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Posted to dev@lucene.apache.org by "Uwe Schindler (JIRA)" <ji...@apache.org> on 2010/05/13 12:12:42 UTC
[jira] Closed: (LUCENE-2448) Exception in thread "main"
org.apache.lucene.index.CorruptIndexException: Incompatible format version:
2 expected 1 or lower
[ https://issues.apache.org/jira/browse/LUCENE-2448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Uwe Schindler closed LUCENE-2448.
---------------------------------
Resolution: Invalid
This is not a bug.
Lucene 3.0 changed the stored fields to no longer support compressed fields. To mark an already "converted" (removed compression) stored fields file, the version is upgraded to the 3.0 one. Lucene 2.9 is then no longer able to read the index because of the upgraded version.
Theoretically it could - when i implemented the stored field upgrade with Michael Busch, I thought about adding support for the higher version as an "alias" to 2.9, but the release schedule for 2.9 was too fast. The best solution would be to force 2.9 to *always* write stored field segments with the old version, but 2.9 should also be able to *readonly* the new version signature.
> Exception in thread "main" org.apache.lucene.index.CorruptIndexException: Incompatible format version: 2 expected 1 or lower
> ----------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-2448
> URL: https://issues.apache.org/jira/browse/LUCENE-2448
> Project: Lucene - Java
> Issue Type: Bug
> Affects Versions: 2.9.1
> Environment: Windows Vista Home Premium, Lucene version 2.9.1, JRE6
> Reporter: Bill Herbert
> Attachments: _0.cfs, _0.cfx, AddressBookSearcher.java, segments.gen, segments_2
>
>
> The attached code is indended to search the contents of an indexed file. Upon execution, it generates the following stacktrace. I will appreciate any assistance in interpreting and correcting this error. Also, how should I address the warning about the depreciated API.
> Thanks, Bill
> C:\lucene-3.0.1\src>javac AddressBookSearcher.java
> Note: AddressBookSearcher.java uses or overrides a deprecated API.
> Note: Recompile with -Xlint:deprecation for details.
> C:\lucene-3.0.1\src>java AddressBookSearcher
> Exception in thread "main" org.apache.lucene.index.CorruptIndexException: Incomp
> atible format version: 2 expected 1 or lower
> at org.apache.lucene.index.FieldsReader.<init>(FieldsReader.java:117)
> at org.apache.lucene.index.SegmentReader$CoreReaders.openDocStores(Segme
> ntReader.java:277)
> at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:640)
> at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:599)
> at org.apache.lucene.index.DirectoryReader.<init>(DirectoryReader.java:1
> 04)
> at org.apache.lucene.index.DirectoryReader$1.doBody(DirectoryReader.java
> :76)
> at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfo
> s.java:704)
> at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:69)
> at org.apache.lucene.index.IndexReader.open(IndexReader.java:476)
> at org.apache.lucene.index.IndexReader.open(IndexReader.java:243)
> at org.apache.lucene.index.IndexReader.open(IndexReader.java:222)
> at org.apache.lucene.search.IndexSearcher.<init>(IndexSearcher.java:62)
> at AddressBookSearcher.main(AddressBookSearcher.java:22)
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