MySQL 1159: Communication error.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Stuck? Get Expert Help
TensorFlow expert • Under 10 minutes • Starting at $20
Talk Now
What is

MySQL 1159: Communication error.

 ?
  1. Check Network Connectivity: Ensure that the machine you are working from can reach the MySQL server. You can use `ping ` to check the connectivity.



  1. Verify MySQL Server Status: Use `mysqladmin -h -u -p status` to check if the MySQL server is running. Replace ``, `` with actual server IP and user.



  1. Check Firewall Settings: Ensure that no firewall is blocking the communication between your machine and the MySQL server. If you have access, use `sudo ufw status` on the server (for Unix systems) to see if the firewall is active and if the MySQL port (default is 3306) is open.



  1. Examine MySQL Server Logs: If possible, check the MySQL server logs for any related errors. The logs can be found in the MySQL data directory, often located at `/var/log/mysql` or `/var/lib/mysql`. Look for entries around the time the error occurred using `tail -n 100 /var/log/mysql/error.log`.



  1. Increase Connection Timeout: Temporarily increase the `netreadtimeout` and `connect_timeout` values on the client side to see if it resolves the issue. Connect to MySQL and run:


SET GLOBAL netreadtimeout=120;
SET GLOBAL connect_timeout=120;

This increases the timeout values to 120 seconds, adjust the values based on your needs.

  1. Check MySQL Server Load: Use `SHOW PROCESSLIST;` to check if there are too many connections or long-running queries that could be causing the server to be unresponsive.



  1. Verify MySQL User Permissions: Ensure the user has the correct permissions and isn't restricted from connecting from your IP. You can verify this by connecting to MySQL from a different machine or network, if possible.



  1. Restart MySQL Service: If you have the permission and it's safe to do so, try restarting the MySQL service on the server with `sudo systemctl restart mysql` on Linux systems.



These actions are immediate steps you can take to investigate and potentially resolve the error 1159: Communication error in MySQL.

Attached error: 
MySQL 1159: Communication error.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Master 

MySQL

 debugging in Minutes

— Grab the Ultimate Cheatsheet

(Perfect for DevOps & SREs)

Most-used commands
Real-world configs/examples
Handy troubleshooting shortcuts
Your email is safe with us. No spam, ever.

Thank you for your submission

We have sent the cheatsheet on your email!
Oops! Something went wrong while submitting the form.

MySQL

Cheatsheet

(Perfect for DevOps & SREs)

Most-used commands
Your email is safe with us. No spam, ever.

Thank you for your submission

We have sent the cheatsheet on your email!
Oops! Something went wrong while submitting the form.

MORE ISSUES

SOC 2 Type II
certifed
ISO 27001
certified
Deep Sea Tech Inc. — Made with ❤️ in Bangalore & San Francisco 🏢

Doctor Droid