[Carbon-dev] IOException on the MTOM web service client side

Güçlü Akkaya guclu.akkaya at ardictech.com
Thu Jan 19 04:16:25 EST 2012


I see. So should i synchronize the initiliazation part which calls a new instance of stub?
Also the method call of the stub instance like stub.getId() should also be synchronized?

Thanks 


>Please note that by design, Axis2 clients & stubs are not thread safe. You
will have to handle the synchronization in your code.

Fatih Güçlü Akkaya

Software Development Engineer
 



 

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-----Original Message-----
From: carbon-dev-bounces at wso2.org on behalf of Afkham Azeez
Sent: Thu 1/19/2012 07:37
To: carbon-dev at wso2.org
Subject: Re: [Carbon-dev] IOException on the MTOM web service client side
 
Please note that by design, Axis2 clients & stubs are not thread safe. You
will have to handle the synchronization in your code.

2012/1/9 Güçlü Akkaya <guclu.akkaya at ardictech.com>

> **
>
>
> Hi again,
>
> Again for the MTOM web service load test i am facing this exception on the
> client side:
>
> Failed to perform get operation.
> {com.ardic.arcsp.update.wsclient.WSStorageServiceClient}
> org.apache.axis2.AxisFault: org.apache.axiom.ext.io.StreamCopyException:
> Error reading from source
>         at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
>         at
> com.ardic.arcsp.carbon.registry.ws.stub.WSStorageServiceStub.fromOM(WSStorageServiceStub.java:16706)
>         at
> com.ardic.arcsp.carbon.registry.ws.stub.WSStorageServiceStub.wSgetById(WSStorageServiceStub.java:6659)
>         at
> com.ardic.arcsp.update.wsclient.WSStorageServiceClient.getResourceById(WSStorageServiceClient.java:171)
>         at
> com.ardic.arcsp.update.wsclient.OTAUpdateTestServlet.downloadResource(OTAUpdateTestServlet.java:139)
>         at
> com.ardic.arcsp.update.wsclient.OTAUpdateTestServlet.doGet(OTAUpdateTestServlet.java:91)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
>         at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
>         at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
>         at
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
>         at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
>         at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
>         at
> org.wso2.carbon.server.TomcatServer$1.invoke(TomcatServer.java:241)
>         at
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
>         at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
>         at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:399)
>         at
> org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:396)
>         at
> org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:356)
>         at
> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1534)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:662)
> Caused by: org.apache.axiom.om.OMException:
> org.apache.axiom.ext.io.StreamCopyException: Error reading from source
>         at
> org.apache.axiom.attachments.impl.PartFactory.createPart(PartFactory.java:172)
>         at
> org.apache.axiom.attachments.Attachments.getPart(Attachments.java:705)
>         at
> org.apache.axiom.attachments.Attachments.getNextPartDataHandler(Attachments.java:623)
>         at
> org.apache.axiom.attachments.Attachments.getDataHandler(Attachments.java:350)
>         at
> org.apache.axiom.om.impl.builder.OMAttachmentAccessorMimePartProvider.getDataHandler(OMAttachmentAccessorMimePartProvider.java:45)
>         at
> org.apache.axiom.util.stax.xop.XOPDecodingStreamReader$DataHandlerProviderImpl.getDataHandler(XOPDecodingStreamReader.java:81)
>         at
> org.apache.axiom.util.stax.xop.XOPDecodingStreamReader.getDataHandler(XOPDecodingStreamReader.java:472)
>         at
> org.apache.axiom.om.impl.SwitchingWrapper.getDataHandler(SwitchingWrapper.java:1360)
>         at
> org.apache.axiom.util.stax.XMLStreamReaderUtils.getDataHandlerFromElement(XMLStreamReaderUtils.java:230)
>         at
> com.ardic.arcsp.carbon.registry.ws.stub.xsd.WSResource$Factory.parse(WSResource.java:2087)
>         at
> com.ardic.arcsp.carbon.registry.ws.stub.WSgetByIdResponse$Factory.parse(WSgetByIdResponse.java:417)
>         at
> com.ardic.arcsp.carbon.registry.ws.stub.WSStorageServiceStub.fromOM(WSStorageServiceStub.java:16273)
>         ... 23 more
> Caused by: org.apache.axiom.ext.io.StreamCopyException: Error reading from
> source
>         at
> org.apache.axiom.attachments.utils.BAAOutputStream.readFrom(BAAOutputStream.java:114)
>         at
> org.apache.axiom.attachments.impl.BufferUtils.inputStream2OutputStream(BufferUtils.java:76)
>         at
> org.apache.axiom.attachments.impl.PartFactory.createPart(PartFactory.java:136)
>         ... 34 more
> Caused by: java.io.IOException: CRLF expected at end of chunk: 2/63
>         at
> org.apache.commons.httpclient.ChunkedInputStream.readCRLF(ChunkedInputStream.java:207)
>         at
> org.apache.commons.httpclient.ChunkedInputStream.nextChunk(ChunkedInputStream.java:219)
>         at
> org.apache.commons.httpclient.ChunkedInputStream.read(ChunkedInputStream.java:176)
>         at java.io.FilterInputStream.read(FilterInputStream.java:116)
>         at
> org.apache.commons.httpclient.AutoCloseInputStream.read(AutoCloseInputStream.java:108)
>         at java.io.FilterInputStream.read(FilterInputStream.java:116)
>         at
> org.apache.axiom.om.util.DetachableInputStream.read(DetachableInputStream.java:147)
>         at java.io.FilterInputStream.read(FilterInputStream.java:116)
>         at java.io.PushbackInputStream.read(PushbackInputStream.java:169)
>         at
> org.apache.axiom.attachments.BoundaryPushbackInputStream.readFromStream(BoundaryPushbackInputStream.java:114)
>         at
> org.apache.axiom.attachments.BoundaryPushbackInputStream.read(BoundaryPushbackInputStream.java:248)
>         at
> org.apache.axiom.attachments.MIMEBodyPartInputStream.read(MIMEBodyPartInputStream.java:87)
>         at
> org.apache.axiom.attachments.utils.BAAOutputStream.readFrom(BAAOutputStream.java:112)
>         ... 36 more
>
>
>
> The client side for the web service WSStorageService consists of a servlet
> which used WSStorageClient referenced from the
> org.wso2.carbon.registry.ws.client.WSRegistryServiceClient. In the get
> request the servlet request the resorce file from the web service and the
> end user can download the file. In the attachment you can find both the
> servlet and web service client code. This exception occurs in some cases
> during my load test on the web service. What is the cause of this
> exception? If this related to my code, what do i have to do the avoid this
> error in my code?
>
>
>
>
> Fatih Güçlü Akkaya
>
> Software Development Engineer
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
> Carbon-dev mailing list
> Carbon-dev at wso2.org
> http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>
>


-- 
*Afkham Azeez*
Director of Architecture; WSO2, Inc.; http://wso2.com
Member; Apache Software Foundation; http://www.apache.org/
* <http://www.apache.org/>**
email: **azeez at wso2.com* <azeez at wso2.com>* cell: +94 77 3320919
blog: **http://blog.afkham.org* <http://blog.afkham.org>*
twitter: **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez>
*
linked-in: **http://lk.linkedin.com/in/afkhamazeez*
*
*
*Lean . Enterprise . Middleware*

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