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From Michael Elman <el...@apache.org>
Subject Re: Inconsistent Unmarshalling during Concurrent requests
Date Sun, 11 Dec 2011 09:28:47 GMT
One more interesting test. I tried to run your test with Wink
1.1.1-incubating and with Wink 1.1.2-incubating.
1.1.1-incubating worked fine with 1000 concurrent threads.
1.1.2-incubating failed with 500.

So the problem was introduced in Wink 1.1.2-incubating.

On Sun, Dec 11, 2011 at 11:14 AM, Michael Elman <elman@apache.org> wrote:

> I have created a trivial JAXB Provider:
>
>   @Provider
>     @Consumes(MediaType.APPLICATION_XML)
>     @Produces(MediaType.APPLICATION_XML)
>     public class TrivialJaxbProvider implements MessageBodyReader<Object> {
>
>         @Override
>         public boolean isReadable(Class<?> type, Type genericType,
> Annotation[] annotations, MediaType mediaType) {
>
>             return true;
>         }
>
>         @Override
>         public Object readFrom(Class<Object> type, Type genericType,
> Annotation[] annotations, MediaType mediaType, MultivaluedMap<String,
> String> httpHeaders,
>                 InputStream entityStream) throws IOException,
> WebApplicationException {
>             try {
>                 return
> JAXBContext.newInstance(type).createUnmarshaller().unmarshal(entityStream);
>             } catch (JAXBException e) {
>                    throw new WebApplicationException(e);
>             }
>         }
>
>     }
>
> and used it for this test. It worked fine with 750 threads.
> So it seems that the bug is in a JAXB Provider.
>
> I'll try to find some time to look into it. Anyway, meanwhile you can use
> your own JAXB provider and it should work.
>
> On Fri, Dec 9, 2011 at 8:36 AM, Kumar, Munirathnam <
> munirathnam.kumar@hp.com> wrote:
>
>>  Test Scenario****
>>
>> Methodology****
>>
>> Status****
>>
>> No of threads used : 1000****
>>
>> Java SDK : 1.5****
>>
>> OS : Windows****
>>
>> JAXB on Server: jaxb 2.2****
>>
>> Wink : 1.3 ****
>>
>> ** **
>>
>> XML String : "<UserSubscription>"****
>>
>>             +       "<selectedOptions><entry><key >Amount of Memory
>> (MB)</key><value >2000</value></entry>" +****
>>
>>                                    "<entry><key>Number of
>> CPUs</key><value>1</value></entry>" +****
>>
>>                                    "<entry><key>Number of
>> Servers</key><value>1</value></entry>"****
>>
>>             +      "</selectedOptions>"****
>>
>>             +   "</UserSubscription>";****
>>
>> ** **
>>
>> Jaxb****
>>
>> Version : 2.2****
>>
>> JAXB Components jars were tested for Unmarshall issues.****
>>
>> Concurrent method invocation were exceuted to Unmarshall the xml file.***
>> *
>>
>> ** **
>>
>> Sample Code :****
>>
>> ** **
>>
>>         ServiceRequest request = (ServiceRequest)
>> context.createUnmarshaller().unmarshal( new
>> ByteArrayInputStream(xml.getbytes())); ****
>>
>> ** **
>>
>>         if ( request.getSelectedOptions() == null){****
>>
>>             System.out.println("thread - " +
>> Thread.currentThread().getName() + " : " + " ************** Unmarshal
>> failed ************* ");****
>>
>>         }****
>>
>> All test passed****
>>
>> Wink Resource ****
>>
>> @POST****
>>
>> @Consumes(MediaType.TEXT_PLAIN)****
>>
>> A Wink Resource was used to post the XML String. ****
>>
>> It was consumed using MediaType.TEXT_PLAIN****
>>
>> XML was Unmarshalled using JAXB to create  ServiceRequest object****
>>
>> ** **
>>
>> Sample Code:****
>>
>> ** **
>>
>> @POST****
>>
>> @Consumes(MediaType.TEXT_PLAIN)****
>>
>> @Produces(MediaType.TEXT_PLAIN)****
>>
>>     public Response getLogs(String xmlRequest){   ****
>>
>>     String res = "";****
>>
>>     try {****
>>
>>         ServiceRequest request = (ServiceRequest)
>> context.createUnmarshaller().unmarshal( new
