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From Jerry Lampi <...@sdsusa.com>
Subject Re: Enabling protocol="org.apache.coyote.http11.Http11NioProtocol" causes tomcat 6.0.36 to load web page elements
Date Wed, 17 Jul 2013 19:30:37 GMT
On 7/17/2013 2:28 PM, Christopher Schultz wrote:
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> Jerry,
>
> On 7/17/13 3:06 PM, Jerry Lampi wrote:
>> Good news.  I previously reported that sendFile was not enabled.
>>
>> As stated below by folks more knowledgeable than I, sendFile is
>> enabled by default.
>>
>> I added this line to my server.xml file Connector:
>> useSendfile="false" and now every page element loads very quickly.
>> Problem solved.
> That's kind of what I was hoping. Honestly, sendFile *should* be
> enabled as it should be more efficient, but something is obviously
> going wrong.
>
>> So it appears that sendFile became broken (at least in my USS
>> implementation) in version 6.0.36 and beyond.
>>
>> Should I open an issue for this?  In 6.0.35, sendFile seemed fine,
>> in 6.0.36 and beyond (including 7.x), it is not fine.
> Are you always using the same JVM version when testing these against
> one another?
Yes.  Same JVM.
I had another idea.  I wonder if tomcat 6.0.35 and below were never 
REALLY asking for sendFile?  That would mean that the sendFile 
implementation on the IBM USS mainframe is faulty, but was not being 
exercised by tomcat until 6.0.36 and beyond.  I find that possible, as 
we have had to debug other issues on that platform.

Jerry
>
> - -chris
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