I am using the 4.7.0 ICU analyzer (via elastic search) and noticed this
exception in the logs. It's sporadic. Any ideas what is going on or if this
is already fixed:
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894)
at java.util.HashMap$KeyIterator.next(HashMap.java:928)
at
com.ibm.icu.text.RuleBasedBreakIterator.getEngineFor(RuleBasedBreakIterator.java:1011)
at
com.ibm.icu.text.RuleBasedBreakIterator.handleNext(RuleBasedBreakIterator.java:1085)
at
com.ibm.icu.text.RuleBasedBreakIterator.next(RuleBasedBreakIterator.java:449)
at
org.apache.lucene.analysis.icu.segmentation.BreakIteratorWrapper$RBBIWrapper.next(BreakIteratorWrapper.java:96)
at
org.apache.lucene.analysis.icu.segmentation.CompositeBreakIterator.next(CompositeBreakIterator.java:60)
at
org.apache.lucene.analysis.icu.segmentation.ICUTokenizer.incrementTokenBuffer(ICUTokenizer.java:212)
at
org.apache.lucene.analysis.icu.segmentation.ICUTokenizer.incrementToken(ICUTokenizer.java:106)
at
org.apache.lucene.analysis.icu.ICUNormalizer2Filter.incrementToken(ICUNormalizer2Filter.java:80)
at
org.apache.lucene.analysis.miscellaneous.KeywordMarkerFilter.incrementToken(KeywordMarkerFilter.java:45)
at
org.apache.lucene.analysis.util.FilteringTokenFilter.incrementToken(FilteringTokenFilter.java:82)
at
org.apache.lucene.analysis.en.EnglishPossessiveFilter.incrementToken(EnglishPossessiveFilter.java:57)
at
org.apache.lucene.analysis.util.ElisionFilter.incrementToken(ElisionFilter.java:52)
at
org.apache.lucene.analysis.icu.ICUNormalizer2Filter.incrementToken(ICUNormalizer2Filter.java:80)
at
org.apache.lucene.index.DocInverterPerField.processFields(DocInverterPerField.java:182)
at
org.apache.lucene.index.DocFieldProcessor.processDocument(DocFieldProcessor.java:248)
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.addDocument(IndexWriter.java:1204)
at
org.elasticsearch.index.engine.internal.InternalEngine.innerCreate(InternalEngine.java:451)
at
org.elasticsearch.index.engine.internal.InternalEngine.create(InternalEngine.java:382)
at
org.elasticsearch.index.shard.service.InternalIndexShard.create(InternalIndexShard.java:374)
at
org.elasticsearch.action.bulk.TransportShardBulkAction.shardIndexOperation(TransportShardBulkAction.java:431)
at
org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:160)
at
org.elasticsearch.action.support.replication.TransportShardReplicationOperationAction$AsyncShardOperationAction.performOnPrimary(TransportShardReplicationOperationAction.java:556)
at
org.elasticsearch.action.support.replication.TransportShardReplicationOperationAction$AsyncShardOperationAction$1.run(TransportShardReplicationOperationAction.java:426)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
