On 22/02/2012 18:41, Costin Manolache wrote:
> On Wed, Feb 22, 2012 at 10:27 AM, Konstantin Kolinko <knst.koli...@gmail.com
>> wrote:
> 
>> 2012/2/22 Costin Manolache <cos...@gmail.com>:
>>> On Wed, Feb 22, 2012 at 8:57 AM, Mark Thomas <ma...@apache.org> wrote:
>>>
>>>> On 22/02/2012 16:51, Costin Manolache wrote:
>>>>> First part submitted. For the second: what is the process for adding a
>>>>> dependency ?
>>>>
>>>> Why do you need the dependency?
>>>>
>>>
>>> Spdy requires header compression - with a pre-defined dictionary (
>>> containing header names and common values ). It also requires 'flush' - a
>>> single compression context is used for all headers in the stream. AFAIK
>>> this is not possible with the jdk compress library.
>>>
>>> That's one of the ways spdy gets its speed - it is not optional in
>>> chrome/firefox.
>>>
>>
>> 1. AJP/1.3 protocol has dictionary for header names.
>> 2. In Deflater class explicit flush operation was added in Java 1.7.
>>
> 
> I think requiring Java1.7 is too much. Most prod servers are on 1.6.
> 
> Would making it an 'optional' dependency work ( i.e. skip compiling the
> required
> classes / use class for name ) ? I can add an option to use 1.7 Deflater if
> available.

If we are talking about Tomcat 8 then that is very likely to require
Java 1.7 anyway. 1.6 is close to EOL.

Are you considering back-porting this to 7.0.x?

There is also a workaround already in 7.0.x for flushing compressed streams.

Mark

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