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From "Trejkaz (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-1262) IndexOutOfBoundsException from FieldsReader after problem reading the index
Date Thu, 10 Apr 2008 00:30:04 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-1262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Trejkaz updated LUCENE-1262:
----------------------------

    Affects Version/s:     (was: 2.1)
                       2.3.1
              Summary: IndexOutOfBoundsException from FieldsReader after problem reading the
index  (was: NullPointerException from FieldsReader after problem reading the index)

I managed to reproduce the problem as-is under version 2.2.

For 2.3 the problem has changed -- instead of a NullPointerException it is now an IndexOutOfBoundsException:

Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 52, Size: 34
        at java.util.ArrayList.RangeCheck(ArrayList.java:547)
        at java.util.ArrayList.get(ArrayList.java:322)
        at org.apache.lucene.index.FieldInfos.fieldInfo(FieldInfos.java:260)
        at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:154)
        at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:659)
        at org.apache.lucene.index.IndexReader.document(IndexReader.java:525)
        at org.apache.lucene.search.IndexSearcher.doc(IndexSearcher.java:92)
        at org.apache.lucene.search.Hits.doc(Hits.java:167)
        at Test.main(Test.java:24)

Will attach my test program in a moment.


> IndexOutOfBoundsException from FieldsReader after problem reading the index
> ---------------------------------------------------------------------------
>
>                 Key: LUCENE-1262
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1262
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>    Affects Versions: 2.3.1
>            Reporter: Trejkaz
>
> There is a situation where there is an IOException reading from Hits, and then the next
time you get a NullPointerException instead of an IOException.
> Example stack traces:
> java.io.IOException: The specified network name is no longer available
> 	at java.io.RandomAccessFile.readBytes(Native Method)
> 	at java.io.RandomAccessFile.read(RandomAccessFile.java:322)
> 	at org.apache.lucene.store.FSIndexInput.readInternal(FSDirectory.java:536)
> 	at org.apache.lucene.store.BufferedIndexInput.readBytes(BufferedIndexInput.java:74)
> 	at org.apache.lucene.index.CompoundFileReader$CSIndexInput.readInternal(CompoundFileReader.java:220)
> 	at org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:93)
> 	at org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:34)
> 	at org.apache.lucene.store.IndexInput.readVInt(IndexInput.java:57)
> 	at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:88)
> 	at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:344)
> 	at org.apache.lucene.index.IndexReader.document(IndexReader.java:368)
> 	at org.apache.lucene.search.IndexSearcher.doc(IndexSearcher.java:84)
> 	at org.apache.lucene.search.Hits.doc(Hits.java:104)
> That error is fine.  The problem is the next call to doc generates:
> java.lang.NullPointerException
> 	at org.apache.lucene.index.FieldsReader.getIndexType(FieldsReader.java:280)
> 	at org.apache.lucene.index.FieldsReader.addField(FieldsReader.java:216)
> 	at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:101)
> 	at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:344)
> 	at org.apache.lucene.index.IndexReader.document(IndexReader.java:368)
> 	at org.apache.lucene.search.IndexSearcher.doc(IndexSearcher.java:84)
> 	at org.apache.lucene.search.Hits.doc(Hits.java:104)
> Presumably FieldsReader is caching partially-initialised data somewhere.  I would normally
expect the exact same IOException to be thrown for subsequent calls to the method.

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