Support Regarding Unknown Error Post Update from 0.8.2-full -> 0.8.2.1-full

[Keegan-Vaz]

Grobid version

0.8.2.1-full

Operating System and architecture (arm64, amd64, x86, etc.)

No response

What is your Java version

No response

Log and information

ERROR [2026-02-03 00:16:55,261] org.grobid.service.process.GrobidRestProcessFiles: An unexpected exception occurs.

! org.grobid.core.exceptions.GrobidException: [TIMEOUT] PDF to XML conversion timed out

! at org.grobid.core.document.DocumentSource.processPdfaltoServerMode(DocumentSource.java:242)

! at org.grobid.core.document.DocumentSource.pdfalto(DocumentSource.java:151)

! at org.grobid.core.document.DocumentSource.fromPdf(DocumentSource.java:64)

! at org.grobid.core.engines.FullTextParser.processing(FullTextParser.java:100)

! at org.grobid.core.engines.Engine.fullTextToTEIDoc(Engine.java:605)

! at org.grobid.core.engines.Engine.fullTextToTEI(Engine.java:594)

! at org.grobid.service.process.GrobidRestProcessFiles.processFulltextDocument(GrobidRestProcessFiles.java:351)

! at org.grobid.service.GrobidRestService.processFulltext(GrobidRestService.java:338)

! at org.grobid.service.GrobidRestService.processFulltextDocument_post(GrobidRestService.java:268)

! at jdk.internal.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)

! at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

! at java.base/java.lang.reflect.Method.invoke(Method.java:569)

! at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)

! at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:134)

! at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:177)

! at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:176)

! at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:81)

! at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:478)

! at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:400)

! at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:81)

! at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:256)

! at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)

! at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244)

! at org.glassfish.jersey.internal.Errors.process(Errors.java:292)

! at org.glassfish.jersey.internal.Errors.process(Errors.java:274)

! at org.glassfish.jersey.internal.Errors.process(Errors.java:244)

! at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265)

! at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:235)

Further information

No response

[Keegan-Vaz]

Hey,
I have been noticing this error very frequently in the docker container post the upgrade. Can you give me some context as to what has been failing?

Thanks.

[Keegan-Vaz]

ERROR [2026-02-03 00:22:13,504] org.grobid.service.process.GrobidRestProcessFiles: An unexpected exception occurs. 

! org.grobid.core.exceptions.GrobidException: [NO_BLOCKS] PDF parsing resulted in empty content

! at org.grobid.core.document.Document.addTokenizedDocument(Document.java:414)

! at org.grobid.core.engines.Segmentation.processing(Segmentation.java:101)

! at org.grobid.core.engines.FullTextParser.processing(FullTextParser.java:157)

! at org.grobid.core.engines.FullTextParser.processing(FullTextParser.java:103)

! at org.grobid.core.engines.Engine.fullTextToTEIDoc(Engine.java:605)

! at org.grobid.core.engines.Engine.fullTextToTEI(Engine.java:594)

! at org.grobid.service.process.GrobidRestProcessFiles.processFulltextDocument(GrobidRestProcessFiles.java:351)

! at org.grobid.service.GrobidRestService.processFulltext(GrobidRestService.java:338)

! at org.grobid.service.GrobidRestService.processFulltextDocument_post(GrobidRestService.java:268)

! at jdk.internal.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)

! at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

! at java.base/java.lang.reflect.Method.invoke(Method.java:569)

! at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)

! at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:134)

! at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:177)

! at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:176)

! at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:81)

! at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:478)

! at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:400)

! at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:81)

! at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:256)

! at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)

! at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265)

! at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:235)

! at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:684)

! at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:394)

! at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:346)

! at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:358)

! at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:311)

! at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:205)

! at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764)

! at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1665)

! at io.dropwizard.servlets.ThreadNameFilter.doFilter(ThreadNameFilter.java:36)

! at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)

! at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)

! at io.dropwizard.jersey.filter.AllowedMethodsFilter.handle(AllowedMethodsFilter.java:46)

! at io.dropwizard.jersey.filter.AllowedMethodsFilter.doFilter(AllowedMethodsFilter.java:40)

! at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)

! at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)

! at org.eclipse.jetty.servlets.CrossOriginFilter.handle(CrossOriginFilter.java:313)

! at org.eclipse.jetty.servlets.CrossOriginFilter.doFilter(CrossOriginFilter.java:267)

! at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)

! at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)

! at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:89)

! at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:121)

! at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:133)

! at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)

! at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)

! at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)

! at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)

! at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1382)

! at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)

! at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)

! at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)

! at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1304)

! at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)

! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)

! at io.dropwizard.metrics.jetty11.InstrumentedHandler.handle(InstrumentedHandler.java:307)

! at io.dropwizard.jetty.RoutingHandler.handle(RoutingHandler.java:52)

! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)

! at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:822)

! at io.dropwizard.jetty.ZipExceptionHandlingGzipHandler.handle(ZipExceptionHandlingGzipHandler.java:26)

! at org.eclipse.jetty.server.handler.StatisticsHandler.handle(StatisticsHandler.java:173)

! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)

! at org.eclipse.jetty.server.Server.handle(Server.java:563)

! at org.eclipse.jetty.server.HttpChannel.lambda$handle$0(HttpChannel.java:505)

! at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:762)

! at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:497)

! at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:282)

! at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:314)

! at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)

! at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)

! at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:416)

! at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:385)

! at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:272)

! at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.lambda$new$0(AdaptiveExecutionStrategy.java:140)

! at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:411)

! at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:936)

! at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1080)
! at java.base/java.lang.Thread.run(Thread.java:840)

[lfoppiano]

@Keegan-Vaz thanks for reaching out.

The 0.8.2.1 is just an update of the base docker image, nothing else has changed. It was released because I could not build anymore docker images based on this grobid. See more details here: #1349
There is absolutely no difference with the 0.8.2.

Now, see my comments about the errors:

1. ! org.grobid.core.exceptions.GrobidException: [TIMEOUT] PDF to XML conversion timed out: The pdf took too long to be converted by the underlying machinery. How many pages was the document you tried to process?
2. ! org.grobid.core.exceptions.GrobidException: [NO_BLOCKS] PDF parsing resulted in empty content: The pdf you sent did not have any text, it was an "image pdf" containing only images.

The errors are mapped to the code 500 which may mislead in thinking there is a failure inside Grobid, in fact except for the [GENERAL] error, they are due to the pdf jungle. More details on the errors here: https://grobid.readthedocs.io/en/latest/Grobid-service/#errors-handling