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From Filip Hanik - Dev Lists <devli...@hanik.com>
Subject Re: Tomcat maxThreads
Date Mon, 24 Sep 2007 20:51:39 GMT
In Tomcat 6 we have the Comet servlet, you would have to use 6.0.x 
trunk, since there is a connection reuse bug in 6.0.14


Filip


Mike Crawford wrote:
> Hi Filip,
>
> The reason I want to use more threads is because of the nature of our AJAX
> client.  'Sleeping' threads on the server seems like a viable option
> compared to polling, and therefore I'm wondering how many threads to use.
> Other options include Jetty 6 'Continuation' or equivalents -
> http://blogs.webtide.com/gregw/2006/07/25/1153845234453.html to handle this
> problem.  I'd prefer to stick with Tomcat if it is scalable with AJAX
> clients that require a lot of talk between client-server.
>
> Regards,
>
> Mike
>
>
>
> On 9/24/07, Filip Hanik - Dev Lists <devlists@hanik.com> wrote:
>   
>> Threads in hundreds, or lower one thousand is ok, if you need more,
>> question yourself :)
>> ie, if you need more concurrency, simply turn of keep alives.
>>
>> Having too many threads will do the following
>>
>> 1. Eat up a good chunk of memory
>> 2. Your system will spend too much time context switching
>>
>> Filip
>>
>> Mike Crawford wrote:
>>     
>>> Hi,
>>>
>>> I'd like to know if there are any gotchas from increasing maxThreads
>>>       
>> well
>>     
>>> beyond the standard 150.  For instance, on a new Dell 1950 dual-core
>>>       
>> with
>>     
>>> 4GB RAM, why not try 300 or even thousands of threads?  I will be
>>>       
>> putting
>>     
>>> Lighty or Apache in front of Tomcat, which is also a potential
>>>       
>> bottleneck.
>>     
>>> Thanks for your time,
>>>
>>> Mike Crawford
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
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>>>       
>> 9/24/2007 11:27 AM
>>     
>> ---------------------------------------------------------------------
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>>     
>
>   
> ------------------------------------------------------------------------
>
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> Version: 7.5.488 / Virus Database: 269.13.30/1027 - Release Date: 9/24/2007 11:27 AM
>   


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