[
https://issues.apache.org/jira/browse/LUCENE-5899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Littlestar updated LUCENE-5899:
-------------------------------
Description:
User report of bizare ClassCastException when running some lucene code with the
(experimental) shenandoah GC
{code}
Exception in thread "Lucene Merge Thread #0"
org.apache.lucene.index.MergePolicy$MergeException:
java.lang.ClassCastException: org.apache.lucene.codecs.MappingMultiDocsEnum
cannot be cast to org.apache.lucene.index.DocsAndPositionsEnum
at
org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:545)
at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:518)
Caused by: java.lang.ClassCastException:
org.apache.lucene.codecs.MappingMultiDocsEnum cannot be cast to
org.apache.lucene.index.DocsAndPositionsEnum
at
org.apache.lucene.codecs.PostingsConsumer.merge(PostingsConsumer.java:127)
at org.apache.lucene.codecs.TermsConsumer.merge(TermsConsumer.java:110)
at org.apache.lucene.codecs.FieldsConsumer.merge(FieldsConsumer.java:72)
at
org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:399)
at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:112)
at
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4163)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3759)
at
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:405)
at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:482)
{code}
{code}
Exception in thread "Lucene Merge Thread #0"
org.apache.lucene.index.MergePolicy$MergeException: java.io.IOException:
Invalid vLong detected (negative values disallowed)
at
org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:545)
at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:518)
Caused by: java.io.IOException: Invalid vLong detected (negative values
disallowed)
at org.apache.lucene.store.DataInput.readVLong(DataInput.java:193)
at
org.apache.lucene.codecs.blocktree.BlockTreeTermsReader.<init>(BlockTreeTermsReader.java:169)
at
org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:441)
at
org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:197)
at
org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:254)
at
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:120)
at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:107)
at
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:143)
at
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:668)
at
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4099)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3759)
at
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:405)
at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:482)
{code}
was:
User report of bizare ClassCastException when running some lucene code with the
(experimental) shenandoah GC
{code}
Exception in thread "Lucene Merge Thread #0"
org.apache.lucene.index.MergePolicy$MergeException:
java.lang.ClassCastException: org.apache.lucene.codecs.MappingMultiDocsEnum
cannot be cast to org.apache.lucene.index.DocsAndPositionsEnum
at
org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:545)
at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:518)
Caused by: java.lang.ClassCastException:
org.apache.lucene.codecs.MappingMultiDocsEnum cannot be cast to
org.apache.lucene.index.DocsAndPositionsEnum
at
org.apache.lucene.codecs.PostingsConsumer.merge(PostingsConsumer.java:127)
at org.apache.lucene.codecs.TermsConsumer.merge(TermsConsumer.java:110)
at org.apache.lucene.codecs.FieldsConsumer.merge(FieldsConsumer.java:72)
at
org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:399)
at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:112)
at
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4163)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3759)
at
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:405)
at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:482)
{code}
> shenandoah GC can cause "ClassCastException:
> org.apache.lucene.codecs.MappingMultiDocsEnum cannot be cast to
> org.apache.lucene.index.DocsAndPositionsEnum"
> ----------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-5899
> URL: https://issues.apache.org/jira/browse/LUCENE-5899
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/codecs
> Affects Versions: 4.9
> Environment: I test lucene on shenandoah with big memory +
> bigdata(32g, 128g).
> http://openjdk.java.net/jeps/189
> http://icedtea.classpath.org/hg/shenandoah/
> Reporter: Littlestar
> Priority: Minor
>
> User report of bizare ClassCastException when running some lucene code with
> the (experimental) shenandoah GC
> {code}
> Exception in thread "Lucene Merge Thread #0"
> org.apache.lucene.index.MergePolicy$MergeException:
> java.lang.ClassCastException: org.apache.lucene.codecs.MappingMultiDocsEnum
> cannot be cast to org.apache.lucene.index.DocsAndPositionsEnum
> at
> org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:545)
> at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:518)
> Caused by: java.lang.ClassCastException:
> org.apache.lucene.codecs.MappingMultiDocsEnum cannot be cast to
> org.apache.lucene.index.DocsAndPositionsEnum
> at
> org.apache.lucene.codecs.PostingsConsumer.merge(PostingsConsumer.java:127)
> at org.apache.lucene.codecs.TermsConsumer.merge(TermsConsumer.java:110)
> at org.apache.lucene.codecs.FieldsConsumer.merge(FieldsConsumer.java:72)
> at
> org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:399)
> at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:112)
> at
> org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4163)
> at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3759)
> at
> org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:405)
> at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:482)
> {code}
> {code}
> Exception in thread "Lucene Merge Thread #0"
> org.apache.lucene.index.MergePolicy$MergeException: java.io.IOException:
> Invalid vLong detected (negative values disallowed)
> at
> org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:545)
> at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:518)
> Caused by: java.io.IOException: Invalid vLong detected (negative values
> disallowed)
> at org.apache.lucene.store.DataInput.readVLong(DataInput.java:193)
> at
> org.apache.lucene.codecs.blocktree.BlockTreeTermsReader.<init>(BlockTreeTermsReader.java:169)
> at
> org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:441)
> at
> org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:197)
> at
> org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:254)
> at
> org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:120)
> at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:107)
> at
> org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:143)
> at
> org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:668)
> at
> org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4099)
> at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3759)
> at
> org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:405)
> at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:482)
> {code}
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