Explore mongodb - mongodb compass installation, configuration and usage introduction | mongodb GUI

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MongoDB Compass yes MongoDB Developed and provided by the official website MongoDB GUI（ Graphical user interface ） Management tools . It can explore data visually 、 Run instant queries in seconds 、 Create databases and manage collections and documents 、 And data exchange CRUD function 、 View and optimize query performance 、 Build geographic query, etc . So that you can index 、 Make more reasonable decisions in terms of document verification . Provide Linux、Mac And Windows edition .

1

Compass Introduce

The following is the official website of MongoDB Compass Introduction to .

1.1

Use built-in schema visualization to understand data

MongoDB Compass Analyze your documents , And through intuitive GUI Show the rich structure within your collection . It allows you to quickly show and explore your patterns , To understand the frequency of data sets 、 Category and field range .

1.2

Instantly understand server status and query performance

Real time server statistics allow you to view key server metrics and database operations . Easily analyze database operations in depth , Know your most active collection .

1.3

Visually view geospatial data 、 Understanding and operation

Click to build a complex query , Then execute the query with one click ,Compass The results will be displayed for you by geographical location , The results will also be displayed as groups JSON file .

1.4

Better CRUD Operation mode makes data interaction easier

Use an intuitive visual editor to modify existing documents more confidently , Or click a few times to complete the insertion 、 Copy or delete documents

1.5

Use visual interpretation plans to understand performance issues

Through easy to understand GUI Understand the operation of the query , Identify and resolve performance issues .

1.6

View utilization and manage indexes

Know the type of your index 、 size 、 Utilization and special properties . One click to add and remove indexes .

1.7

Simpler data verification

Write in the smart editor JSON Schema validation rules , It automatically suggests field names 、BSON Data types and validation keywords . Real time preview of documents that pass and fail validation rules , It is easy to see whether the rule has the expected behavior .

1.8

Through plug-in extension

Compass Plug in framework with API Open form , Users can extend it . Want other functions ？ You can install plug-ins or build your own .

1.9

Aggregation becomes easy

In the intuitive UI Build an aggregation pipeline . The code skeleton and auto fill function facilitate the easy construction phase , The document preview can show whether the operation you need is being performed at this stage . Add and remove phases , Or reorder in the pipeline by dragging and dropping . After completion , Export to native code for use in your application .

2

Compass install

Go to... Through the following address MongoDB Download on Compass, And install ：

https://www.mongodb.com/try/download/compass

At present Windows、Mac、RedHat、Ubuntu The version of is available for download . Here to download Windows Version to install .

download msi Format of the installation file , It can be installed directly .

3

Compass To configure

Use MongoDB Compass front , Need configuration Compass Connection information , To connect MongoDB Access to the database server .

3.1

Prepare before configuration

Conduct MongoDB Compass Before configuration , You need to check the server first mongod.conf And sshd_config Profile modification .

3.1.1. modify mongod.conf The configuration file

In the installation MongoDB Edit on the server mongod.conf The configuration file （MongoDB Please check the installation introduction of 《 First time to know MongoDB - MongoDB Introduction and installation 》）：

sudo vim /etc/mongod.conf

take net.bindIp Parameters from 127.0.0.1（ Only local connections are allowed by default ）, It is amended as follows 0.0.0.0 （ Allow all IP Address connection ）：

chart 3-1-1： modify mongod.conf The configuration file

3.1.2. modify sshd_config The configuration file

In the installation MongoDB Edit on the server sshd_config The configuration file ：

sudo vim /etc/ssh/sshd_config

Add a line at the end of the file , Allow it to pass TCP Connect ：

AllowTcpForwarding yes

chart 3-1-2： modify sshd_config The configuration file

3.1.3. restart ssh

Restart with the following command ssh：

sudo service sshd restart

3.1.4. restart MongoDB service

Restart with the following command MongoDB service ：

sudo systemctl daemon-reload

Check the service status after restart .

3.2

To configure Compass

open MongoDB Compass Applications , Get into Compass After that, the connection interface appears first, as follows （ Connection string mode ）：

chart 3-2-1：MongoDB Compass Initial interface

The format of the connection information string is ：

mongodb://[username:[email protected]]host1[:port1][,...hostN[:portN]][/[defaultauthdb][?options]]

With the author's stand-alone （Standalone） Take the installation mode as an example , The connection address information is （ The default port number is 27017）：

mongodb://hadoop100:27017/?readPreference=primary&appname=MongoDB%20Compass&ssl=false

You can also switch to the connection information configuration mode and input the connection information ：

chart 3-2-2：MongoDB Compass Connection information configuration

After setting up , Click on Connect, You can connect to MongoDB：

chart 3-2-3： see MongoDB database

You can see the installation MongoDB By default, the three databases initially created , The left side shows Database list , The right side is Database The storage size of 、Collections Quantity and Indexes Quantity information .

