MongoDB Cluster Replication and Fail-over - ubuntu. Step by step guideline
MongoDB Enterprise Replication and Failover cluster Step by step
Hello, welcome to my channel. In this video, I tried to show how to implement "MongoDB Master/Slave replication" from the scratch and addition to this, also showed how fail over managed.
The steps are in details and in sequence to deploy a successful case. How to join the ubuntu server in windows AD. please check the other video for detail.
My main target is to deploy such environment so I can use these mongoDB server for asp.net core web app application log management.
Starting with 3 vm ubuntu
1. mongo-a 192.168.1.126
2. mongo-b 192.168.1.127
3. mongo-c 192.168.1.128
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Step sequences:
Things to do:
1. mongo-a :- mongo-a.royonlab.local - IP: 192.168.1.126
2. mongo-b :- mongo-b.royonlab.local - IP: 192.168.1.127
3. mongo-c :- mongo-c.royonlab.local - IP: 192.168.1.128 - previous vdo (join ubuntu with windows AD...)
Things to do:
Steps:
1. deploy mongo db on each server
a. server mongo-a:
1. sudo apt-get update
2. sudo apt-get upgrade
3. deploy Mongo DB Enterprise
a. need to add Mongo DB Enterprise package list
1. sudo wget -qO - https://www.mongodb.org/static/pgp/se... | sudo apt-key add -
2. echo "deb [ arch=amd64,arm64,s390x ] http://repo.mongodb.com/apt/ubuntu bionic/mongodb-enterprise/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-enterprise.list
(ref url: https://docs.mongodb.com/manual/tutor...)
b. update repo
1. sudo apt-get update
c. install Mongo DB Enterprise
1. sudo apt-get install mongodb-enterprise
4. sudo systemctl enable mongod
5. sudo systemctl daemon-reload
6. sudo service mongod start
7. sudo service mongod status netstat -plntu
8. check from client (using robo3T studio trail edition)
(ref url: https://robomongo.org/)
#### now editing the conf file for 1. ip binding, 2, security (optional, but we will), 3. replica set
9. Edit config for IP binding
a. sudo nano /etc/mongod.conf
1. IP set to 192.168.1.126
b. sudo service mongod restart
c. client check OK.
10. Security
1. before we enable the security, will create a user with root privil on the "admin"
a. connect to mongo-a: mongo --host mongo-a.royonlab.local
b. use admin
c. db.createUser( {user: "mongoadmin",pwd: "Asdf1234",roles: ( "root" )}); --OK
2. Create security keyfile on mongo-a (taking this as primary server)
a. sudo openssl rand -base64 741 keyfile
b. sudo mkdir -p /opt/mongodb
c. sudo cp keyfile /opt/mongodb
d. sudo cp keyfile Document/ (to share on the other vm)
e. sudo chown mongodb:mongodb /opt/mongodb/keyfile
f. sudo chmod 0600 /opt/mongodb/keyfile
g. sudo chmod 777 Document/keyfile (so we can share it to the other mongo server)
3. edit mongo config enable security
a. sudo nano /etc/mongod.conf
b. edit
1. security:
2. keyFile: /opt/mongodb/keyfile
3. authorization: enabled
c. sudo service mongod restart
d. client check with authentication (mongoadmin/Asdf1234) --OK
b. server mongo-b:
c. server mongo-c:
1. follow the steps from 1 to 9
2. will not create the user in these two server
d. Start Replica config
1. mongo-a: edit mongo config
a. sudo nano /etc/mongod.conf
1. replication: replSetName: mongodb-rs
2. mongo-b: edit mongo config
a. sudo nano /etc/mongod.conf
1. replication: replSetName: mongodb-rs
3. mongo-c: edit mongo config
a. sudo nano /etc/mongod.conf
1. replication: replSetName: mongodb-rs
4. add the replica member to mongo-a
a. rs.initialise()
b. rs.add("mongo-b.royonlab.local:27017")
c. rs.add("mongo-c.royonlab.local:27017")
5. Replication test --OK
6. Fail Over Test
a. when mongo-a is down, mongo-b has the primary status and mongo-c is seconday
b. when mongo-b is down, mongo-a has the primary status and mongo-c is seconday
You can download the config files @
Github: https://github.com/mroyon/Mongodb_Clu...
upcoming video: ASP.Net Core Web App application log management using mongodb and serilog.
Software used:
1. VM workstation 14 (https://www.vmware.com/products/works...)
2. Bandicam: (https://www.bandicam.com/)
3. Ubuntu 18.04 (https://releases.ubuntu.com/18.04/)
4. Microsoft Server 2016 (https://www.microsoft.com/en-us/evalc...)
5. Robo Mongo: https://robomongo.org/
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