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From Rainer Jung <>
Subject Re: AJP connector question
Date Wed, 09 Apr 2008 20:42:19 GMT
darinpope schrieb:
> It's an (un)documented attribute called "packetSize" for the AJP connector:
> The packetSize attribute is only good for 5.5.20+ and 6.0.2+.
> However, I'm having issues with this myself. I've set my max_packet_size in
> the worker and the packetSize in the AJP connector to the same values, but
> when I look at the mod_jk.log, it appears that it is still using 8192:
> received from ajp13 pos=0 len=8188 max=32768
> If anyone has an answer to this issue, I'd appreciate an answer.
> Darin
> obalas wrote:
>> Hello, everybody,
>> Can anyone help me out with this problem, i need to increase the header
>> size for the AJP connector to at least 16K, and I noticed from the
>> documentation that, unlike the standard connector on port 8080, the AJP
>> connector does not recognize the maxHttpHeaderSize attribute. 
>> Does anybody know a workaround solution for this?
>> Thanks in advance,
>> Ovi

The posted message comes from an AJP packet send by Tomcat back to 
mod_jk. The original motivation for increasing the AJP packet size was 
handling long HTTP headers (like when the client uses an SSL 
certificate, this was mostly broken with the default (KB size). It seems 
that Tomcat doesn't use the bigger size in its response packets, which I 
think is fine, because we don't expect a huge performance benefit from 
bigger packets/buffers (maybe even a negative result).



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