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From André Warnier ...@ice-sa.com>
Subject Re: asking advice for tomcat 7 config
Date Wed, 17 Oct 2012 10:02:13 GMT
Mark Thomas wrote:
> On 17/10/2012 10:49, André Warnier wrote:
>> 1) So it means that if a client connects to the server, but does not
>> send any request line for a while on that connection, the server will
>> allocate a thread to serve the request; this thread will wait up to 20 s
>> (on HTTP) or 60 s. (on HTTPS), before timing out and returning to the
>> pool of available threads.
>> Of course only a malicious client would do that..
> 
> Nope. This is the NIO connector. The request line is read using
> non-blocking IO. The (simulated) blocking IO only starts once the first
> header is received and continues until the entire request is received.
> It then goes back to non-blocking for the next request line.
> 
> 
>> 2) it also means that a perfectly non-malicious client can connect to
>> the server, and send a first request on the connection; the server will
>> allocate a thread to handle this request; and then, if the same client
>> has no more requests to send for a while, this thread will nevertheless
>> remain waiting on this connection for 20 s. (HTTP) or 60 s. (HTTPS),
>> just in case the client /would/ send another request on it.
>> During this time, the thread is unavailable to process other client
>> requests.
> 
> Again, nope. The thread is released between the requests.
> 

Sorry, I stand corrected, I missed the NIO part.

For the record, is the above correct for the standard BIO connector  (and in part for the

APR connector) ?


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