>> ByteArrayInputStream(xmlRequest.getbytes())); ****
>>
>> ** **
>>
>>         if ( request.getSelectedOptions() == null){****
>>
>>             System.out.println(" ************** Unmarshal failed
>> ************* ");****
>>
>>         }****
>>
>> All test Passed****
>>
>> Wink Resource ****
>>
>> @POST****
>>
>> @Consumes(MediaType.* **APPLICATION_XML)*****
>>
>> A Wink Resource was used to post the XML String. ****
>>
>> It was consumed using ****
>>
>> MediaType.* APPLICATION_XML* ****
>>
>> ** **
>>
>> Sample code:****
>>
>> ** **
>>
>> @POST****
>>
>> @Consumes(MediaType.* APPLICATION_XML*)****
>>
>> ** **
>>
>>     public Response getLogs(ServiceRequest request){   ****
>>
>>     String res = "";****
>>
>> ** **
>>
>>         if ( request.getSelectedOptions() == null){****
>>
>>             System.out.println(" ************** Unmarshal failed
>> ************* ");****
>>
>>         }****
>>
>> Few threads failed with errors ****
>>
>> ** **
>>
>> ** **
>>
>> Thanks****
>>
>> Kumar****
>>
>> Cloud Services****
>>
>> ** **
>>
>> ** **
>>
>> *From:* Michael Elman [mailto:elman@apache.org]
>> *Sent:* Thursday, December 08, 2011 11:32 PM
>>
>> *To:* wink-user@incubator.apache.org
>> *Subject:* Re: Inconsistent Unmarshalling during Concurrent requests****
>>
>> ** **
>>
>> I guess so...
>> The question if it's a Wink bug, or may be JAXB...
>> If I have time next week, I'll try to look into it.
>>
>> Did you try to run the same scenario without JAXB? let's say sent plain
>> text and receive it?
>> Send JSON?
>>
>> I guess it can be interesting...****
>>
>> On Thu, Dec 8, 2011 at 6:17 PM, Kumar, Munirathnam <
>> munirathnam.kumar@hp.com> wrote:****
>>
>> Does this issue qualify for a bug ?****
>>
>>  ****
>>
>> *From:* Michael Elman [mailto:elman@apache.org]
>> *Sent:* Thursday, December 08, 2011 9:32 PM****
>>
>>
>> *To:* wink-user@incubator.apache.org
>> *Subject:* Re: Inconsistent Unmarshalling during Concurrent requests****
>>
>>  ****
>>
>> Yes, I did it many times.****
>>
>> With 200 threads it still worked fine.****
>>
>> With 500 some requests failed...****
>>
>> no idea what the problem is...****
>>
>> On Thu, Dec 8, 2011 at 5:56 PM, Kumar, Munirathnam <
>> munirathnam.kumar@hp.com> wrote:****
>>
>> Here is result again. There are failed results as well. Can you please re
>> run couple of times. ****
>>
>>  ****
>>
>> thread - 44 : Serialisation Passed****
>>
>> thread - 48 : Serialisation Passed****
>>
>> thread - 36 : Serialisation Passed****
>>
>> thread - 46 : Serialisation Passed****
>>
>> thread - 4 : Serialisation Passed****
>>
>> thread - 30 : Serialisation Passed****
>>
>> thread - 13 : Serialisation Passed****
>>
>> thread - 23 : Serialisation Passed****
>>
>> thread - 25 : Serialisation Failed****
>>
>> thread - 45 : Serialisation Failed****
>>
>> thread - 28 : Serialisation Passed****
>>
>> thread - 10 : Serialisation Passed****
>>
>> thread - 24 : Serialisation Failed****
>>
>> thread - 35 : Serialisation Passed****
>>
>> thread - 22 : Serialisation Failed****
>>
>> thread - 34 : Serialisation Passed****
>>
>> thread - 47 : Serialisation Passed****
>>
>> thread - 7 : Serialisation Passed****
>>
>> thread - 38 : Serialisation Failed****
>>
>> thread - 43 : Serialisation Failed****
>>
>> thread - 17 : Serialisation Passed****
>>
>> thread - 41 : Serialisation Failed****
>>
>> thread - 9 : Serialisation Failed****
>>
>> thread - 18 : Serialisation Failed****
>>
>> thread - 15 : Serialisation Passed****
>>
>> thread - 12 : Serialisation Failed****
>>
>> thread - 20 : Serialisation Passed****
>>
>> thread - 42 : Serialisation Passed****
>>
>> thread - 16 : Serialisation Passed****
>>
>> thread - 31 : Serialisation Passed****
>>
>> thread - 14 : Serialisation Failed****
>>
>> thread - 27 : Serialisation Failed****
>>
