redis bug?

woofmang · December 30, 2016 at 3:33 AM

I'm using WoltLab Suite 3.0.0 RC 2 on a CentOS 7.3 server (under WHM 60), running Apache/2.4.23 (cPanel) and PHP 5.5.38.

I installed redis from source, then installed the redis 3.1.0 PECL extension through WHM, restarted apache, and chose "use redis" under Confiiguration > General > Cache. When I run redis-cli monitor through ssh and navigate around the site, I can see that redis is being accessed.

But when I click on the "cache" link under "Management" in the ACP, I don't go to the cache-list page (/acp/index.php?cache-list/) any more like I used to when I was using the filesystem as the cache provider; now I get redirected to the front page of the site instead.

I posted to the help forum to ask if this was normal behavior, and jens1o responded and said it was not. He suggested that I try clearing my browser's cache and manually deleting the cache on the server, which I did (as to the filesystem cache: I left the cache folder in web root, but deleted all files except the .htaccess file). He suggested that if that didn't fix the issue, I should submit a bug report.

Is this something I should be concerned about? The site seems to function as it should, but I don't know how to refresh the cache (or if I even need to do so; I've never used redis before).

**Alexander Ebert** · December 30, 2016 at 11:31 AM Official Post

This doesn't sound like an issue with redis, because the cache provider has no influence over the page navigation.

Would you be so kindly to provide me access to the admin panel of the affected instance? Please send any credentials (including the site url) by email to ebert@woltlab.com

**Alexander Ebert** · January 2, 2017 at 4:16 PM Official Post

The issue is caused by a faulty redis extension, yielding an error that is intercepted by the webserver and passed back to PHP, but this time with falsified request headers. The bad request data then causes the software to redirect to display the landing page as none of the request data was suitable to determine the proper page.

woofmang · January 2, 2017 at 11:53 PM

Thanks very much for your help with this issue, Alexander - I appreciate it!

redis bug?

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