Hi everyone.
We are having a super weird problem with a clients site. In short: Every time he publishes a post, a 500 internal server error happens that kills the site for 5 minutes or so.
This happens every single time a post is published and ONLY when publishing post - it is fine when editing posts, making drafts, publishing new pages - but publishing a post triggers ... something that does this.
So far I have
1. Installed a fresh new WP admin and WP includes folders
2. Moved the entire site to a new server - same problem
3. Created a new htaccess - no difference
4. Disconnected jetpack and reconnected
The site runs X-theme with only 9 active plugins, we have exact duplicates of this site setup which runs just fine! Only happens on this site!
EDIT: Forgot to mention - there is not a single error to be seen logged anywhere on the webserver! But it does appear that I/O and Memory usage goes to max for a short while after publishing.
Anyone encounter anything like this ?
Regards,
Flemming