>> thread - 11 : Serialisation Passed****
>>
>> thread - 26 : Serialisation Failed****
>>
>> thread - 8 : Serialisation Failed****
>>
>> thread - 19 : Serialisation Passed****
>>
>> thread - 40 : Serialisation Passed****
>>
>> thread - 0 : Serialisation Passed****
>>
>> thread - 21 : Serialisation Passed****
>>
>> thread - 3 : Serialisation Failed****
>>
>> thread - 6 : Serialisation Passed****
>>
>> thread - 2 : Serialisation Passed****
>>
>> thread - 33 : Serialisation Failed****
>>
>> thread - 49 : Serialisation Passed****
>>
>> thread - 39 : Serialisation Failed****
>>
>> thread - 37 : Serialisation Passed****
>>
>> thread - 29 : Serialisation Passed****
>>
>> thread - 1 : Serialisation Passed****
>>
>> thread - 5 : Serialisation Passed****
>>
>> thread - 32 : Serialisation Failed****
>>
>>  ****
>>
>> *From:* Michael Elman [mailto:elman@apache.org]
>> *Sent:* Thursday, December 08, 2011 9:22 PM****
>>
>>
>> *To:* wink-user@incubator.apache.org
>> *Subject:* Re: Inconsistent Unmarshalling during Concurrent requests****
>>
>>  ****
>>
>> Tried to run your code. Everything looks fine:****
>>
>>  ****
>>
>> thread - 29 : Serialization Passed****
>>
>> thread - 0 : Serialization Passed****
>>
>> thread - 20 : Serialization Passed****
>>
>> thread - 9 : Serialization Passed****
>>
>> thread - 7 : Serialization Passed****
>>
>> thread - 38 : Serialization Passed****
>>
>> thread - 5 : Serialization Passed****
>>
>> thread - 37 : Serialization Passed****
>>
>> thread - 36 : Serialization Passed****
>>
>> thread - 25 : Serialization Passed****
>>
>> thread - 1 : Serialization Passed****
>>
>> thread - 13 : Serialization Passed****
>>
>> thread - 47 : Serialization Passed****
>>
>> thread - 4 : Serialization Passed****
>>
>> thread - 43 : Serialization Passed****
>>
>> thread - 22 : Serialization Passed****
>>
>> thread - 28 : Serialization Passed****
>>
>> thread - 17 : Serialization Passed****
>>
>> thread - 21 : Serialization Passed****
>>
>> thread - 33 : Serialization Passed****
>>
>> thread - 32 : Serialization Passed****
>>
>> thread - 30 : Serialization Passed****
>>
>> thread - 40 : Serialization Passed****
>>
>> thread - 39 : Serialization Passed****
>>
>> thread - 24 : Serialization Passed****
>>
>> thread - 35 : Serialization Passed****
>>
>> thread - 16 : Serialization Passed****
>>
>> thread - 31 : Serialization Passed****
>>
>> thread - 18 : Serialization Passed****
>>
>> thread - 44 : Serialization Passed****
>>
>> thread - 42 : Serialization Passed****
>>
>> thread - 34 : Serialization Passed****
>>
>> thread - 2 : Serialization Passed****
>>
>> thread - 10 : Serialization Passed****
>>
>> thread - 27 : Serialization Passed****
>>
>> thread - 19 : Serialization Passed****
>>
>> thread - 3 : Serialization Passed****
>>
>> thread - 49 : Serialization Passed****
>>
>> thread - 26 : Serialization Passed****
>>
>> thread - 46 : Serialization Passed****
>>
>> thread - 41 : Serialization Passed****
>>
>> thread - 8 : Serialization Passed****
>>
>> thread - 14 : Serialization Passed****
>>
>> thread - 23 : Serialization Passed****
>>
>> thread - 11 : Serialization Passed****
>>
>> thread - 6 : Serialization Passed****
>>
>> thread - 45 : Serialization Passed****
>>
>> thread - 48 : Serialization Passed****
>>
>> thread - 12 : Serialization Passed****
>>
>> thread - 15 : Serialization Passed****
>>
>>  ****
>>
>> On Thu, Dec 8, 2011 at 5:07 PM, Kumar, Munirathnam <
>> munirathnam.kumar@hp.com> wrote:****
>>
>> I have created new Instance for each thread but still I have the same
>> issue.****
>>
>>  ****
>>
>> RestClient client = new RestClient();****
>>
>>  ****
>>
>> for ( int i =0; i < 50 ; i ++ ){****
>>
>>              resource = client.resource("
>> http://localhost:8080/logger/test");****
>>
>>              new Thread(new Multi(resource),new
