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Posted to dev@lucene.apache.org by "Elliot Metsger (JIRA)" <ji...@apache.org> on 2009/08/27 22:33:01 UTC
[jira] Commented: (LUCENE-1521) "fdx size mismatch" exception in
StoredFieldsWriter.closeDocStore() when closing index with 500M documents
[ https://issues.apache.org/jira/browse/LUCENE-1521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12748555#action_12748555 ]
Elliot Metsger commented on LUCENE-1521:
----------------------------------------
I received this on 2.4.1, not sure if it is this bug or not:
Exception in thread "main" java.lang.RuntimeException: after flush: fdx size mismatch: 10 docs vs 0 length in bytes of _sl3.fdx
at org.apache.lucene.index.StoredFieldsWriter.closeDocStore(StoredFieldsWriter.java:94)
at org.apache.lucene.index.DocFieldConsumers.closeDocStore(DocFieldConsumers.java:83)
at org.apache.lucene.index.DocFieldProcessor.closeDocStore(DocFieldProcessor.java:47)
at org.apache.lucene.index.DocumentsWriter.closeDocStore(DocumentsWriter.java:367)
at org.apache.lucene.index.DocumentsWriter.flush(DocumentsWriter.java:567)
at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3540)
at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3450)
at org.apache.lucene.index.IndexWriter.prepareCommit(IndexWriter.java:3363)
at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:3408)
at edu.jhu.library.ivoa.VOImageAccessUrlDownload.go(VOImageAccessUrlDownload.java:357)
at edu.jhu.library.ivoa.VOImageAccessUrlDownload.main(VOImageAccessUrlDownload.java:103)
> "fdx size mismatch" exception in StoredFieldsWriter.closeDocStore() when closing index with 500M documents
> ----------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-1521
> URL: https://issues.apache.org/jira/browse/LUCENE-1521
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 2.4
> Reporter: Shon Vella
> Assignee: Michael McCandless
> Priority: Critical
> Fix For: 2.4.1, 2.9
>
>
> When closing index that contains 500,000,000 randomly generated documents, an exception is thrown:
> java.lang.RuntimeException: after flush: fdx size mismatch: 500000000 docs vs 4000000004 length in bytes of _0.fdx
> at org.apache.lucene.index.StoredFieldsWriter.closeDocStore(StoredFieldsWriter.java:94)
> at org.apache.lucene.index.DocFieldConsumers.closeDocStore(DocFieldConsumers.java:83)
> at org.apache.lucene.index.DocFieldProcessor.closeDocStore(DocFieldProcessor.java:47)
> at org.apache.lucene.index.DocumentsWriter.closeDocStore(DocumentsWriter.java:367)
> at org.apache.lucene.index.IndexWriter.flushDocStores(IndexWriter.java:1688)
> at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3518)
> at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3442)
> at org.apache.lucene.index.IndexWriter.closeInternal(IndexWriter.java:1623)
> at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1588)
> at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1562)
> ...
> This appears to be a bug at StoredFieldsWriter.java:93:
> if (4+state.numDocsInStore*8 != state.directory.fileLength(state.docStoreSegmentName + "." + IndexFileNames.FIELDS_INDEX_EXTENSION))
> where the multiplication by 8 is causing integer overflow. The fix would be to cast state.numDocsInStore to long before multiplying.
> It appears that this is another instance of the mistake that caused bug LUCENE-1519. I did a cursory seach for \*8 against the code to see if there might be yet more instances of the same mistake, but found none.
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