Hi there,
I have an application which gathers patterns from newsfeeds and stores them
in Neo4J ( see datamonkees.wpengine.com for details ). The application uses
"merge" to create nodes, so that a counter can get updated when the same
patterns recur.
My setup is Neo4J 2.1.0 on Ubuntu 13.10, Oracle 1.7 JVM with 2048M. I've
followed the manual's suggestions on open files for Linux. I get the red
unplugged band as well. Here's an excerpt from the log.
Jun 24, 2014 3:59:51 PM
com.sun.jersey.server.impl.application.WebApplicationImpl _handleRequest
SEVERE: The response of the WebApplicationException cannot be utilized as
the response is already committed. Re-throwing to the HTTP container
javax.ws.rs.WebApplicationException: javax.ws.rs.WebApplicationException:
org.eclipse.jetty.io.EofException
at
org.neo4j.server.rest.repr.OutputFormat$1.write(OutputFormat.java:178)
at
com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:71)
at
com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:57)
at
com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:306)
at
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1437)
at
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349)
at
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339)
at
com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
at
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)
at
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:699)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:698)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1506)
at
org.neo4j.server.rest.security.SecurityFilter.doFilter(SecurityFilter.java:112)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1477)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:503)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:211)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1096)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:432)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:175)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1030)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:136)
at
org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:445)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:268)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:229)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.run(AbstractConnection.java:358)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:601)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:532)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.ws.rs.WebApplicationException:
org.eclipse.jetty.io.EofException
at
org.neo4j.server.rest.repr.formats.StreamingJsonFormat$StreamingListWriter.writeValue(StreamingJsonFormat.java:316)
at org.neo4j.server.rest.repr.ListWriter.writeValue(ListWriter.java:75)
at
org.neo4j.server.rest.repr.ValueRepresentation.addTo(ValueRepresentation.java:49)
at
org.neo4j.server.rest.repr.ListRepresentation.serialize(ListRepresentation.java:65)
at org.neo4j.server.rest.repr.Serializer.serialize(Serializer.java:75)
at
org.neo4j.server.rest.repr.MappingSerializer.putList(MappingSerializer.java:61)
at
org.neo4j.server.webadmin.rest.representations.RrdDataRepresentation$1.serialize(RrdDataRepresentation.java:68)
at org.neo4j.server.rest.repr.Serializer.serialize(Serializer.java:40)
at
org.neo4j.server.rest.repr.MappingSerializer.putMapping(MappingSerializer.java:56)
at
org.neo4j.server.rest.repr.MappingRepresentation.putTo(MappingRepresentation.java:57)
at
org.neo4j.server.rest.repr.ObjectRepresentation$PropertyGetter.putTo(ObjectRepresentation.java:133)
at
org.neo4j.server.rest.repr.ObjectRepresentation.serialize(ObjectRepresentation.java:144)
at
org.neo4j.server.rest.repr.MappingRepresentation.serialize(MappingRepresentation.java:41)
at
org.neo4j.server.rest.repr.OutputFormat$1.write(OutputFormat.java:164)
... 30 more
Caused by: org.eclipse.jetty.io.EofException
at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:186)
at
org.eclipse.jetty.io.WriteFlusher.completeWrite(WriteFlusher.java:400)
at
org.eclipse.jetty.io.SelectChannelEndPoint.onSelected(SelectChannelEndPoint.java:111)
at
org.eclipse.jetty.io.SelectorManager$ManagedSelector.processKey(SelectorManager.java:498)
at
org.eclipse.jetty.io.SelectorManager$ManagedSelector.select(SelectorManager.java:455)
at
org.eclipse.jetty.io.SelectorManager$ManagedSelector.run(SelectorManager.java:420)
... 3 more
Caused by: java.io.IOException: Broken pipe
at sun.nio.ch.FileDispatcherImpl.write0(Native Method)
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
at sun.nio.ch.IOUtil.write(IOUtil.java:65)
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:487)
at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:165)
... 8 more
Googling shows that Mark Needham has already encountered this issue, cf.
http://www.markhneedham.com/blog/2014/01/27/neo4j-org-eclipse-jetty-io-eofexception-caused-by-java-io-ioexception-broken-pipe/
What's the recommended workaround?
Interestingly if I store on a graphenedb Community 2.0.3 database the
problem is not immediately apparent ( perhaps it will come as that database
grows in size ). Just a thought, could this be Ubuntu 13.10 related?
Thanks for your time,
Best wishes,
Chris
On Monday, June 23, 2014 8:06:23 AM UTC+1, Michael Hunger wrote:
>
> What is your server configuration? I think your server is just quite busy
> loading the data (and cleaning up memory), and stops responding to the
> web-client which then shows this message.
>
> Heap-Memory (conf/neo4j-wrapper.conf), Mmio-config (conf/neo4j.properties)?
>
>
> Am 23.06.2014 um 08:51 schrieb Pavan Kumar <[email protected]
> <javascript:>>:
>
> Hi,
> I am running LOAD CSV on neo4j V 2.1.2
> I am trying to import CSV file, While the query is executing, I am getting
> the following error
>
> Disconnected from Neo4j. Please check if the cord is unplugged.
>
> I am running on defalut port number.
>
> Any solution?
> --
> Thanks & Regards,
> Pavan
>
>
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