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From "Simon Willnauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4547) DocValues field broken on large indexes
Date Mon, 19 Nov 2012 17:02:03 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13500377#comment-13500377
] 

Simon Willnauer commented on LUCENE-4547:
-----------------------------------------

Just an idea though... while we are on it should we maybe add a 4th type that allows multiple
values. that way we can just pull DV from any field and uninvert if needed?
                
> DocValues field broken on large indexes
> ---------------------------------------
>
>                 Key: LUCENE-4547
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4547
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Robert Muir
>            Priority: Blocker
>             Fix For: 4.1
>
>         Attachments: test.patch
>
>
> I tried to write a test to sanity check LUCENE-4536 (first running against svn revision
1406416, before the change).
> But i found docvalues is already broken here for large indexes that have a PackedLongDocValues
field:
> {code}
> final int numDocs = 500000000;
> for (int i = 0; i < numDocs; ++i) {
>   if (i == 0) {
>     field.setLongValue(0L); // force > 32bit deltas
>   } else {
>     field.setLongValue(1<<33L); 
>   }
>   w.addDocument(doc);
> }
> w.forceMerge(1);
> w.close();
> dir.close(); // checkindex
> {code}
> {noformat}
> [junit4:junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread
#0,6,TGRP-Test2GBDocValues]
> [junit4:junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.lang.ArrayIndexOutOfBoundsException:
-65536
> [junit4:junit4]   2> 	at __randomizedtesting.SeedInfo.seed([5DC54DB14FA5979]:0)
> [junit4:junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:535)
> [junit4:junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:508)
> [junit4:junit4]   2> Caused by: java.lang.ArrayIndexOutOfBoundsException: -65536
> [junit4:junit4]   2> 	at org.apache.lucene.util.ByteBlockPool.deref(ByteBlockPool.java:305)
> [junit4:junit4]   2> 	at org.apache.lucene.codecs.lucene40.values.FixedStraightBytesImpl$FixedBytesWriterBase.set(FixedStraightBytesImpl.java:115)
> [junit4:junit4]   2> 	at org.apache.lucene.codecs.lucene40.values.PackedIntValues$PackedIntsWriter.writePackedInts(PackedIntValues.java:109)
> [junit4:junit4]   2> 	at org.apache.lucene.codecs.lucene40.values.PackedIntValues$PackedIntsWriter.finish(PackedIntValues.java:80)
> [junit4:junit4]   2> 	at org.apache.lucene.codecs.DocValuesConsumer.merge(DocValuesConsumer.java:130)
> [junit4:junit4]   2> 	at org.apache.lucene.codecs.PerDocConsumer.merge(PerDocConsumer.java:65)
> {noformat}

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