MySQL/Writing file error (Errcode 28)

Question

I have the following error with one of our web applications -

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


        

Answer 1

We have experienced similar issue, and the problem was MySQL used /tmp directory for its needs (it's default configuration). And /tmp was located on its own partition, that had too few space for big MySQL requests.

For more details take a look for this answer: https://stackoverflow.com/a/3716778/994302