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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-2523) if index is too old you should hit an exception saying so
Date Sun, 18 Jul 2010 15:10:50 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2523?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Uwe Schindler updated LUCENE-2523:
----------------------------------

    Attachment: LUCENE-2523.patch

Added minimum version support to CodecUtil.

> if index is too old you should hit an exception saying so
> ---------------------------------------------------------
>
>                 Key: LUCENE-2523
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2523
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>            Reporter: Michael McCandless
>            Priority: Minor
>             Fix For: 4.0
>
>         Attachments: LUCENE-2523.patch, LUCENE-2523.patch, LUCENE-2523.patch
>
>
> If you create an index in 2.3.x (I used demo's IndexFiles) and then try to read it in
4.0.x (I used CheckIndex), you hit a confusing exception like this:
> {noformat}
> java.io.IOException: read past EOF
>         at org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:154)
>         at org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:39)
>         at org.apache.lucene.store.ChecksumIndexInput.readByte(ChecksumIndexInput.java:40)
>         at org.apache.lucene.store.DataInput.readInt(DataInput.java:76)
>         at org.apache.lucene.index.SegmentInfo.<init>(SegmentInfo.java:171)
>         at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:230)
>         at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:269)
>         at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:649)
>         at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:484)
>         at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:265)
>         at org.apache.lucene.index.CheckIndex.checkIndex(CheckIndex.java:308)
>         at org.apache.lucene.index.CheckIndex.checkIndex(CheckIndex.java:287)
>         at org.apache.lucene.index.CheckIndex.main(CheckIndex.java:930)
> {noformat}
> I think instead we should throw an IndexTooOldException or something like that?

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