Can't create/write to file '/tmp/#sql_887d_0.MYD' (Errcode: 17)

lsof |grep "#sql_887d_0.MYD"

如果没有被占用就可以删掉 。

https://wordpress.org/support/topic/cant-createwrite-to-file-error

Hello, just today I saw this kind of error on every page on my blog.

WordPress database error: [Can't create/write to file '/tmp/#sql_7719_0.MYD' (Errcode: 17)]
SELECT DISTINCT * FROM wp_posts WHERE 1=1 AND post_date_gmt <=
'2006-05-03 12:54:59' AND (post_status = "publish") AND post_status !=
"attachment" GROUP BY wp_posts.ID ORDER BY post_date DESC LIMIT 0, 7

Then I found out that the file #sql_7719_0.MYD already exist in tmp
folder. The error gone after I deleted the #sql_7719_0.MYD file.

I dont understand why the #sql_7719_0.MYD was already there, does
anyone have any idea to prevent this kind of problem so it wont happen
again in the future?

Thanks,
zefefre