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From Stefan Magnus Landrø <stefan.lan...@gmail.com>
Subject Re: intermittent org.apache.http.ConnectionClosedException:
Date Fri, 21 Aug 2015 04:55:05 GMT


Sendt fra min iPhone

> Den 21. aug. 2015 kl. 00.39 skrev Shushant Arora <shushantarora09@gmail.com>:
> 
> Thanks !
> 
> shall the value of tcp_fin_timeout be reduced(from default 60 to 30) in
> heavy concurrent requests?

Heavy? What do you mean?

> Does it have any side affect?

Seriously?

> 
> On Fri, Aug 21, 2015 at 2:12 AM, Stefan Magnus Landrø <
> stefan.landro@gmail.com> wrote:
> 
>> 
>> 
>> Sendt fra min iPhone
>> 
>>>> Den 20. aug. 2015 kl. 21.06 skrev Shushant Arora <
>>> shushantarora09@gmail.com>:
>>> 
>>> A doubt regarding async client - does it sends the request on same
>>> connection before waiting for repose of previous request on same
>> connection
>> 
>> No request multiplexing in http 1.1
>> 
>>> ? Or it will reuse the connection only when first request's response has
>>> arrived or request timeouts ?
>>> 
>>> Since I doubt connection close is not  coming because of server rather
>>> client machine tcp socket connections limit - Same http client with same
>>> pool size to same same server is working fine but giving connection close
>>> exception on another machine.
>>> 
>>> 
>>> When I saw the value of sysctl net.ipv4.ip_local_port_range
>>> On machine where exceptions are coming its
>>> net.ipv4.ip_local_port_range = 32768 61000
>>> but on another machibe its net.ipv4.ip_local_port_range = 1024     65500
>>> 
>>>> On Thu, Aug 20, 2015 at 8:40 PM, Oleg Kalnichevski <olegk@apache.org>
>> wrote:
>>>> 
>>>>> On Thu, 2015-08-20 at 20:31 +0530, Shushant Arora wrote:
>>>>> but its failing my job .Is there any eviction policy I should be
>> handling
>>>>> or its automatically taken care of evicting the closed connections.
>>>> 
>>>> You have not been listening, have you? The server closes the connection
>>>> on its end _prematurely_.
>>>> 
>>>> Oleg
>>>> 
>>>>>> On Thu, Aug 20, 2015 at 8:02 PM, Oleg Kalnichevski <olegk@apache.org>
>>>>> wrote:
>>>>> 
>>>>>>> On Thu, 2015-08-20 at 20:00 +0530, Shushant Arora wrote:
>>>>>>> Unplugging is not possible.
>>>>>>> 
>>>>>>> How to capture the exception in code and detect if a connection
is
>>>>>> closed -
>>>>>>> don't use it in further requests and create new one in pool (set
to
>>>> max
>>>>>>> connnection pool)?
>>>>>> 
>>>>>> HttpClient manages persistent connections internally and automatically
>>>>>> discards connections that cannot be re-used.
>>>>>> 
>>>>>> Oleg
>>>>>> 
>>>>>> 
>>>>>>> On Thu, Aug 20, 2015 at 7:55 PM, Oleg Kalnichevski <olegk@apache.org
>>>>> 
>>>>>> wrote:
>>>>>>> 
>>>>>>>>> On Thu, 2015-08-20 at 19:55 +0530, Shushant Arora wrote:
>>>>>>>>> how to avoid this exception - how to handle this.
>>>>>>>> 
>>>>>>>> Unplugging your computer from the network will reliably eliminate
>>>> the
>>>>>>>> problem.
>>>>>>>> 
>>>>>>>> Oleg
>>>>>>>> 
>>>>>>>>> On Thu, Aug 20, 2015 at 7:45 PM, Oleg Kalnichevski <
>>>> olegk@apache.org
>>>>>>> 
>>>>>>>> wrote:
>>>>>>>>> 
>>>>>>>>>>> On Thu, 2015-08-20 at 19:43 +0530, Shushant Arora
wrote:
>>>>>>>>>>> Hi
>>>>>>>>>>> 
>>>>>>>>>>> I am using HttpAsyncClients and
>>>>>> PoolingNHttpClientConnectionManager .
>>>>>>>>>>> Getting below exception when I increase no of
http clients on
>>>>>>>> machine.
>>>>>>>>>> What
>>>>>>>>>>> could be the reason and solution for this.
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> org.apache.http.ConnectionClosedException: Connection
closed
>>>>>>>>>>>       at
>> org.apache.http.nio.protocol.HttpAsyncRequestExecutor.endOfInput(HttpAsyncRequestExecutor.java:321)
>>>>>>>>>>>       at
>>>>>>>>>> 
>>>>>>>>>> The opposite endpoint closed the connection on its
end without
>>>>>>>> correctly
>>>>>>>>>> completing the message.
>>>>>>>>>> 
>>>>>>>>>> Oleg
>> org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:263)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:81)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:39)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:116)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:164)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:339)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:317)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:278)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:106)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:590)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.SessionInputBufferImpl.fill(SessionInputBufferImpl.java:206)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.codecs.AbstractMessageParser.fillBuffer(AbstractMessageParser.java:138)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:243)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:81)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:39)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:116)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:164)
>>>>>>>>>>>       at
>> org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:3
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