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From richev <richard_c_ev...@standardlife.com>
Subject Re: HttpAsyncClient 4.0-alpha3 and timeouts
Date Sat, 26 Nov 2011 23:08:42 GMT

but is there not some way of a client using this api to say, I only want to
wait for x seconds for a completed response? If the response is going to
take more than x seconds, notify me and I'll tell the user that a service is
being unresponsive, free up resources, disconnect from service.

I can't block forever if there is an unresponsive service. This is a
realistic scenario, web services do become unresponsive/slow.


olegk wrote:
> 
> On Sat, 2011-11-26 at 11:12 -0800, richevo wrote:
>> I'm talking about response timeouts. I tried just using HttpCore and that
>> respected the response timeouts for my test. I used the NHttpClient
>> example.
>> It could be an option to just use HttpCore but I was interested in using
>> the
>> higher level connection support.
>> 
>> All I want to do is to be able to configure a response timeout of x
>> seconds,
>> so if the web service takes more than x seconds to respond I get a
>> timeout.
>> So the socket remains connected at all times but there is no response.
>> 
>> I suspect that I'm not explaining myself very well.
>> 
> 
> There is no such thing as a response timeout.
> 
> Socket timeout is a maximum period inactivity between two _consecutive_
> i/o operations. That is, if the socket timeout is set to x milliseconds,
> and the server sends a packet of data every x - 1 milliseconds,
> connection on that socket will never time out.
> 
> Oleg
> 
> 
> 
>> 
>> olegk wrote:
>> > 
>> > On Thu, 2011-11-24 at 15:38 -0800, richev wrote:
>> >> Okay. Can you tell me how I code the client so that it does timeout
>> after
>> >> x
>> >> seconds? I assumed that was what I was doing with the timeout options
>> in
>> >> my
>> >> code that I posted. 
>> >> 
>> > 
>> > Are you talking about connect timeout or socket timeout? If you mean
>> the
>> > latter, most likely your expectation is simply wrong. Please look up a
>> > definition of the socket timeout and what exactly it signifies.  
>> > 
>> > Oleg
>> > 
>> >> 
>> >> olegk wrote:
>> >> > 
>> >> > On Thu, Nov 24, 2011 at 12:42:35PM -0800, richevo wrote:
>> >> >> 
>> >> >> I hope this makes it clear. Apologies for the 4 posts with the
same
>> >> >> question,
>> >> >> don't know what happened!
>> >> >> 
>> >> >> 
>> >> >>
>> >>
>> java.util.logging.Logger.getLogger("org.apache.http.wire").setLevel(java.util.logging.Level.FINEST);
>> >> >>
>> >>
>> java.util.logging.Logger.getLogger("org.apache.http.headers").setLevel(java.util.logging.Level.FINEST);
>> >> >> System.setProperty("org.apache.commons.logging.Log",
>> >> >> "org.apache.commons.logging.impl.SimpleLog");
>> >> >>
>> >>
>> System.setProperty("org.apache.commons.logging.simplelog.showdatetime",
>> >> >> "true");
>> >> >>
>> >>
>> System.setProperty("org.apache.commons.logging.simplelog.log.httpclient.wire",
>> >> >> "debug");
>> >> >>
>> >>
>> System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http",
>> >> >> "debug");
>> >> >>
>> >>
>> System.setProperty("org.apache.commons.logging.simplelog.log.org.apache.http.headers",
>> >> >> "debug");
>> >> >> 
>> >> >> HttpClient setup ->
>> >> >> HttpAsyncClient httpclient = new DefaultHttpAsyncClient();