4

Compass Use

Here are some examples of common operations , Learn how to use MongoDB Compass.

4.1

Create and delete databases

Click on CREATE DATABASE Button , You can create a database , At the same time, a set must be created ：

chart 4-1-1：Compass Create database

Click the trash can button , And enter the database name , You can delete the database ：

chart 4-1-2：Compass Delete database

The operation is very convenient .

4.2

Add and delete collections （ object ）

Click the database name to enter the database , Click on CREATE COLLECTION Button , You can add a set （ object ）：

chart 4-2-1：Compass New set

Click the trash can button , And enter the set name , You can delete the set ：

chart 4-2-2：Compass Delete the collection

Capped Collection For a fixed set , That is, for a fixed size , We can imagine it's like a circular queue , When the assembly space is used up , Then the inserted element will cover the original head element .

4.3

Insert 、 Update and delete documents

Click the set name to enter the set , You can view all document data stored under this collection . There are three ways to view document data ：list、bson、table.

chart 4-3-1：Compass list Display document data in form

chart 4-3-2：Compass bson Display document data in form

chart 4-3-3：Compass table Display document data in form

4.3.1. Inserted into the document

There are two ways to insert document data ： Import from file 、 Enter document data manually .

Click on ADD DATA Under the button Import File, By importing JSON or CSV Insert document data by file ：

chart 4-3-4：Compass Insert document data by importing files

Data file source ：《 How to quickly obtain and analyze the housing price market in your city ？》

Click on ADD DATA Under the button Insert Document, Insert the document by manual input ：

chart 4-3-5：Compass Insert document data by manual input

4.3.2. Update the document

Click the Edit button of each document data record , The document data record can be updated , Including modifying data types 、 Add and delete document elements 、 Modify the key name and value content of the document element ：

chart 4-3-6：Compass Update document data type

chart 4-3-7：Compass Update document data

4.3.3. Delete the document

Click the Edit button of each document data record , You can delete the document data record ：

chart 4-3-8：Compass Delete document data

MongoDB Compass stay CRUD The operation of is very humanized , However, it is not suitable for mass operation .

4.4

Query the document

Documented FILTER Enter the query criteria in the row , Click on FIND Button , You can execute the query operation , You can also export Python、Java And other languages .

for example , The inquiry house type is 3 room 2 hall , The house facing south , stay FILTER Enter the following criteria to query ：

{huxing: "3 room 2 hall  ", chaoxiang: "  south  "}

chart 4-4-1：Compass Query the document

You can find 303 Document data records .

export Python、Java And other languages ：

chart 4-4-2：Compass Export query statements in other languages

You can see , The exported statement is very complete , Directly available .

4.5

Create index

On the collection page Indexes in , You can view the index of the corresponding set , The index "_id_" Is the unique index specified in the system , Not delete .

chart 4-5-1：Compass View the index of the collection

By clicking on CREATE INDEX Button can create an index . Enter index name , And select the key for indexing 、 Index order , You can also configure the type of index 、 Properties, etc ：

chart 4-5-2：Compass Create index

If you check Create unique index, Make sure that the key value of the indexed key has no duplicate value ;Partial filter expression It can be used to set index conditions , That is, the index key will be indexed only if it meets the set conditions , Can be used to constrain non null values , For example, setting the following conditions means that only There are key values positioninfo Index ：

{ "positioninfo": { "$exists": true } }

Partial indexes It can reduce the use of storage space , Improve performance .

4.6

View execution plan

stay MongoDB shell There is explain() function , Used to detect the operation of diagnostic data .Explain Plan Its function is similar , Used to view the execution plan of query statements 、 Evaluate query performance , General application in find() Query function 、 Evaluation index, etc .

chart 4-6-1：Compass View the query statement execution plan

You can use tree or native JSON Format view statement execution order 、 Returns the number of results 、 Time consuming 、 Number of scanned records 、 Execution information such as index usage .

4.7

Monitor resource usage

Click on the home page Performance Tab can be monitored MongoDB Use of resources ：

chart 4-7-1：Compass Monitor resource usage

You can view the operation commands 、 Reading and writing I/O、 network bandwidth 、 Memory usage 、 Resource monitoring information such as hotspot collection .

4.8

Use Mongo Shell

MongoDB Compass Integrated MongoDB Shell, Click... At the bottom of the interface >_MONGOSH You can enter , With the MongoDB Use... In the server mongosh The usage and effect of , Can be written directly MongoDB Statement for database operation .

chart 4-8-1：Compass Use in Mongo Shell

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MongoDB Compass There are other rich functions , You can download and install to use , Experience 、 Explore .

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