MySQL · December 20, 2023

How to Fix MySQL Error 1095 - SQLSTATE: HY000 (ER_KILL_DENIED_ERROR) You are not owner of thread %lu

How to Fix MySQL Error 1095 - SQLSTATE: HY000 (ER_KILL_DENIED_ERROR) You are not owner of thread %lu

MySQL is a popular open-source relational database management system used by many websites and applications. However, like any software, it can encounter errors that can disrupt its normal operation. One such error is MySQL Error 1095 - SQLSTATE: HY000 (ER_KILL_DENIED_ERROR) with the message "You are not owner of thread %lu". This error typically occurs when a user tries to kill a thread that they do not own. In this article, we will explore the causes of this error and provide solutions to fix it.

Causes of MySQL Error 1095

There are several possible causes for MySQL Error 1095:

  • Insufficient privileges: The user attempting to kill the thread does not have the necessary privileges to do so.
  • Thread ownership: The user is trying to kill a thread that they do not own.
  • Concurrency issues: Multiple users are trying to kill the same thread simultaneously.

Fixing MySQL Error 1095

Here are some solutions to fix MySQL Error 1095:

1. Check User Privileges

Ensure that the user attempting to kill the thread has the necessary privileges. The user should have the PROCESS privilege to be able to kill threads. You can grant this privilege using the following command:

GRANT PROCESS ON *.* TO 'username'@'localhost';

Replace username with the actual username of the user.

2. Verify Thread Ownership

Make sure that the user trying to kill the thread is the owner of the thread. You can check the thread ownership by executing the following query:

SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST WHERE ID = thread_id;

Replace thread_id with the ID of the thread you want to kill. If the user is not the owner, you can either contact the owner or use the KILL command with the appropriate thread ID.

3. Resolve Concurrency Issues

If multiple users are trying to kill the same thread simultaneously, it can result in the "ER_KILL_DENIED_ERROR" error. To resolve this, coordinate with other users and ensure that only one user attempts to kill the thread at a time.

Summary

MySQL Error 1095 - SQLSTATE: HY000 (ER_KILL_DENIED_ERROR) with the message "You are not owner of thread %lu" can occur due to insufficient privileges, incorrect thread ownership, or concurrency issues. To fix this error, check user privileges, verify thread ownership, and resolve any concurrency issues. If you need reliable and high-performance VPS hosting solutions, consider Server.HK. Our VPS hosting services are top-notch and can provide the performance and reliability you need for your MySQL databases.

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