>> >> >>     	httpclient.getParams()
>> >> >>             .setIntParameter(CoreConnectionPNames.SO_TIMEOUT, 3000)
>> >> >>            
>> .setIntParameter(CoreConnectionPNames.CONNECTION_TIMEOUT,
>> >> >> 3000)
>> >> >>            
>> .setIntParameter(CoreConnectionPNames.SOCKET_BUFFER_SIZE,
>> >> 8 *
>> >> >> 1024)
>> >> >>             .setBooleanParameter(CoreConnectionPNames.TCP_NODELAY,
>> >> true);
>> >> >> 
>> >> >> Wire log->
>> >> >> 
>> >> >> 2011/11/24 20:37:21:885 GMT [DEBUG]
>> >> PoolingAsyncClientConnectionManager -
>> >> >> Connection request: [route:
>> >> HttpRoute[{}->http://localhost:8080]][total
>> >> >> kept
>> >> >> alive: 0; route allocated: 0 of 2; total allocated: 0 of 20]
>> >> >> 2011/11/24 20:37:21:930 GMT [DEBUG]
>> >> PoolingAsyncClientConnectionManager -
>> >> >> Connection leased: [id: 0][route:
>> >> >> HttpRoute[{}->http://localhost:8080]][total kept alive: 0; route
>> >> >> allocated:
>> >> >> 1 of 2; total allocated: 0 of 20]
>> >> >> 2011/11/24 20:37:21:936 GMT [DEBUG] DefaultHttpAsyncClient -
>> >> Connection
>> >> >> request suceeded:
>> >> >> [id:0][route:HttpRoute[{}->http://localhost:8080]][state:null]
>> >> >> 2011/11/24 20:37:21:981 GMT [DEBUG] IOSessionImpl - http-outgoing-0
>> >> >> 127.0.0.1:61717<->127.0.0.1:8080[ACTIVE][rw:]: Event set
[w]
>> >> >> 2011/11/24 20:37:21:982 GMT [DEBUG] HttpAsyncClientProtocolHandler
>> -
>> >> >> http-outgoing-0 [ACTIVE]: Connected
>> >> >> 2011/11/24 20:37:21:984 GMT [DEBUG] HttpAsyncClientProtocolHandler
>> -
>> >> >> http-outgoing-0 [ACTIVE] Request ready
>> >> >> 2011/11/24 20:37:21:987 GMT [DEBUG] RequestAddCookies - CookieSpec
>> >> >> selected:
>> >> >> best-match
>> >> >> 2011/11/24 20:37:22:006 GMT [DEBUG] RequestAuthCache - Auth cache
>> not
>> >> set
>> >> >> in
>> >> >> the context
>> >> >> 2011/11/24 20:37:22:006 GMT [DEBUG] DefaultHttpAsyncClient -
>> Attempt 1
>> >> to
>> >> >> execute request
>> >> >> 2011/11/24 20:37:22:006 GMT [DEBUG] headers - http-outgoing-0 >>
>> GET
>> >> >> /Test2/rest/world HTTP/1.1
>> >> >> 2011/11/24 20:37:22:007 GMT [DEBUG] headers - http-outgoing-0 >>
>> Host:
>> >> >> localhost:8080
>> >> >> 2011/11/24 20:37:22:007 GMT [DEBUG] headers - http-outgoing-0 >>
>> >> >> Connection:
>> >> >> Keep-Alive
>> >> >> 2011/11/24 20:37:22:007 GMT [DEBUG] headers - http-outgoing-0 >>
>> >> >> User-Agent:
>> >> >> Apache-HttpAsyncClient/4.0-alpha3 (java 1.5)
>> >> >> 2011/11/24 20:37:22:009 GMT [DEBUG] IOSessionImpl - http-outgoing-0
>> >> >> 127.0.0.1:61717<->127.0.0.1:8080[ACTIVE][rw:]: Event set
[w]
>> >> >> 2011/11/24 20:37:22:014 GMT [DEBUG] IOSessionImpl - http-outgoing-0
>> >> >> 127.0.0.1:61717<->127.0.0.1:8080[ACTIVE][rw:w]: 138 bytes
written
>> >> >> 2011/11/24 20:37:22:014 GMT [DEBUG] wire - http-outgoing-0 >>
"GET
>> >> >> /Test2/rest/world HTTP/1.1[\r][\n]"
>> >> >> 2011/11/24 20:37:22:014 GMT [DEBUG] wire - http-outgoing-0 >>
>> "Host:
>> >> >> localhost:8080[\r][\n]"
>> >> >> 2011/11/24 20:37:22:014 GMT [DEBUG] wire - http-outgoing-0 >>
>> >> >> "Connection:
>> >> >> Keep-Alive[\r][\n]"
>> >> >> 2011/11/24 20:37:22:015 GMT [DEBUG] wire - http-outgoing-0 >>
>> >> >> "User-Agent:
>> >> >> Apache-HttpAsyncClient/4.0-alpha3 (java 1.5)[\r][\n]"
>> >> >> 2011/11/24 20:37:22:015 GMT [DEBUG] wire - http-outgoing-0 >>
>> >> "[\r][\n]"
