MySQL: Incorrect key file for table '/tmp/#sql_185e_0.MYI'; try to repair it

Incorrect key file for table '/tmp/#sql_185e_0.MYI'; try to repair it

What does this error mean?

"Incorrect key file for table '/tmp/#sql_185e_0.MYI'; try to repair it"

I'm inserting 400k records in a table by 25k per batch using PHP in command line. If I inserted only 1k records then it will not produce the MySQL error.

Does the error mean that my server has no more disk space?

Th开发者_Python百科anks.

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According to google - this error often related to not enough space for the drive your temporary directory is located at.