>> Integer(i).toString()).start();****
>>
>>          }****
>>
>>  ****
>>
>>  ****
>>
>> *From:* Michael Elman [mailto:elman@apache.org]
>> *Sent:* Thursday, December 08, 2011 8:11 PM
>> *To:* wink-user@incubator.apache.org
>> *Subject:* Re: Inconsistent Unmarshalling during Concurrent requests****
>>
>>  ****
>>
>> If I understand your code correctly, you reuse Resource instance on
>> multiple threads. ****
>>
>> But as I recall Resource is not threadsafe.****
>>
>> Just create a new instance each time, and it should be fine.****
>>
>> On Thu, Dec 8, 2011 at 4:05 PM, Kumar, Munirathnam <
>> munirathnam.kumar@hp.com> wrote:****
>>
>> Hi****
>>
>> I am requesting  Concurrent requests to a Resource.****
>>
>> But on the Resource, bean objects are not completely populated for some
>> request and gets populated completely for other requests.****
>>
>>  ****
>>
>> Please see the Client,Bean and Resource Class below.****
>>
>>  ****
>>
>> For few client request the *request.getSelectedOptions()* always returns
>> null . ****
>>
>>  ****
>>
>> Is this a bug with Wink ?****
>>
>>  ****
>>
>> Can you please help****
>>
>>  ****
>>
>> -          kumar****
>>
>>  ****
>>
>> Client ****
>>
>>  ****
>>
>> class Multi implements Runnable{    ****
>>
>>     Resource resource;****
>>
>>     String xml = "<UserSubscription>"****
>>
>>             +       "<selectedOptions><entry><key >Amount of Memory
>> (MB)</key><value >2000</value></entry>" +****
>>
>>                                            "<entry><key>Number of
>> CPUs</key><value>1</value></entry>" +****
>>
>>                                            "<entry><key>Number of
>> Servers</key><value>1</value></entry>"****
>>
>>             +      "</selectedOptions>"****
>>
>>             +   "</UserSubscription>";****
>>
>>     ****
>>
>>     Multi(Resource resource){****
>>
>>         this.resource = resource;****
>>
>>         ****
>>
>>     }****
>>
>>     public void run(){****
>>
>>              String res =
>> resource.contentType(MediaType.APPLICATION_XML).accept(MediaType.TEXT_PLAIN).post(String.class,xml);
>> ****
>>
>>              System.out.println("thread - " +
>> Thread.currentThread().getName() + " : " +  res);       ****
>>
>>     }****
>>
>> }****
>>
>>  ****
>>
>> Bean Class****
>>
>>  ****
>>
>> @XmlAccessorType(XmlAccessType.NONE)****
>>
>> @XmlRootElement(name = "UserSubscription")****
>>
>> public class ServiceRequest {****
>>
>>                 private Properties modelInputs;****
>>
>>  ****
>>
>>  ****
>>
>>                 public  void setSelectedOptions(Properties modelInputs) {
>> ****
>>
>>                                 this.modelInputs = modelInputs;****
>>
>>                 }****
>>
>>  ****
>>
>>                 @XmlElementWrapper(name = "selectedOptions", required =
>> true, nillable = false)****
>>
>>                 public  Properties getSelectedOptions() {****
>>
>>                                 return this.modelInputs;****
>>
>>                 }****
>>
>> }****
>>
>>  ****
>>
>>  ****
>>
>> Resource Class****
>>
>>  ****
>>
>> @Path("/test")****
>>
>> public class PropResource {****
>>
>>     ****
>>
>> @POST****
>>
>> @Consumes(MediaType.APPLICATION_XML)****
>>
>> @Produces(MediaType.TEXT_PLAIN)****
>>
>>     public Response getLogs(ServiceRequest request){****
>>
>>  ****
>>
>>     String res = "";****
>>
>>     if( request.getSelectedOptions() == null){               ****
>>
>>         res = "Serialization Failed";****
>>
>>     } else if(request.getSelectedOptions() != null ){        ****
>>
>>         res = "Serialization Passed";****
>>
>>     }    ****
>>
>>     return Response.ok(res).build();****
>>
>>     }****
>>
>>  ****
>>
>> }****
>>
>>  ****
>>
>>  ****
>>
>>  ****
>>
>>  ****
>>
>> ** **
>>
>
>

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