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Why Does MySQL Throw 'Error Writing File' (Errcode 28) and How Do I Fix It?

Mary-Kate Olsen
Mary-Kate OlsenOriginal
2024-11-16 14:25:03592browse

Why Does MySQL Throw

MySQL Writing File Error (Errcode 28): Troubleshooting and Resolution

In a recent query execution, one of our web applications encountered the following error:

Query3 failed: Error writing file '/tmp/MY1fnqpm' (Errcode: 28) ... INSERT MailList...

This error indicates a problem with writing a file to the server's temporary directory. To determine the root cause, we can use the perror command:

$ perror 28
OS error code  28:  No space left on device

Based on the output, we can conclude that the issue is most likely due to a lack of disk space on the server. The temporary directory where MySQL tries to write the file has reached its storage capacity.

Solution:

To resolve this issue, we need to free up disk space on the server. We can do this by clearing out unnecessary files, optimizing database tables, or increasing the available disk space. Once we have freed up sufficient space, MySQL should be able to write the file without encountering the Errcode 28 error.

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