Re: [jetty-users] Keep-alive config

[anurag gupta]

Thanks Chris.
I had sent those mails but didn't see a reply or the sent mail in my gmail
account.

Sorry for spamming the user list.

On Mon, Aug 7, 2017 at 1:27 AM, Chris Walker  wrote:

> Anurag,
>
> Both Greg and Joakim have provided answers to this on the mailing list
> already:
>
> From Greg: https://dev.eclipse.org/mhonarc/lists/jetty-users/
> msg07962.html
> 
> From Joakim: https://dev.eclipse.org/mhonarc/lists/jetty-users/msg07976.
> html
>
> Specifically, to quote Joakim:
>
> The idea of a server side configuration for connection "keep-alive" really
>> doesn't makes sense in any version of HTTP ... with a server that honors
>> the HTTP spec properly.
>> If the switch exists to enable "keep-alive", then it has no meaning in
>> HTTP/1.1 and HTTP/2 (this is default behavior). To enable "keep-alive" in
>> HTTP/1.0 requires the user-agent to send the "Connection: keep-alive"
>> header (server cannot force this).
>> If the switch exists to disable "keep-alive", then it has no need in
>> HTTP/1.1 (just add the "Connection: close" header to your responses, in a
>> filter or rewrite rule if you want). HTTP/2 cannot disable it, and HTTP/1.0
>> is already behaving the way you want.
>> So, in short, if you want persistent connections, use HTTP/1.1 (or
>> HTTP/2), don't specify "Connection: close" (on client request headers or
>> server response headers), and don't do anything that violates the HTTP spec
>> (as that will be an error that closes the connection).
>
>
> "Keep Alive" is not something Jetty-specific and there are no controls to
> modify the behavior that are Jetty-specific. HTTP/2 Connections are
> persistent by default  as
> are ones in HTTP 1.1 .
>
> Best,
> Chris
>
> On Sun, Aug 6, 2017 at 3:06 PM, anurag gupta 
> wrote:
>
>> Are there any tweakable parameters for Keep-Alive in jetty ?
>>
>> --
>> Regards
>> Anurag
>>
>> ___
>> jetty-users mailing list
>> jetty-users@eclipse.org
>> To change your delivery options, retrieve your password, or unsubscribe
>> from this list, visit
>> https://dev.eclipse.org/mailman/listinfo/jetty-users
>>
>
>
> ___
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>



-- 
Regards
Anurag
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Re: [jetty-users] Keep-alive config

[Chris Walker]

Anurag,

Both Greg and Joakim have provided answers to this on the mailing list
already:

>From Greg: https://dev.eclipse.org/mhonarc/lists/jetty-users/msg07962.html

>From Joakim: https://dev.eclipse.org/mhonarc/lists/jetty-users/msg07976.html


Specifically, to quote Joakim:

The idea of a server side configuration for connection "keep-alive" really
> doesn't makes sense in any version of HTTP ... with a server that honors
> the HTTP spec properly.
> If the switch exists to enable "keep-alive", then it has no meaning in
> HTTP/1.1 and HTTP/2 (this is default behavior). To enable "keep-alive" in
> HTTP/1.0 requires the user-agent to send the "Connection: keep-alive"
> header (server cannot force this).
> If the switch exists to disable "keep-alive", then it has no need in
> HTTP/1.1 (just add the "Connection: close" header to your responses, in a
> filter or rewrite rule if you want). HTTP/2 cannot disable it, and HTTP/1.0
> is already behaving the way you want.
> So, in short, if you want persistent connections, use HTTP/1.1 (or
> HTTP/2), don't specify "Connection: close" (on client request headers or
> server response headers), and don't do anything that violates the HTTP spec
> (as that will be an error that closes the connection).


"Keep Alive" is not something Jetty-specific and there are no controls to
modify the behavior that are Jetty-specific. HTTP/2 Connections are
persistent by default  as
are ones in HTTP 1.1 .

Best,
Chris

On Sun, Aug 6, 2017 at 3:06 PM, anurag gupta  wrote:

> Are there any tweakable parameters for Keep-Alive in jetty ?
>
> --
> Regards
> Anurag
>
> ___
> jetty-users mailing list
> jetty-users@eclipse.org
> To change your delivery options, retrieve your password, or unsubscribe
> from this list, visit
> https://dev.eclipse.org/mailman/listinfo/jetty-users
>
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