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  1. Blazegraph (by SYSTAP)
  2. BLZG-1373

Formatting error in EXPLAIN XHTML output?

    Details

    • Type: Bug
    • Status: Done
    • Priority: Medium
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: BLAZEGRAPH_RELEASE_1_5_2
    • Component/s: None
    • Labels:
      None

      Description

      PREFIX ub: <http://www.lehigh.edu/~zhp2/2004/0401/univ-bench.owl#>
      SELECT ?X ?Y ?Z
      WHERE
      {?X rdf:type ub:GraduateStudent .
        ?Y rdf:type ub:University .
        ?Z rdf:type ub:Department .
        ?X ub:memberOf ?Z .
        ?Z ub:subOrganizationOf ?Y .
        ?X ub:undergraduateDegreeFrom ?Y}
      java.util.concurrent.ExecutionException: java.lang.AssertionError
      	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
      	at java.util.concurrent.FutureTask.get(FutureTask.java:188)
      	at com.bigdata.rdf.sail.webapp.BigdataServlet.submitApiTask(BigdataServlet.java:281)
      	at com.bigdata.rdf.sail.webapp.QueryServlet.doSparqlQuery(QueryServlet.java:580)
      	at com.bigdata.rdf.sail.webapp.QueryServlet.doPost(QueryServlet.java:233)
      	at com.bigdata.rdf.sail.webapp.RESTServlet.doPost(RESTServlet.java:247)
      	at com.bigdata.rdf.sail.webapp.MultiTenancyServlet.doPost(MultiTenancyServlet.java:138)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
      	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:769)
      	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
      	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
      	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
      	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1125)
      	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
      	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
      	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1059)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
      	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
      	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
      	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
      	at org.eclipse.jetty.server.Server.handle(Server.java:497)
      	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
      	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:248)
      	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
      	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:610)
      	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:539)
      	at java.lang.Thread.run(Thread.java:745)
      Caused by: java.lang.AssertionError
      	at com.bigdata.rdf.sail.webapp.XMLBuilder$Node.close(XMLBuilder.java:388)
      	at com.bigdata.rdf.sail.webapp.XMLBuilder$Node.close(XMLBuilder.java:350)
      	at com.bigdata.rdf.sail.webapp.XMLBuilder.closeAll(XMLBuilder.java:167)
      	at com.bigdata.rdf.sail.webapp.QueryServlet.explainQuery(QueryServlet.java:1221)
      	at com.bigdata.rdf.sail.webapp.QueryServlet.access$1(QueryServlet.java:860)
      	at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlQueryTask.call(QueryServlet.java:697)
      	at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlQueryTask.call(QueryServlet.java:1)
      	at com.bigdata.rdf.task.ApiTaskForIndexManager.call(ApiTaskForIndexManager.java:68)
      	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	... 1 more
      

        Activity

        Hide
        bryanthompson bryanthompson added a comment -

        Michael, I found this exception on my console when running the EXPLAIN in the master with the recent changes for additional statistics on the optimizers.

        Show
        bryanthompson bryanthompson added a comment - Michael, I found this exception on my console when running the EXPLAIN in the master with the recent changes for additional statistics on the optimizers.
        Hide
        michaelschmidt michaelschmidt added a comment -

        Bryan, observed this once at the benchmark server, but I'm not able to reproduce it locally. Is this reproducible or just popping up from time to time?

        Show
        michaelschmidt michaelschmidt added a comment - Bryan, observed this once at the benchmark server, but I'm not able to reproduce it locally. Is this reproducible or just popping up from time to time?
        Hide
        bryanthompson bryanthompson added a comment -

        I was able to reproduce the exception by running that query again (on the same pre-existing instance that was populated with the data).

        Show
        bryanthompson bryanthompson added a comment - I was able to reproduce the exception by running that query again (on the same pre-existing instance that was populated with the data).
        Hide
        michaelschmidt michaelschmidt added a comment -

        This was a small problem with the generated HTML structure. Fixed, see https://github.com/SYSTAP/bigdata/pull/104. Will merge once PR runs through.

        Show
        michaelschmidt michaelschmidt added a comment - This was a small problem with the generated HTML structure. Fixed, see https://github.com/SYSTAP/bigdata/pull/104 . Will merge once PR runs through.
        Hide
        michaelschmidt michaelschmidt added a comment -

        minor issue, resolved in and merged into master

        Show
        michaelschmidt michaelschmidt added a comment - minor issue, resolved in and merged into master

          People

          • Assignee:
            michaelschmidt michaelschmidt
            Reporter:
            bryanthompson bryanthompson
          • Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved: