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From "Andy Seaborne (Resolved) (JIRA)" <>
Subject [jira] [Resolved] (JENA-179) On Linux Fuseki will create user owned temporary files that block other users from using the full Fuseki Web UI
Date Tue, 20 Dec 2011 09:31:30 GMT


Andy Seaborne resolved JENA-179.

    Resolution: Not A Problem
      Assignee: Andy Seaborne

Suggestions for better ways to start the server very welcome, ideally the same as a regular
web container manages the situation.
> On Linux Fuseki will create user owned temporary files that block other users from using
the full Fuseki Web UI
> ---------------------------------------------------------------------------------------------------------------
>                 Key: JENA-179
>                 URL:
>             Project: Jena
>          Issue Type: Bug
>          Components: Fuseki
>         Environment: SUSE Linux 11
>            Reporter: Rob Vesse
>            Assignee: Andy Seaborne
> Fuseki seems to create temporary files under Linux which are owned by the running user
and blocks any other users from running Fuseki properly because servlets will not function
> Going to the control panel will produce the following trace:
> Error 500: /tmp/org/apache/jsp/ (Permission denied)
> /tmp/org/apache/jsp/ (Permission
> 	at Method)
> 	at<init>(
> 	at<init>(
> 	at org.apache.jasper.compiler.JDTJavaCompiler.getJavaWriter(
> 	at org.apache.jasper.compiler.Compiler.generateJava(
> 	at org.apache.jasper.compiler.Compiler.compile(
> 	at org.apache.jasper.JspCompilationContext.compile(
> 	at org.apache.jasper.servlet.JspServletWrapper.service(
> 	at org.apache.jasper.servlet.JspServlet.serviceJspFile(
> 	at org.apache.jasper.servlet.JspServlet.service(
> 	at javax.servlet.http.HttpServlet.service(
> 	at org.eclipse.jetty.servlet.ServletHolder.handle(
> 	at org.eclipse.jetty.servlet.ServletHandler.doHandle(
> 	at org.eclipse.jetty.server.session.SessionHandler.doHandle(
> 	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(
> 	at org.eclipse.jetty.servlet.ServletHandler.doScope(
> 	at org.eclipse.jetty.server.session.SessionHandler.doScope(
> 	at org.eclipse.jetty.server.handler.ContextHandler.doScope(
> 	at org.eclipse.jetty.server.handler.ScopedHandler.handle(
> 	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(
> 	at org.eclipse.jetty.server.Server.handle(
> 	at org.eclipse.jetty.server.HttpConnection.handleRequest(
> 	at org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(
> 	at org.eclipse.jetty.http.HttpParser.parseNext(
> 	at org.eclipse.jetty.http.HttpParser.parseAvailable(
> 	at org.eclipse.jetty.server.HttpConnection.handle(
> 	at org.eclipse.jetty.server.nio.BlockingChannelConnector$
> 	at org.eclipse.jetty.util.thread.QueuedThreadPool$
> 	at
> Fuseki - version 0.2.0 (Date: 2011-12-15T15:19:16-0800)
> It looks like these temporary files are being generated by one of the components Fuseki
relies upon rather than Fuseki itself but this is an issue for us because if one user has
run Fuseki another user may be completely blocked from using the web based UI fully.
> Interestingly servlets will still function correctly, e.g. I can still issue queries
directly to /dataset/query and get a response but the lack of a control panel is inconvenient.
> This may not be fixable due to it actually being caused by a component that Fuseki depends
upon but I have no expertise in Jetty/JSP/Servlets so I don't know against what project this
bug should actually be filed.

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