Github user JPercivall commented on the issue:
https://github.com/apache/nifi/pull/556
The only relevant exception I saw processing the download folder was an xml
parse error related to a underlying limitation of Tika, no need to address:
2016-06-22 11:32:19,774 ERROR [Timer-Driven Process Thread-10]
o.a.n.p.media.ExtractMediaMetadata
ExtractMediaMetadata[id=1a1f93bd-5499-4ab4-8c86-7391f7aa1f19] Failed to extract
media metadata from
StandardFlowFileRecord[uuid=ea365723-636f-4fb7-b871-f14241d686f7,claim=StandardContentClaim
[resourceClaim=StandardResourceClaim[id=1466609517187-31, container=default,
section=31], offset=293539, length=888],offset=0,name=prelude.jspf,size=888]
due to org.apache.nifi.processor.exception.ProcessException: IOException thrown
from ExtractMediaMetadata[id=1a1f93bd-5499-4ab4-8c86-7391f7aa1f19]:
java.io.IOException: org.apache.tika.exception.TikaException: XML parse error:
org.apache.nifi.processor.exception.ProcessException: IOException thrown from
ExtractMediaMetadata[id=1a1f93bd-5499-4ab4-8c86-7391f7aa1f19]:
java.io.IOException: org.apache.tika.exception.TikaException: XML parse error
2016-06-22 11:32:19,776 ERROR [Timer-Driven Process Thread-10]
o.a.n.p.media.ExtractMediaMetadata
org.apache.nifi.processor.exception.ProcessException: IOException thrown
from ExtractMediaMetadata[id=1a1f93bd-5499-4ab4-8c86-7391f7aa1f19]:
java.io.IOException: org.apache.tika.exception.TikaException: XML parse error
at
org.apache.nifi.controller.repository.StandardProcessSession.read(StandardProcessSession.java:1873)
~[na:na]
at
org.apache.nifi.controller.repository.StandardProcessSession.read(StandardProcessSession.java:1822)
~[na:na]
at
org.apache.nifi.processors.media.ExtractMediaMetadata.onTrigger(ExtractMediaMetadata.java:211)
~[nifi-media-processors-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
at
org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
[nifi-api-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
at
org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1054)
[nifi-framework-core-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
at
org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:136)
[nifi-framework-core-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
at
org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47)
[nifi-framework-core-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
at
org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:127)
[nifi-framework-core-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[na:1.8.0_74]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
[na:1.8.0_74]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
[na:1.8.0_74]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
[na:1.8.0_74]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[na:1.8.0_74]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[na:1.8.0_74]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_74]
Caused by: java.io.IOException: org.apache.tika.exception.TikaException:
XML parse error
at
org.apache.nifi.processors.media.ExtractMediaMetadata$2.process(ExtractMediaMetadata.java:218)
~[nifi-media-processors-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
at
org.apache.nifi.controller.repository.StandardProcessSession.read(StandardProcessSession.java:1851)
~[na:na]
... 14 common frames omitted
Caused by: org.apache.tika.exception.TikaException: XML parse error
at org.apache.tika.parser.xml.XMLParser.parse(XMLParser.java:78)
~[tika-parsers-1.8.jar:1.8]
at
org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:281)
~[tika-core-1.8.jar:1.8]
at
org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:281)
~[tika-core-1.8.jar:1.8]
at
org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:120)
~[tika-core-1.8.jar:1.8]
at
org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:136)
~[tika-core-1.8.jar:1.8]
at
org.apache.nifi.processors.media.ExtractMediaMetadata.tika_parse(ExtractMediaMetadata.java:245)
~[nifi-media-processors-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
at
org.apache.nifi.processors.media.ExtractMediaMetadata.access$000(ExtractMediaMetadata.java:74)
~[nifi-media-processors-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
at
org.apache.nifi.processors.media.ExtractMediaMetadata$2.process(ExtractMediaMetadata.java:215)
~[nifi-media-processors-0.7.0-SNAPSHOT.jar:0.7.0-SNAPSHOT]
... 15 common frames omitted
Caused by: org.xml.sax.SAXParseException: XML document structures must
start and end within the same entity.
at
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:400)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1437)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.endEntity(XMLDocumentFragmentScannerImpl.java:904)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.endEntity(XMLDocumentScannerImpl.java:563)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLEntityManager.endEntity(XMLEntityManager.java:1399)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.load(XMLEntityScanner.java:1814)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.skipChar(XMLEntityScanner.java:1463)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2824)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:118)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643)
~[na:1.8.0_74]
at
com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:327)
~[na:1.8.0_74]
at javax.xml.parsers.SAXParser.parse(SAXParser.java:195)
~[na:1.8.0_74]
at org.apache.tika.parser.xml.XMLParser.parse(XMLParser.java:72)
~[tika-parsers-1.8.jar:1.8]
... 22 common frames omitted
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