Shulou(Shulou.com)05/31 Report--

This article introduces the relevant knowledge of "how to use Yum to install MongoDB Linux version". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. Environmental description

In this paper, Red Hat 6.5 is used for the experiment.

[root@oracle-test ~] # cat / etc/redhat-release

Red Hat Enterprise Linux Server release 6.5 (Santiago)

[root@oracle-test ~] # uname-r

2.6.32-431.el6.x86_64

The target version for installation is the latest version 3.4 of MongoDB.

2. Use yum for installation

From the official MongoDB website, get the address of the yum repository. Create the corresponding Repo file.

[root@oracle-test ~] # cd / etc/yum.repos.d/

[root@oracle-test yum.repos.d] # ls-l

Total 12

-rw-r--r--. 1 root root 74 Dec 28 2016 localyum.repo

-rw-r--r--. 1 root root 198 Jul 16 13:02 mongodb-org-3.4.repo

-rw-r--r--. 1 root root 636 Sep 14 2016 zabbix.repo

Corresponding information:

[root@oracle-test yum.repos.d] # cat mongodb-org-3.4.repo

[mongodb-org-3.4]

Name=MongoDB Repository

Baseurl= https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.4/x86_64

Gpgcheck=1

Enable=1

Gpgkey= https://www.mongodb.org/static/pgp/server-3.4.asc

Call yum to install. Note: on the yum installation object, there are several objects that represent different installation contents:

ü mongodb-org:MongoDB complete set of information, including Server, Client (Mongo Shell), various types of tools

ü mongodb-org-server: server component

ü mongodb-org-shell:MongoDB Shell component, similar to sqlplus

ü mongodb-org-tools: backup and restore tools, data import and export, etc.

[root@oracle-test yum.repos.d] # yum install-y mongodb-org

Loaded plugins: product-id, refresh-packagekit, security, subscription-manager

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

Setting up Install Process

Resolving Dependencies

-> Running transaction check

-> Package mongodb-org.x86_64 0RU 3.4.6-1.el6 will be installed

-- > Processing Dependency: mongodb-org-tools = 3.4.6 for package: mongodb-org-3.4.6-1.el6.x86_64

-- > Processing Dependency: mongodb-org-shell = 3.4.6 for package: mongodb-org-3.4.6-1.el6.x86_64

-- > Processing Dependency: mongodb-org-server = 3.4.6 for package: mongodb-org-3.4.6-1.el6.x86_64

-- > Processing Dependency: mongodb-org-mongos = 3.4.6 for package: mongodb-org-3.4.6-1.el6.x86_64

-> Running transaction check

-> Package mongodb-org-mongos.x86_64 0RU 3.4.6-1.el6 will be installed

-> Package mongodb-org-server.x86_64 0RU 3.4.6-1.el6 will be installed

-> Package mongodb-org-shell.x86_64 0RU 3.4.6-1.el6 will be installed

-> Package mongodb-org-tools.x86_64 0RU 3.4.6-1.el6 will be installed

(for reasons of space, there are omissions.)

Running rpm_check_debug

Running Transaction Test

Transaction Test Succeeded

Dependency Installed:

Mongodb-org-mongos.x86_64 0RO 3.4.6-1.el6

Mongodb-org-server.x86_64 0RO 3.4.6-1.el6

Mongodb-org-shell.x86_64 0RO 3.4.6-1.el6

Mongodb-org-tools.x86_64 0RO 3.4.6-1.el6

Complete!

[root@oracle-test yum.repos.d] #

In addition, in the domestic server, due to network reasons, there may be downloads during the timeout interruption. You can retry several times, or after you know the download address, download it separately through the support breakpoint program.

3. Follow-up configuration

There are several advantages of using yum, one is that there is a configuration file for program control by default, and the other is that it is automatically organized as an operating system service Service.

Like Oracle, we recommend that Selinux be turned off.

[root@oracle-test yum.repos.d] # vi / etc/selinux/config

# This file controls the state of SELinux on the system.

# SELINUX= can take one of these three values:

# enforcing-SELinux security policy is enforced.

# permissive-SELinux prints warnings instead of enforcing.

# disabled-No SELinux policy is loaded.

SELINUX=disabled

Run as an operating system service to avoid separate shell execution.

[root@oracle-test ~] # chkconfig | grep mongod

Mongod 0:off 1:off 2:off 3:on 4:off 5:on 6:off

[root@oracle-test ~] # service mongod status

Mongod (pid 2078) is running...

[root@oracle-test log] # ps-ef | grep mongo

Mongod 2078 1 0 14:25? 00:00:01 / usr/bin/mongod-f / etc/mongod.conf

Root 2419 2336 0 14:29 pts/0 00:00:00 grep mongo

[root@oracle-test log] # id mongod

Uid=495 (mongod) gid=490 (mongod) groups=490 (mongod)

Observe several aspects:

First, the rpm installer creates a separate user mongod as the main body of the running program. Secondly, the mongod startup parameters are saved on the operating system as a configuration file / etc/mongod.conf and can be edited and run. Third, you can see the boot auto-startup program service in chkconfig.

