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https://issues.apache.org/jira/browse/CLEREZZA-321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12919795#action_12919795
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Tsuyoshi Ito edited comment on CLEREZZA-321 at 10/12/10 3:36 AM:
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e.g.
400 concurrent users (10 sec click delay, start time random) requested
http://localhost:8080/admin/users/list-users
After 30'000 requests the list was broken - not sure if the list was broken
permanently (in case the list is stored in the triple store) because after
restart (I could not shutdown, so I had to kill "screen" after a while) the
list seems to be ok.
was (Author: tsuy):
e.g.
400 concurrent users (10 sec click delay, start time random) requested
http://localhost:8080/admin/users/list-users
After 30'000 requests the list was broken - not sure if the list was broken
permanently because after restart (I could not shutdown, so I had to kill
screen after a while) the list seems to be ok.
> stresstest: requested a ssp page containing an rdflist.
> -------------------------------------------------------
>
> Key: CLEREZZA-321
> URL: https://issues.apache.org/jira/browse/CLEREZZA-321
> Project: Clerezza
> Issue Type: Bug
> Reporter: Tsuyoshi Ito
> Priority: Blocker
>
> After a while the following error occured on the page:
> java.lang.RuntimeException: java.lang.RuntimeException: broken list
> org.apache.clerezza.rdf.core.bn...@3bebc3b5 at
> org.apache.clerezza.rdf.utils.RdfList.getFirstEntry(RdfList.java:270)
> at org.apache.clerezza.rdf.utils.RdfList.expandTill(RdfList.java:155) at
> org.apache.clerezza.rdf.utils.RdfList.size(RdfList.java:170) at
> java.util.AbstractList$Itr.hasNext(AbstractList.java:339) at
> scala.collection.JavaConversions$JIteratorWrapper.hasNext(JavaConversions.scala:475)
> at scala.collection.Iterator$class.foreach(Iterator.scala:631) at
> scala.collection.JavaConversions$JIteratorWrapper.foreach(JavaConversions.scala:474)
> at
> scala.collection.IterableLike$class.foreach(IterableLike.scala:79) at
> scala.collection.JavaConversions$JListWrapper.foreach(JavaConversions.scala:521)
> at scala.collection.TraversableLike$class.map(TraversableLike.scala:206)
> at
> scala.collection.JavaConversions$JListWrapper.map(JavaConversions.scala:521)
> at
> org.apache.clerezza.rdf.scala.utils.RichGraphNode.$bang$bang(RichGraphNode.scala:46)
> at CompiledScript5.topMenu$1(<script>:76) at
> CompiledScript5.run(<script>:188) at
> sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source) at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597) at
> org.apache.clerezza.scala.scripting.ScriptEngineFactory$MyScriptEngine$$anon$4$$anon$5.eval(ScriptEngineFactory.scala:270)
> at javax.script.CompiledScript.eval(CompiledScript.java:75) at
> org.apache.clerezza.platform.typerendering.scalaserverpages.ScalaServerPagesRenderlet$1.run(ScalaServerPagesRenderlet.java:231)
> at java.security.AccessController.doPrivileged(Native Method) at
> org.apache.clerezza.platform.typerendering.scalaserverpages.ScalaServerPagesRenderlet.exec(ScalaServerPagesRenderlet.java:227)
> at
> org.apache.clerezza.platform.typerendering.scalaserverpages.ScalaServerPagesRenderlet.render(ScalaServerPagesRenderlet.java:132)
> at
> org.apache.clerezza.platform.typerendering.RendererImpl.render(RendererImpl.java:95)
> at
> org.apache.clerezza.platform.typerendering.CallbackRendererImpl.render(CallbackRendererImpl.java:59)
> at CompiledScript1.render$1(<script>:31) at
> CompiledScript1.run(<script>:150) at
> sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597) at
> org.apache.clerezza.scala.scripting.ScriptEngineFactory$MyScriptEngine$$anon$4$$anon$5.eval(ScriptEngineFactory.scala:270)
> at javax.script.CompiledScript.eval(CompiledScript.java:75) at
> org.apache.clerezza.platform.typerendering.scalaserverpages.ScalaServerPagesRenderlet$1.run(ScalaServerPagesRenderlet.java:231)
> at java.security.AccessController.doPrivileged(Native Method) at
> org.apache.clerezza.platform.typerendering.scalaserverpages.ScalaServerPagesRenderlet.exec(ScalaServerPagesRenderlet.java:227)
> at
> org.apache.clerezza.platform.typerendering.scalaserverpages.ScalaServerPagesRenderlet.render(ScalaServerPagesRenderlet.java:132)
> at
> org.apache.clerezza.platform.typerendering.RendererImpl.render(RendererImpl.java:95)
> at
> org.apache.clerezza.platform.typerendering.GenericGraphNodeMBW.writeTo(GenericGraphNodeMBW.java:159)
> at
> org.apache.clerezza.platform.typerendering.GenericGraphNodeMBW.writeTo(GenericGraphNodeMBW.java:76)
> at
> org.apache.clerezza.triaxrs.ResponseProcessor$1.writeTo(ResponseProcessor.java:333)
> at
> org.apache.clerezza.triaxrs.ResponseProcessor$1.access$200(ResponseProcessor.java:280)
> at
> org.apache.clerezza.triaxrs.ResponseProcessor$1$3.run(ResponseProcessor.java:313)
> at java.security.AccessController.doPrivileged(Native Method) at
> javax.security.auth.Subject.doAs(Subject.java:396) at
> org.apache.clerezza.triaxrs.ResponseProcessor$1.writeTo(ResponseProcessor.java:309)
> at
> org.wymiwyg.wrhapi.osgi.OsgiWebServerFactory$1.service(OsgiWebServerFactory.java:112)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
> at
> org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
> at
> org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:109)
> at
> org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:75)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
> at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:532)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:965)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:388)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:187)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:901)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:113)
> at org.eclipse.jetty.server.Server.handle(Server.java:352) at
> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:596)
> at
> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:1048)
> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:549)
> at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:211)
> at org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:425)
> at
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:489)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:436)
> at java.lang.Thread.run(Thread.java:619) Caused by:
> java.lang.RuntimeException: broken list
> org.apache.clerezza.rdf.core.bn...@3bebc3b5 at
> org.apache.clerezza.rdf.utils.RdfList.getFirstEntry(RdfList.java:268)
> ... 68 more Caused by: java.lang.NullPointerException
> Console log says
> [qtp1281006702-136] WARN org.apache.clerezza.rdf.utils.RdfList - GraphNode:
> org.apache.clerezza.rdf.core.bn...@3bebc3b5
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