Unexpected error while browsing (SMALL) data

[jakubklimek]

frontend.log:

2014-09-02 15:07:29,529 [http-bio-8080-exec-2] ERROR c.c.m.x.o.f.container.rdf.RepositoryFrontendHelper - DPU info is null!
2014-09-02 15:07:29,531 [http-bio-8080-exec-2] ERROR cz.cuni.mff.xrg.odcs.frontend.AppEntry - Uncaught exception
java.lang.NullPointerException: null
        at cz.cuni.mff.xrg.odcs.frontend.container.rdf.RDFQuery.(RDFQuery.java:73) ~[RDFQuery.class:na]
        at cz.cuni.mff.xrg.odcs.frontend.container.rdf.RDFQueryFactory.constructQuery(RDFQueryFactory.java:26) ~[RDFQueryFactory.class:na]
        at org.vaadin.addons.lazyquerycontainer.LazyQueryView.getQuery(LazyQueryView.java:406) ~[vaadin-lazyquerycontainer-2.0.9.jar:2.0.9]
        at org.vaadin.addons.lazyquerycontainer.LazyQueryView.getQuerySize(LazyQueryView.java:392) ~[vaadin-lazyquerycontainer-2.0.9.jar:2.0.9]
        at org.vaadin.addons.lazyquerycontainer.LazyQueryView.size(LazyQueryView.java:219) ~[vaadin-lazyquerycontainer-2.0.9.jar:2.0.9]
        at org.vaadin.addons.lazyquerycontainer.LazyQueryContainer.size(LazyQueryContainer.java:183) ~[vaadin-lazyquerycontainer-2.0.9.jar:2.0.9]
        at cz.cuni.mff.xrg.odcs.frontend.gui.components.RDFQueryView.runQuery(RDFQueryView.java:363) ~[RDFQueryView.class:na]
        at cz.cuni.mff.xrg.odcs.frontend.gui.components.RDFQueryView.browseDataUnit(RDFQueryView.java:399) ~[RDFQueryView.class:na]
        at cz.cuni.mff.xrg.odcs.frontend.gui.components.Browse$1.componentEvent(Browse.java:45) ~[Browse$1.class:na]
        at cz.cuni.mff.xrg.odcs.frontend.gui.components.DataUnitSelector.fireEvent(DataUnitSelector.java:147) ~[DataUnitSelector.class:na]
        at cz.cuni.mff.xrg.odcs.frontend.gui.components.DataUnitSelector.access$400(DataUnitSelector.java:29) ~[DataUnitSelector.class:na]
        at cz.cuni.mff.xrg.odcs.frontend.gui.components.DataUnitSelector$4.buttonClick(DataUnitSelector.java:123) ~[DataUnitSelector$4.class:na]
        at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source) ~[na:na]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_65]
        at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_65]
        at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508) ~[vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:167) ~[vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:969) ~[vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.ui.Button.fireClick(Button.java:368) ~[vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.ui.Button$1.click(Button.java:57) ~[vaadin-server-7.1.8.jar:7.1.8]
        at sun.reflect.GeneratedMethodAccessor83.invoke(Unknown Source) ~[na:na]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_65]
        at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_65]
        at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:168) ~[vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:118) ~[vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.server.communication.ServerRpcHandler.handleBurst(ServerRpcHandler.java:207) [vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:111) [vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:91) [vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:37) [vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1371) [vaadin-server-7.1.8.jar:7.1.8]
        at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:238) [vaadin-server-7.1.8.jar:7.1.8]
        at cz.cuni.mff.xrg.odcs.frontend.ODCSApplicationServlet.service(ODCSApplicationServlet.java:79) [ODCSApplicationServlet.class:na]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) [tomcat-servlet-api-3.0.jar:na]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) [tomcat-catalina-7.0.28.jar:7.0.28]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [tomcat-catalina-7.0.28.jar:7.0.28]
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225) [tomcat-catalina-7.0.28.jar:7.0.28]
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) [tomcat-catalina-7.0.28.jar:7.0.28]
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) [tomcat-catalina-7.0.28.jar:7.0.28]
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) [tomcat-catalina-7.0.28.jar:7.0.28]
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) [tomcat-catalina-7.0.28.jar:7.0.28]
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) [tomcat-catalina-7.0.28.jar:7.0.28]
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) [tomcat-catalina-7.0.28.jar:7.0.28]
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) [tomcat-catalina-7.0.28.jar:7.0.28]
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002) [tomcat-coyote-7.0.28.jar:7.0.28]
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) [tomcat-coyote-7.0.28.jar:7.0.28]
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) [tomcat-coyote-7.0.28.jar:7.0.28]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_65]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_65]
        at java.lang.Thread.run(Thread.java:745) [na:1.7.0_65]

[martinnec]

A saw this problem several times. There are several pipelines where browsing in the debug mode does not work.

Is this happening also when you are trying to Browse/Query old pipeline runs? (not the last one immediately after it is completed)

After hour of trying, I am unable to give it one shot of reproducing this bug.

[jakubklimek]

Have you tried it on the pipeline shown on the screenshot?
On Sep 11, 2014 10:01 AM, "Michal Klempa" notifications@github.com wrote:

After hour of trying, I am unable to give it one shot of reproducing this
bug.

—
Reply to this email directly or view it on GitHub
#148 (comment).

Yes
On 09/11/2014 10:03 AM, jakubklimek wrote:

Have you tried it on the pipeline shown on the screenshot?
On Sep 11, 2014 10:01 AM, "Michal Klempa" notifications@github.com
wrote:

After hour of trying, I am unable to give it one shot of reproducing
this
bug.

—
Reply to this email directly or view it on GitHub
#148 (comment).

—
Reply to this email directly or view it on GitHub
#148 (comment).

Could you make tests:

1. first user- open pipeline in edit window
2. second user - try to browse results in Query/Browse
   is this causing error at least with higher frequency?

r 15.9.2014 18:25:33 - this is the time when the pipeline finished in the debug mode. Then I tried to view the debug data - it could be few 10s of seconds lat

[Jan-Marcek]

This is really a pain for me.
I am unable to make same simple query on dpu's input/output. We really need to start working on browsing. I think the browsing should be one of the biggest reason why people would start to use unifiedviews as ETL tool. This is just my opinion at this moment when I'm starting to learn how to create a pipeline.
(e.g. https://cuni-test1.comsode.eea.sk/unifiedviews/#!ExecutionList/exec=1641)

[Jan-Marcek]

T-Tabular - When I debugging T-Tabular's output I get the error message every time.

https://cuni-test1.comsode.eea.sk/unifiedviews/#!ExecutionList/exec=1739

and then I am unable to browse any DPU.
workaround: I have to debug different dpu (not T-Tabular).