>> >> >> 2011/11/24 20:37:22:015 GMT [DEBUG] IOSessionImpl - http-outgoing-0
>> >> >> 127.0.0.1:61717<->127.0.0.1:8080[ACTIVE][r:w]: Event cleared
[w]
>> >> >> 2011/11/24 20:37:22:015 GMT [DEBUG] HttpAsyncClientProtocolHandler
>> -
>> >> >> http-outgoing-0 [ACTIVE] Request ready
>> >> >> 2011/11/24 20:37:46:720 GMT [DEBUG] IOSessionImpl - http-outgoing-0
>> >> >> 127.0.0.1:61717<->127.0.0.1:8080[ACTIVE][r:r]: 439 bytes
read
>> >> >> 2011/11/24 20:37:46:720 GMT [DEBUG] wire - http-outgoing-0 <<
>> >> "HTTP/1.1
>> >> >> 200
>> >> >> OK[\r][\n]"
>> >> >> 2011/11/24 20:37:46:720 GMT [DEBUG] wire - http-outgoing-0 <<
>> "Server:
>> >> >> Apache-Coyote/1.1[\r][\n]"
>> >> >> 2011/11/24 20:37:46:720 GMT [DEBUG] wire - http-outgoing-0 <<
>> >> >> "Content-Type:
>> >> >> application/atom+xml[\r][\n]"
>> >> >> 2011/11/24 20:37:46:721 GMT [DEBUG] wire - http-outgoing-0 <<
>> >> >> "Content-Length: 299[\r][\n]"
>> >> >> 2011/11/24 20:37:46:721 GMT [DEBUG] wire - http-outgoing-0 <<
>> "Date:
>> >> Thu,
>> >> >> 24
>> >> >> Nov 2011 20:37:46 GMT[\r][\n]"
>> >> >> 2011/11/24 20:37:46:721 GMT [DEBUG] wire - http-outgoing-0 <<
>> >> "[\r][\n]"
>> >> >> 2011/11/24 20:37:46:722 GMT [DEBUG] wire - http-outgoing-0 <<
>> "<?xml
>> >> >> version="1.0" encoding="UTF-8" standalone="yes"?><entry
>> >> >> xmlns="http://www.w3.org/2005/Atom"
>> >> >> xmlns:ns2="http://a9.com/-/spec/opensearch/1.1/"
>> >> >>
>> >>
>> xmlns:ns3="http://www.w3.org/1999/xhtml"><id>helloworld:1</id><updated>2011-11-24T20:37:46.708Z</updated><title
>> >> >> type="text">Hello World!</title></entry>"
>> >> >> 2011/11/24 20:37:46:732 GMT [DEBUG] headers - http-outgoing-0 <<
>> >> HTTP/1.1
>> >> >> 200 OK
>> >> >> 2011/11/24 20:37:46:732 GMT [DEBUG] headers - http-outgoing-0 <<
>> >> Server:
>> >> >> Apache-Coyote/1.1
>> >> >> 2011/11/24 20:37:46:732 GMT [DEBUG] headers - http-outgoing-0 <<
>> >> >> Content-Type: application/atom+xml
>> >> >> 2011/11/24 20:37:46:732 GMT [DEBUG] headers - http-outgoing-0 <<
>> >> >> Content-Length: 299
>> >> >> 2011/11/24 20:37:46:732 GMT [DEBUG] headers - http-outgoing-0 <<
>> Date:
>> >> >> Thu,
>> >> >> 24 Nov 2011 20:37:46 GMT
>> >> >> 2011/11/24 20:37:46:737 GMT [DEBUG] HttpAsyncClientProtocolHandler
>> -
>> >> >> http-outgoing-0 [ACTIVE] Response received
>> >> >> 2011/11/24 20:37:46:737 GMT [DEBUG] DefaultHttpAsyncClient -
>> Response:
>> >> >> HTTP/1.1 200 OK
>> >> >> 2011/11/24 20:37:46:742 GMT [DEBUG] HttpAsyncClientProtocolHandler
>> -
>> >> >> http-outgoing-0 [ACTIVE] Input ready [content length: 299; pos:
0;
>> >> >> completed: false]
>> >> >> 2011/11/24 20:37:46:742 GMT [DEBUG] DefaultHttpAsyncClient -
>> Response
>> >> >> fully
>> >> >> read
>> >> >> GET http://localhost:8080/Test2/rest/world HTTP/1.1->HTTP/1.1
200
>> OK
>> >> >> 2011/11/24 20:37:46:749 GMT [DEBUG] DefaultHttpAsyncClient -
>> >> Connection
>> >> >> can
>> >> >> be kept alive indefinitely
>> >> >> 2011/11/24 20:37:46:749 GMT [DEBUG] DefaultHttpAsyncClient -
>> Response
>> >> >> processed
>> >> >> 2011/11/24 20:37:46:750 GMT [DEBUG]
>> >> PoolingAsyncClientConnectionManager -
>> >> >> Connection [id: 0][route: HttpRoute[{}->http://localhost:8080]]
can
>> be
>> >> >> kept
>> >> >> alive indefinitely
>> >> >> 2011/11/24 20:37:46:750 GMT [DEBUG]
>> >> PoolingAsyncClientConnectionManager -