Log and data files, tarball installation is relatively "crude", are / data/db directory and direct input to the screen. With mongod.conf configuration, this flexibility is much better.

Log file:

[root@oracle-test ~] # cd / var/log/

[root@oracle-test log] # ls-l | grep mongo

Drwxr-xr-x. 2 mongod mongod 4096 Jul 16 14:16 mongodb

[root@oracle-test mongodb] # pwd

/ var/log/mongodb

[root@oracle-test mongodb] # ls-l

Total 4

-rw-r-. 1 mongod mongod 4062 Jul 16 14:25 mongod.log

Initial profile project:

[root@oracle-test mongodb] # cd / etc

[root@oracle-test etc] # ls-l | grep mongod.conf

-rw-r--r--. 1 root root 768 Jul 6 02:55 mongod.conf

[root@oracle-test etc] # cat 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: / var/log/mongodb/mongod.log-Log file location

# Where and how to store data.

Storage:

DbPath: / var/lib/mongo-- where the data is stored

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:

For various configuration items, please refer to the official Mongodb documentation: https://docs.mongodb.com/manual/reference/configuration-options/.

4. Parameter modification experiment

Try to make simple changes on the mongod.conf file. For MongoDB, in addition to port 27017, there will be a 28017 Web access interface. It is not open by default and needs to be opened using a configuration file.

Net:

Port: 27017

BindIp: 127.0.0.1 # Listen to local interface only, comment to listen on all interfaces.

Http:

Enabled: true

JSONPEnabled: true

RESTInterfaceEnabled: true

"mongod.conf" 47L, 847C written

Restart the mongod service.

[root@oracle-test etc] # service mongod restart

Stopping mongod: [OK]

Starting mongod: [OK]

2017-07-16T14:44:12.957+0800 I CONTROL [initandlisten]

2017-07-16T14:44:12.960+0800 I NETWORK [websvr] admin web console waiting for connections on port 28017

2017-07-16T14:44:12.961+0800 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory'/ var/lib/mongo/diagnostic.data'

2017-07-16T14:44:12.961+0800 I NETWORK [thread1] waiting for connections on port 27017

Note: at this time, you can only log in locally, and you cannot access it by using shell or web pages from a remote client.

C:\ Users\ admin > mongo-- host 172.xx.xx.xxx

MongoDB shell version v3.4.5

Connecting to: mongodb://172.xx.xx.xxx:27017/

2017-07-16T15:01:45.913+0800 W NETWORK [thread1] Failed to connect to 172.16.19

. 143:27017 after 5000ms milliseconds, giving up.

2017-07-16T15:01:45.914+0800 E QUERY [thread1] Error: couldn't connect to ser

Ver 172.xx.xx.xxx:27017, connection attempt failed:

Connect@src/mongo/shell/mongo.js:237:13

@ (connect): 1:6

Exception: connect failed

The reason lies in the bindIP content of the net parameter. The default is:

Net:

Port: 27017

BindIp: 127.0.0.1 # Listen to local interface only, comment to listen on all interfaces.

It needs to be changed to 0.0.0.0, otherwise it can only be in the local project.

Net:

Port: 27017

BindIp: 0.0.0.0 # Listen to local interface only, comment to listen on all interfaces.

[root@oracle-test etc] # service mongod restart

Stopping mongod: [OK]

Starting mongod: [OK]

C:\ Users\ admin > mongo-- host 172.xx.xx.xxx

MongoDB shell version v3.4.5

Connecting to: mongodb://172.xx.xx.xxx:27017/

MongoDB server version: 3.4.6

Server has startup warnings:

(for reasons of space, there are omissions. )

2017-07-16T15:12:19.433+0800 I CONTROL [initandlisten]

2017-07-16T15:12:19.433+0800 I CONTROL [initandlisten] * * WARNING: soft rlimits

Too low. Rlimits set to 1024 processes, 64000 files. Number of processes should

Be at least 32000: 0.5 times number of files.

2017-07-16T15:12:19.433+0800 I CONTROL [initandlisten]

>

For the soft rlimits prompt that appears, you can modify the limits.conf file to set an additional limit.

[root@oracle-test ~] # vi / etc/security/limits.conf

# @ student-maxlogins 4

Mongod soft nofile 64000

Mongod hard nofile 64000

Mongod soft nproc 32000

Mongod hard nproc 32000

[root@oracle-test ~] # service mongod restart

Stopping mongod: [OK]

Starting mongod: [OK]

5. Conclusion

This article introduces the method of installing mongodb using yum. In this way, there will be fewer system errors and clearer configuration projects.

This is the end of "how to use Yum to install MongoDB Linux version". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.