Shulou(Shulou.com)06/01 Report--

1. Download MongoDB

two。 Extract the file to a directory and rename it:

[root@localhost var] # tar-xzvf mongodb-linux-x86_64-enterprise-rhel62-3.4.9.tgz

[root@localhost var] # mv mongodb-linux-x86_64-enterprise-rhel62-3.4.9 / usr/local/mongodb

Mongod under bin is the server process of MongoDB, mongo is its client, and other commands are used for other purposes of MongoDB, such as MongoDB file export.

3. Start MongoDB.

To first establish a directory where MongoDB stores data files and log files, it is established here under / data:

[root@localhost var] # cd / data/db

[root@localhost db] # mkdir mongodb_data

[root@localhost db] # mkdir mongodb_log

[root@localhost db] # ls

Mongodb_data mongodb_log

Use mongod to start MongoDB under bin under the MongoDB installation directory

. / mongod-- dbpath=/data/db/mongodb_data/-- logpath=/data/db/mongodb_log/mongodb.log-- logappend&

After waiting for the startup to be successful, you can check to see if the startup is successful. The default port number is 27017. Of course, you can also specify other unused ports at startup.

First check the port number to see if MongoDB is started.

[root@localhost / db] # netstat-lanp | grep "27017"

Tcp 0 0 0.0.0 0 27017 0.0.0 0 15 * LISTEN 2442/mongod

Unix 2 [ACC] STREAM LISTENING 18203 2442/mongod / tmp/mongodb-27017.sock

You can see that it started successfully, so now use the mongo client to access the database.

[root@localhost bin] #. / mongo

MongoDB shell version v3.4.9

Connecting to: mongodb://127.0.0.1:27017

MongoDB server version: 3.4.9

Connecting to: test

>

Installation succeeded

4. Extra work.

Put mongod in the service self-startup item

Edit / etc/rc.d/rc.local, add the following code and then save it.

# add mongonDB service

Rm-rf / data/db/mongodb_data/* & & / usr/local/mongodb/bin/mongod-- dbpath=/data/db/mongodb_data/-- logpath=/data/db/mongodb_log/mongodb.log-- logappend&

We restart the computer to see if MongoDB starts. After restarting, we can log in directly using the mongo command, and finally find that it can be successful.

In addition, we use the mongo command to log in to MongoDB and then go to the directory where the mongo command is located and execute. / mongo, isn't that a bit of a hassle? Therefore, we can simplify this by copy the command file under / usr/bin so that we can use the mongo command in any directory.

[root@localhost bin] # ls

Bsondump dbbak mongo mongod mongodump mongoexport mongofiles mongoimport mongorestore mongos mongosniff mongostat

[root@localhost bin] # cp mongo / usr/bin/

Go to any directory and try the mongo command:

[root@localhost bin] # cd /

[root@localhost /] # mongo

MongoDB shell version: 1.8.1

Connecting to: test

>

You can see that the login is successful, which means we can use the mongo command just like we did with the ls command.

Connect to the database (if test does not exist, create a test directly):

Use test

Display the database:

Show dbs

Insert a record (after switching to the specified database, at least one document needs to be inserted before the database name is displayed in show dbs):

Db.items.insert ({"name": "yiibai tutorials"})

Create a user and password (on the admin library):

Db.createUser ({user: "lich", pwd: "goodjob1234", roles: [{role: "userAdminAnyDatabase", db: "admin"}]})

Verify user permissions (if 1 is returned, the user exists):

Db.auth ('lich','goodjob1234')

View all users in the admin library:

Use admin

Db.system.users.find ()

View all tables:

Show tables

In addition to the above default startup method, you can also start mongodb by configuring mongod.conf (failed to test)

There are two ways to start MongoDB, one is to start by default, and the other is to specify a configuration file. The startup method is as follows:

1: / etc/init.d/mongod start or service mongod start

2: mongod-- config / etc/mongodb.conf

Let's take a look at the configuration file:

Vi / etc/mongod.conf

# Log file location

Logpath=/var/log/mongo/mongod.log

# write to the log by append

Logappend=true

# whether to run in daemon mode

Fork = true

# default 27017

# port = 27017

# Database file location

Dbpath=/var/lib/mongo

# enable periodic recording of CPU utilization and IGM O wait

# cpu = true

# whether to run in a secure authentication mode. The default is a non-secure way that is not certified.

# noauth = true

# auth = true

# detailed record output

# verbose = true

# Inspect all client data for validity on receipt (useful for

# developing drivers) used to validate client requests when developing a driver

# objcheck = true

# Enable db quota management

# enable database quota management

# quota = true

# set oplog record level

# Set oplogging level where n is

# 0=off (default)

# 1 / W

# 2r

# 3=both

# 7=W+some reads

# diaglog=0

# Diagnostic/debugging option dynamic debugging items

# nocursors = true

# Ignore query hints ignores query hints

# nohints = true

# disable http interface. Default is localhost:28017

# nohttpinterface = true

# turn off server-side scripts, which will greatly limit the functionality

# Turns off server-side scripting. This will result in greatly limited

# functionality

# noscripting = true

# turn off scanning table, any query will cause scan failure

# Turns off table scans. Any query that would do a table scan fails.

# notablescan = true

# turn off data file pre-allocation

# Disable data file preallocation.

# noprealloc = true

# specify the size of the .ns file for the new database, in MB

# Specify. Ns file size for new databases.

# nssize =

# Replication Options replication options

# in replicated mongo databases, specify the replica set name here

# replSet=setname

# maximum size in megabytes for replication operation log

# oplogSize=1024

# path to a key file storing authentication info for connections

# between replica set members

# specify the path to the key file where authentication information is stored

# keyFile=/path/to/keyfile

Or use the following configuration: (you can test the configuration of the replication set. Note that the port number and the name of the replication set must be the same.)

28001.conf

Bind_ip=192.168.20.144

Port=28001

Logpath=/data/db/mongodb_log/28001.log

Logappend=true

Dbpath=/data/db/mongodb_data28001

ReplSet=imooc

Fork=true

28002.conf

Bind_ip=192.168.20.144

Port=28002

Logpath=/data/db/mongodb_log/28002.log

Logappend=true

Dbpath=/data/db/28002

ReplSet=imooc

Fork=true

28003.conf

Bind_ip=192.168.20.144

Port=28003

Logpath=/data/db/mongodb_log/28003.log

Logappend=true

Dbpath=/data/db/28003

ReplSet=imooc

Fork=true

Specify the port to enable mongo:

Cd / usr/local/mongo/bin

. / mongo 192.168.20.144:28001/admin

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