>> >> >> Connection released: [id: 0][route:
>> >> >> HttpRoute[{}->http://localhost:8080]][total kept alive: 1; route
>> >> >> allocated:
>> >> >> 1 of 2; total allocated: 1 of 20]
>> >> >> 2011/11/24 20:37:46:751 GMT [DEBUG]
>> >> PoolingAsyncClientConnectionManager -
>> >> >> Connection manager is shutting down
>> >> >> 2011/11/24 20:37:46:751 GMT [DEBUG] IOSessionImpl - http-outgoing-0
>> >> >> 127.0.0.1:61717<->127.0.0.1:8080[ACTIVE][r:r]: Shutdown
>> >> >> 2011/11/24 20:37:46:753 GMT [DEBUG] IOSessionImpl - http-outgoing-0
>> >> >> 127.0.0.1:61717<->127.0.0.1:8080[CLOSED][]: Shutdown
>> >> >> Done
>> >> >> 2011/11/24 20:37:46:754 GMT [DEBUG] HttpAsyncClientProtocolHandler
>> -
>> >> >> http-outgoing-0 [CLOSED]: Disconnected
>> >> >> 2011/11/24 20:37:46:756 GMT [DEBUG]
>> >> PoolingAsyncClientConnectionManager -
>> >> >> Connection manager shut down
>> >> >> 
>> >> >> 
>> >> > 
>> >> > And what exactly is the problem here? I see nothing wrong here. I
>> see
>> >> no
>> >> > reason why the connection should time out.
>> >> > 
>> >> > Oleg
>> >> > 
>> >> >> 
>> >> >> 
>> >> >> 
>> >> >> 
>> >> >> 	
>> >> >> 
>> >> >> olegk wrote:
>> >> >> > 
>> >> >> > On Wed, Nov 23, 2011 at 03:19:16PM -0800, richevo wrote:
>> >> >> >> 
>> >> >> >> I am using the latest HttpAsync library 4. alpha3
>> >> >> >> 
>> >> >> >> Is there an issue where the timeout for the connection
is not
>> >> >> respected?
>> >> >> >> I
>> >> >> >> have set the timeout to 10 seconds and call a web service
that
>> >> takes a
>> >> >> >> minute to respond. I never experience a timeout. The
>> >> AsyncHttpClient
>> >> >> >> waits
>> >> >> >> forever.
>> >> >> >> 
>> >> >> >> I've configured the timeouts as per the example code in
Async.
>> >> >> >> 
>> >> >> >> Is it obvious what I'm doing wrong?
>> >> >> > 
>> >> >> > Please post a wire / context log of the session.
>> >> >> > 
>> >> >> > Oleg
>> >> >> > 
>> >> >> >
>> >> ---------------------------------------------------------------------
>> >> >> > To unsubscribe, e-mail:
>> httpclient-users-unsubscribe@hc.apache.org
>> >> >> > For additional commands, e-mail:
>> httpclient-users-help@hc.apache.org
>> >> >> > 
>> >> >> > 
>> >> >> > 
>> >> >> 
>> >> >> -- 
>> >> >> View this message in context:
>> >> >>
>> >>
>> http://old.nabble.com/HttpAsyncClient-4.0-alpha3-and-timeouts-tp32874649p32875604.html
>> >> >> Sent from the HttpClient-User mailing list archive at Nabble.com.
>> >> >> 
>> >> >> 
>> >> >>
>> ---------------------------------------------------------------------
>> >> >> To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
>> >> >> For additional commands, e-mail:
>> httpclient-users-help@hc.apache.org
>> >> >> 
>> >> > 
>> >> >
>> ---------------------------------------------------------------------
>> >> > To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
>> >> > For additional commands, e-mail: httpclient-users-help@hc.apache.org
>> >> > 
>> >> > 
>> >> > 
>> >> 
>> > 
>> > 
>> > 
>> > ---------------------------------------------------------------------
>> > To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
>> > For additional commands, e-mail: httpclient-users-help@hc.apache.org
>> > 
>> > 
>> > 
>> 
> 
> 
> 
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> 
> 
> 

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