Question

Multi Node Mysql cluster setup, API node mysqld not starting.

I am following below link for Multi Node MySQL cluster setup. https://www.digitalocean.com/community/tutorials/how-to-create-a-multi-node-mysql-cluster-on-ubuntu-16-04#

Almost all steps goes well till i start the mysqld on Manager Node.

After running -: sudo systemctl start mysqld Error massage - : Job for mysqld.service failed because the control process exited with error code. See “systemctl status mysqld.service” and “journalctl -xe” for details.

Don’t know what wrong i m doing followed exactly same steps given in document.

Note - I am doing this setup on AWS and not on DigitalOcean


Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Want to learn more? Join the DigitalOcean Community!

Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.

Answering my own question, I found the solution. Note -: While creating the “mysql” user and group on “manager.mysql.cluster” we are missing to do following, which is stopping Mysqld to start.

  1. sudo groupadd mysql
  2. sudo useradd -r -g mysql -s /bin/false mysql
  3. sudo mkdir -p /data/mysql
  4. sudo mkdir /var/lib/mysql-files
  5. sudo chown mysql:mysql /var/lib/mysql-files
  6. sudo chown mysql:mysql /data/mysql

Rest all the steps are perfectly correct. Now everything is working as expected.

But i want to test actual cluster benefit like taking node-1 down and checking if the web site or application is still working and again starting the node-1 and it should have all the database sync on it.

Kindly shade some light how can we do this practice before using it in real setup.

Thanks Pushkar

“See “systemctl status mysqld.service” and “journalctl -xe” for details.”