17.06.2015 10:30:04.291 *WARN* [pool-6-thread-3] org.apache.jackrabbit.oak.plugins.index.AsyncIndexUpdate The async index update failed
org.apache.jackrabbit.oak.api.CommitFailedException: OakLucene0003: Failed to index the node /content/dam/example/de/investor_relations/documents/GV2005_de.pdf
        at org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexEditor.addOrUpdate(LuceneIndexEditor.java:273)
        at org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexEditor.leave(LuceneIndexEditor.java:176)
        at org.apache.jackrabbit.oak.spi.commit.CompositeEditor.leave(CompositeEditor.java:74)
        at org.apache.jackrabbit.oak.spi.commit.VisibleEditor.leave(VisibleEditor.java:63)
        at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeAdded(EditorDiff.java:130)
        at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstEmptyState(EmptyNodeState.java:161)
        at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:434)
        at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeAdded(EditorDiff.java:125)
        at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstEmptyState(EmptyNodeState.java:161)
        at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:434)
        at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeAdded(EditorDiff.java:125)
        at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstEmptyState(EmptyNodeState.java:161)
        at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:434)
        at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeAdded(EditorDiff.java:125)
        at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstEmptyState(EmptyNodeState.java:161)
        at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:434)
        at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeAdded(EditorDiff.java:125)
        at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstEmptyState(EmptyNodeState.java:161)
        at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:434)
        at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeAdded(EditorDiff.java:125)
        at org.apache.jackrabbit.oak.plugins.segment.MapRecord$2.childNodeAdded(MapRecord.java:397)
        at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:497)
        at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:394)
        at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583)
        at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148)
        at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:418)
        at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583)
        at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148)
        at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:487)
        at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583)
        at org.apache.jackrabbit.oak.spi.commit.EditorDiff.process(EditorDiff.java:52)
        at org.apache.jackrabbit.oak.plugins.index.AsyncIndexUpdate.updateIndex(AsyncIndexUpdate.java:367)
        at org.apache.jackrabbit.oak.plugins.index.AsyncIndexUpdate.run(AsyncIndexUpdate.java:312)
        at org.apache.sling.commons.scheduler.impl.QuartzJobExecutor.execute(QuartzJobExecutor.java:105)
        at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: DocValuesField ":dvjcr:content/metadata/prism:expirationDate" appears more than once in this document (only one value is allowed per field)
        at org.apache.lucene.index.NumericDocValuesWriter.addValue(NumericDocValuesWriter.java:54)
        at org.apache.lucene.index.DocValuesProcessor.addNumericField(DocValuesProcessor.java:153)
        at org.apache.lucene.index.DocValuesProcessor.addField(DocValuesProcessor.java:66)
        at org.apache.lucene.index.TwoStoredFieldsConsumers.addField(TwoStoredFieldsConsumers.java:36)
        at org.apache.lucene.index.DocFieldProcessor.processDocument(DocFieldProcessor.java:236)
        at org.apache.lucene.index.DocumentsWriterPerThread.updateDocument(DocumentsWriterPerThread.java:253)
        at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:455)
        at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1534)
        at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1507)
        at org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndexEditor.addOrUpdate(LuceneIndexEditor.java:266)
        ... 37 common frames omitted