchmod +x  /home/mongodb/scripts/mongodb_start.shchmod +x  /home/mongodb/scripts/mongodb_stop.shchmod +x  /etc/init.d/mongodb

最后执行服务启动和停止mongodb实例的过程为：

[root@yq-mapp-otadb248 ~]#[root@yq-mapp-otadb248 ~]# service mongodb stopStopping MongoDB port 27117[root@yq-mapp-otadb248 ~]#[root@yq-mapp-otadb248 ~]#[root@yq-mapp-otadb248 ~]#[root@yq-mapp-otadb248 ~]# service mongodb startStarting MongoDB port 27117 ... [root@yq-mapp-otadb248 ~]about to fork child process, waiting until server is ready for connections.forked process: 36088child process started successfully, parent exiting[root@yq-mapp-otadb248 ~]#

mongodb 3.2.5安装过程详细记录- END

很赞哦！