Website loading takes more than 6 minutes with mod_http2

[Jafar Muhammed]

I have enabled mod_http2. I was using mod_mpm_prefork, and after reading Prefork and HTTP2, I switched to mod_mpm_event. Everything is super cool.

Now, my website is taking more than 6 minutes to finish loading. Actually, my website contents are finished loading in a few seconds, like less than 20 seconds. However, I have tawk.to installed on my website, and it seems the extension is having an issue with Switching protocols. And (I guess) due to this behaviour, I can see the loading spinner of the browser in action nearly five to six minutes. After this, the browser seems to give up and finish(? ) the loading.

Another thing I noticed that there would be any random files from my server getting stalled in the request queue and eventually getting failed when the browser stops loading.

I tried to switch mod_mpm_worker with mod_http2 to see if it is an issue with mod_mpm_event and found that, it is probably with mod_http2. Right now, I have disabled mod_http2 and running with mod_mpm_event. As expected, my websites are being served within reasonable seconds.

I don't know if I need to change any configuration to resolve this. I am looking for your input.

 

[cPanelMichael]

However, I have tawk.to installed on my website, and it seems the extension is having an issue with Switching protocols. And (I guess) due to this behaviour, I can see the loading spinner of the browser in action nearly five to six minutes. After this, the browser seems to give up and finish(? ) the loading.

Do you notice any entries in /usr/local/apache/logs/error_log when this happens? Have you checked with the support team for this application to verify there are no compatibility issues with HTTP2?

Thank you.

 

[Jafar Muhammed]

Hi @cPanelMichael, I have this line.

[Thu Aug 03 00:40:23.767568 2017] [access_compat:error] [pid 22779:tid 140028409775872] [client 158.69.63.119:41368] AH01797: client denied by server configuration: /home/threadly/public_html/app/etc/config.php

I saw this from cPanel > Metrics > Errors. Similar errors are logged daily, multiple times.

I have checked the file /home/threadly/public_html/app/etc/config.php and found below details. It is a list of Magento's plugins and extensions.

<?php
return array (
  'modules' =>
  array (
    'module_name' => 1,
  ),
);

I have contacted Tawk.to's Support team on July 29th, no response from them yet.
I have disabled Tawk.to module from Magento's admin panel, and I can see the same issues. Even if I disabled Tawk.to, the site takes 5+mins to load.

I am checking the loading from Google Chrome's incognito mode. I have disabled the
mod_http2, and now the site is finishing loading faster.

 

[cPanelMichael]

AH01797: client denied by server configuration: /home/threadly/public_html/app/etc/config.php

Hello,

What permissions are configured for this file, and it's parent directories? Did you use previously use Mod_Ruid2 when the Prefork MPM was enabled?

Thank you.

 

[Jafar Muhammed]

Hello @cPanelMichael,

Here are the permissions details.

/public_html/app/etc/config.php set to 644
/public_html/app/etc and /public_html/app set to 755

The mod_ruid2 was disabled when I was using mod_mpm_prefork. It is disabled now also.

 

[cPanelMichael]

Hello,

Feel free to open a support ticket using the link in my signature if you'd like us to take a closer look.

Thank you.