Please whitelist cPanel in your adblocker so that you’re able to see our version release promotions, thanks!

The Community Forums

Interact with an entire community of cPanel & WHM users!

The mpm module is not supported by mod_http2

Discussion in 'EasyApache' started by Konstantinos Adam, Jul 29, 2017.

  1. Konstantinos Adam

    Konstantinos Adam Registered

    Nov 30, 2016
    Likes Received:
    Trophy Points:
    cPanel Access Level:
    Website Owner
    Hello everyone.

    I am currently experiencing trouble using http2 protocol.

    I already installed mod_http2 via WHM -> EasyApache4 and the apache recompiled successfully.

    My hostings using php7.1 and in all of them I have installed AutoSSL.

    I see in apache error logs (/usr/local/apache/logs/error_log), the following:

    [Sat Jul 29 18:06:16.974193 2017] [http2:info] [pid 899] AH03090: mod_http2 (v1.10.7, feats=CHPRIO+SHA256+INVHD+DWINS, nghttp2 1.20.0), initializing...
    [Sat Jul 29 18:06:16.974215 2017] [http2:warn] [pid 899] AH10034: The mpm module (prefork.c) is not supported by mod_http2. The mpm determines how things are processed in your server. HTTP/2 has more demands in this regard and the currently selected mpm will just not do. This is an advisory warning. Your server will continue to work, but the HTTP/2 protocol will be inactive.

    Also, in access logs, I see this:

    [29/Jul/2017:19:53:50 +0300] "GET / HTTP/1.1" 200 621 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0"

    So my requests are using http1.1 protocol instead of http2.

    I have disable antivirus and network protection, but with no luck.

    I have tried accessing my websites using different computers, different networks (just in case I had a faulty browser or some kind of restriction), but with no luck.

    Can anyone please help on this?

    Thank you in advance.
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager Staff Member

    Apr 11, 2011
    Likes Received:
    Trophy Points:
    cPanel Access Level:
    Root Administrator

    This is discussed on the following thread:

    Prefork and HTTP2

    Thank you.
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice