Mailing-List: contact users-help@camel.apache.org; run by ezmlm
Precedence: bulk
Reply-To: users@camel.apache.org
From: Ioannis Mavroukakis <imavroukakis@gmail.com>
Content-Type: text/plain;
	charset=us-ascii
Content-Transfer-Encoding: quoted-printable
Mime-Version: 1.0 (1.0)
Subject: Re: Calling external rest service multiple times in a loop
Message-Id: <A5134B8E-F055-4D07-BF27-048D01723CA0@gmail.com>
Date: Sat, 9 Apr 2016 17:45:56 +0100
References: 
 <CAFQ-E-SV0kdkGu6WZNB32ZzSkR0TaQzmMWDtm23nDJ6R7KCz5w@mail.gmail.com>
 <E222680D-5AA6-43C2-ACD3-F3426B5C24F0@gmail.com>
 <CAFQ-E-Qo_0gVu8kZjJaTiiF+O2uEVwbtANCYLk1VPZwu+s8kXw@mail.gmail.com>
In-Reply-To: 
 <CAFQ-E-Qo_0gVu8kZjJaTiiF+O2uEVwbtANCYLk1VPZwu+s8kXw@mail.gmail.com>
To: users@camel.apache.org

Yes, but curl is hardly a yardstick to measure. For one, you're testing sequ=
entially with curl, which means you close your connection before starting th=
e next one. If we consider a server limit, bear in mind that http4 in Camel u=
ses keep-alive. You can control that using the connectionTimeToLive paramete=
r.=20

> On 9 Apr 2016, at 17:18, rajan agarwal <rajanagarwal87@gmail.com> wrote:
>=20
> Hi Loannis,
>=20
>> On Apr 9, 2016 20:18, "Ioannis Mavroukakis" <imavroukakis@gmail.com> wrot=
e:
>>=20
>> You're getting a 400 back, but you're not giving us a whole lot to go on
> :-).
> Its all I am getting :)
>>=20
>> Is there a limit set server side perhaps? Can you consistently sustain 39=

> iterations?
> Yes It goes up to 41. I don't think there is a server side limit. I create=
d
> a shell script to test that. I fire up to 100 using curl in the shell
> script and it works great without a sweat!
>>=20
>>> On 9 Apr 2016, at 15:22, rajan agarwal <rajanagarwal87@gmail.com> wrote:=

>>>=20
>>> Hi All,
>>>=20
>>> I am facing a issue when i try to call a external webservice in a loop.
> It
>>> runs fine if the loop runs for upto 40 iterations but begins failing
> after
>>> that. I am unable to understand the cause as well. I think that it
> might be
>>> due to some sort of limit getting reached, i implemented a throttler as
>>> well, but the result was same.
>>>=20
>>> My loop is as below:
>>>=20
>>>               <loop>
>>>                       <simple>${body[EndIndex]}</simple>
>>>                       <setBody><simple>${null}</simple></setBody>
>>>                       <setHeader headerName=3D"Exchange.HTTP_URI">
>>>                               <simple>
>>> http://XX.XX.XX.XX:8080/rest/YY/${property.CamelLoopIndex}</simple>
>>>                 </setHeader>
>>>                 <setHeader headerName=3D"CamelHttpMethod">
>>>                               <constant>GET</constant>
>>>                 </setHeader>
>>>                       <to uri=3D"http4://dummy"/>
>>>=20
>>>                 <bean ref=3D"in" method=3D"adddataCache" />
>>>                        <log message=3D"body after GET cache ${body}" />
>>>               </loop>
>>>=20
>>>=20
>>>=20
>>> Following is the stacktrace:
>>>=20
>>> Stacktrace
> --------------------------------------------------------------------------=
-------------------------------------------------------------
>>> org.apache.camel.component.http4.HttpOperationFailedException: HTTP
>>> operation failed invoking http4://XX.XX.XX.XX:8080/rest/YY/42 with
>>> statusCode: 400
>>>       at
> org.apache.camel.component.http4.HttpProducer.populateHttpOperationFailedE=
xception(HttpProducer.java:236)[426:org.apache.camel.camel-http4:
>>> 2.15.1.redhat-620133]
>>>       at
> org.apache.camel.component.http4.HttpProducer.process(HttpProducer.java:16=
3)[426:org.apache.camel.camel-http4:2.15.1.redhat-620133]
>>>       at
> org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProces=
sorBridge.process(AsyncProcessorConverterHelper.java:61)[198:org.
>>> apache.camel.camel-core:2.15.1.redhat-620133]
>>>       at
> org.apache.camel.processor.SendProcessor.process(SendProcessor.java:129)[1=
98:org.apache.camel.camel-core:2.15.1.redhat-620133]
>>>       at
> org.apache.camel.management.InstrumentationProcessor.process(Instrumentati=
onProcessor.java:77)[198:org.apache.camel.camel-core:2.15.1.redha
>>> t-620133]
>>>       at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorH=
andler.java:448)[198:org.apache.camel.camel-core:2.15.1.redhat-62
>>> 0133]
>>>       at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalPro=
cessor.java:191)[198:org.apache.camel.camel-core:2.15.1.redhat-62
>>> 0133]
>>>       at
> org.apache.camel.processor.DelayProcessorSupport.process(DelayProcessorSup=
port.java:160)[198:org.apache.camel.camel-core:2.15.1.redhat-6201
>>> 33]
>>>       at
> org.apache.camel.management.InstrumentationProcessor.process(Instrumentati=
onProcessor.java:77)[198:org.apache.camel.camel-core:2.15.1.redha
>>> t-620133]
>>>       at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorH=
andler.java:448)[198:org.apache.camel.camel-core:2.15.1.redhat-62
>>> 0133]
>>>       at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalPro=
cessor.java:191)[198:org.apache.camel.camel-core:2.15.1.redhat-62
>>> 0133]
>>>       at
> org.apache.camel.processor.Pipeline.process(Pipeline.java:118)[198:org.apa=
che.camel.camel-core:2.15.1.redhat-620133]
>>>=20
>>>=20
>>>=20
>>>=20
>>> Any suggestions?