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https://issues.apache.org/jira/browse/LUCENE-6969?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Wang closed LUCENE-6969.
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Resolution: Invalid
False alarm. My index had multiple segments, and the docid sits on the border,
causing the exception.
> Exception in reading SortedDocValues
> ------------------------------------
>
> Key: LUCENE-6969
> URL: https://issues.apache.org/jira/browse/LUCENE-6969
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/index
> Affects Versions: 5.4
> Reporter: John Wang
>
> While reading SortedDocValues, I am getting the following stacktrace:
> {noformat}
> Exception in thread "main" java.lang.IndexOutOfBoundsException
> at java.nio.Buffer.checkIndex(Buffer.java:546)
> at java.nio.DirectByteBuffer.getShort(DirectByteBuffer.java:590)
> at
> org.apache.lucene.store.ByteBufferIndexInput$SingleBufferImpl.readShort(ByteBufferIndexInput.java:443)
> at
> org.apache.lucene.util.packed.DirectReader$DirectPackedReader16.get(DirectReader.java:185)
> at
> org.apache.lucene.codecs.lucene54.Lucene54DocValuesProducer$2.get(Lucene54DocValuesProducer.java:502)
> at org.apache.lucene.util.LongValues.get(LongValues.java:45)
> at
> org.apache.lucene.codecs.lucene54.Lucene54DocValuesProducer$7.getOrd(Lucene54DocValuesProducer.java:800)
> {noformat}
> I am not able to reproduce with a unit test. However, I am able to
> consistently reproduce it with my data. I think this is some sort of
> off-by-one error caused with my index.
> I am happy to provide my index to help debug this offline.
> Here is the code snippet:
> {noformat}
> public static void main(String[] args) throws Exception {
> File idx = new File("/tmp/myidx");
> int id = 719265;
> Path idxPath = FileSystems.getDefault().getPath(idx.getAbsolutePath());
> FSDirectory dir = FSDirectory.open(idxPath);
> DirectoryReader dreader = DirectoryReader.open(dir);
> LeafReaderContext ctx = dreader.leaves().get(0);
>
> SortedDocValues docVal = ctx.reader().getSortedDocValues("host");
> int ord = docVal.getOrd(id);
> System.out.println("ord: " + ord);
>
> }
> {noformat}
> My index has 1 segment and 5M docs.
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