MySQL · December 20, 2023

How to Fix MySQL Error 1129 - SQLSTATE: HY000 (ER_HOST_IS_BLOCKED) Host '%s' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'

How to Fix MySQL Error 1129 - SQLSTATE: HY000 (ER_HOST_IS_BLOCKED) Host '%s' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'

MySQL is a popular open-source relational database management system used by many websites and applications. However, sometimes users may encounter errors while working with MySQL. One such error is MySQL Error 1129 - SQLSTATE: HY000 (ER_HOST_IS_BLOCKED) which occurs when the host is blocked due to many connection errors. In this article, we will discuss the causes of this error and provide step-by-step instructions on how to fix it.

Causes of MySQL Error 1129

MySQL Error 1129 occurs when the MySQL server blocks a host due to excessive connection errors. This can happen for several reasons:

  • Incorrect login credentials: If you repeatedly enter incorrect login credentials, the server may block your host to prevent further unauthorized access attempts.
  • Network issues: Unstable network connections or high latency can cause connection errors, leading to the host being blocked.
  • Server overload: If the MySQL server is overloaded with too many simultaneous connections, it may block hosts to maintain stability and prevent further issues.

Fixing MySQL Error 1129

To fix MySQL Error 1129, you can follow these steps:

Step 1: Verify login credentials

Ensure that you are using the correct login credentials to connect to the MySQL server. Double-check the username and password to avoid repeated failed login attempts.

Step 2: Check network connectivity

Verify that your network connection is stable and there are no issues with high latency or packet loss. You can try pinging the MySQL server to check the network connectivity.

Step 3: Flush hosts

If your host is blocked, you can unblock it by using the 'mysqladmin flush-hosts' command. This command clears the list of blocked hosts and allows your host to connect to the MySQL server again.

To flush hosts, follow these steps:

  1. Open a command prompt or terminal.
  2. Enter the following command:

mysqladmin flush-hosts

This command will flush the hosts and unblock your host. You should now be able to connect to the MySQL server without encountering Error 1129.

Summary

MySQL Error 1129 - SQLSTATE: HY000 (ER_HOST_IS_BLOCKED) occurs when a host is blocked due to many connection errors. This error can be caused by incorrect login credentials, network issues, or server overload. To fix this error, you should verify your login credentials, check network connectivity, and use the 'mysqladmin flush-hosts' command to unblock the host.

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