Dave Naylor

The short answer is no, you won’t lose any content.

As with most things related to a database driven website, it’s always a good policy to backup the database on a regular basis and in particular when you’re making changes. Especially if you have worries or concerns.

Once you’re all backed up, be fearless 🙂

You could try installing the Ultimate Coming Soon plugin. Strip out all the things you don’t need (in the dashboard) and you’d be left with just a chosen image on a page.

Try setting:

request_slowlog_timeout = 5s
slowlog = /var/log/slow.log

in your php-fpm pool config file. It’ll give you so some clues as to why you’re hitting a 502.

Ah. I had a few headaches this week upgrading Nginx. It was due to Nginx’s own cache and the way I was automatically purging it. Your issue seemed similar.

Here’s a useful page with lots of php-fpm advice:

http://myjeeva.com/php-fpm-configuration-101.html

What version of Nginx are you running and are you using Nginx’s own cache?

Use some el-cheapo hosting and put the site on a temporary URL?

Are you able to use FTP to navigate to your hosting account. A client like FileZilla could help with that.