thanks Andy I will stick with jena-fuseki-0.2.2 for now, it seems subjectively to be faster as well.
I use the fuseki installation as a data provider for web frontends. the particular describe query that breaks works fine with the fuseki server sparql form but does not with the specific http client request. I will keep your comments in mind do some further tests with jena-fuseki-0.2.4 in the sandbox On Thu, Oct 4, 2012 at 6:56 AM, Andy Seaborne <a...@apache.org> wrote: > On 03/10/12 21:21, Marco Neumann wrote: >> >> we've upgraded a machine from jena-fuseki-0.2.2 to jena-fuseki-0.2.4 >> and now receive "Broken Pipe" errors on some simple describe queries >> with jdk1.6.0_26 and a TDB backend >> >> any suggestions? > > > It's not clear to me what's going on. If the request asks for gzip'ed > results, then Jetty closes the gzip stream quite early but I don't see why > that is a problem - the code is much like the result set case. > > Presumably, the server continues. The output looks to come from internal > debugging but it should not affect anything after it cleans up (by ignoring > the problem). > > What's the client calling code? Could the client have gone away before the > end of results were read? Is it asking/allowing gzip results? > > A test case to reproduce this would be good. Does it happen every describe? > > (we should probably ignore IOExceptions, or at least only lightly log them, > at this point because they are usually things like client leaving early or > low-level network faults) > > Andy > > >> >> org.eclipse.jetty.io.EofException >> at >> org.eclipse.jetty.http.HttpGenerator.flushBuffer(HttpGenerator.java:921) >> at >> org.eclipse.jetty.http.AbstractGenerator.flush(AbstractGenerator.java:452) >> at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:94) >> at >> org.eclipse.jetty.server.HttpConnection$Output.flush(HttpConnection.java:1010) >> at >> org.apache.jena.fuseki.servlets.ResponseModel.doResponseModel(ResponseModel.java:124) >> at >> org.apache.jena.fuseki.servlets.SPARQL_Query.sendResults(SPARQL_Query.java:327) > > >> Caused by: java.io.IOException: Broken pipe >> at sun.nio.ch.FileDispatcher.write0(Native Method) >> at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29) >> at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:72) >> at sun.nio.ch.IOUtil.write(IOUtil.java:28) >> at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:334) >> at >> org.eclipse.jetty.io.nio.ChannelEndPoint.flush(ChannelEndPoint.java:247) >> at >> org.eclipse.jetty.server.nio.BlockingChannelConnector$BlockingChannelEndPoint.flush(BlockingChannelConnector.java:248) >> at >> org.eclipse.jetty.http.HttpGenerator.flushBuffer(HttpGenerator.java:860) >> ... 35 more > > -- --- Marco Neumann KONA Join us at SemTech Biz in New York City October 15-17, 2012 and save 15% with code STMN http://www.lotico.com/evt/SemTechBizNYC2012
