On Linux Fuseki will create user owned temporary files that block other users
from running Fuseki instances even after the Fuseki instance has been stopped
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Key: JENA-179
URL: https://issues.apache.org/jira/browse/JENA-179
Project: Jena
Issue Type: Bug
Components: Fuseki
Environment: SUSE Linux 11
Reporter: Rob Vesse
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 correctly.
Going to the control panel will produce the following trace:
Error 500: /tmp/org/apache/jsp/control_002dpanel_jsp.java (Permission denied)
java.io.FileNotFoundException: /tmp/org/apache/jsp/control_002dpanel_jsp.java
(Permission denied)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:179)
at java.io.FileOutputStream.<init>(FileOutputStream.java:70)
at
org.apache.jasper.compiler.JDTJavaCompiler.getJavaWriter(JDTJavaCompiler.java:149)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:188)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:435)
at
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:608)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:360)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:534)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:475)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:224)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:921)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:403)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:184)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:856)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:114)
at org.eclipse.jetty.server.Server.handle(Server.java:348)
at
org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:596)
at
org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:1052)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:590)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:212)
at
org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:426)
at
org.eclipse.jetty.server.nio.BlockingChannelConnector$BlockingChannelEndPoint.run(BlockingChannelConnector.java:292)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:450)
at java.lang.Thread.run(Thread.java:619)
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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