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HTTP/2 server push

Posted by beatnut 
beatnut
HTTP/2 server push
February 08, 2018 02:50PM
Hi everyone,
According to the roadmap https://trac.nginx.org/nginx/roadmap server push
will show up in a few days. My question is :
How to mitigate problem when we are pushing resources already being in the
cache for example pushed earlier ?
Do i have to make some workaround using cookies or nginx can hadle that kind
of situation?

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,278415,278415#msg-278415

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Ruslan Ermilov
Re: HTTP/2 server push
February 08, 2018 08:50PM
On Thu, Feb 08, 2018 at 08:45:50AM -0500, beatnut wrote:
> Hi everyone,
> According to the roadmap https://trac.nginx.org/nginx/roadmap server push
> will show up in a few days.

It's been committed today and will be available in the next release.

> My question is :
> How to mitigate problem when we are pushing resources already being in the
> cache for example pushed earlier ?

Apache has this mechanism:
http://httpd.apache.org/docs/2.4/mod/mod_http2.html#h2pushdiarysize

But it doesn't mitigate a problem of wasted bandwidth with HTTP/2
push if a client opens a new connection, or a server is restarted.

> Do i have to make some workaround using cookies or nginx can hadle that kind
> of situation?

Happy you now also know that HTTP/2 push is mostly a myth when it
comes to performance improvement. In my opinion, it only has very
limited application.
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beatnut
Re: HTTP/2 server push
February 09, 2018 10:00AM
Thank you for an answer.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,278415,278435#msg-278435

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