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LUCENE-1282: upgrade an assert to a real check, to work around Sun JRE hotspot bug to prevent index corruption 

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@655030 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael McCandless 2008-05-10 08:48:50 +00:00
parent 39651e029d
commit b591e8c580
1 changed files with 9 additions and 2 deletions
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11
src/java/org/apache/lucene/index/SegmentMerger.java
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@ -355,8 +355,15 @@ final class SegmentMerger {
fieldsWriter.close();
}
assert 4+docCount*8 == directory.fileLength(segment + "." + IndexFileNames.FIELDS_INDEX_EXTENSION) :
"after mergeFields: fdx size mismatch: " + docCount + " docs vs " + directory.fileLength(segment + "." + IndexFileNames.FIELDS_INDEX_EXTENSION) + " length in bytes of " + segment + "." + IndexFileNames.FIELDS_INDEX_EXTENSION;
final long fdxFileLength = directory.fileLength(segment + "." + IndexFileNames.FIELDS_INDEX_EXTENSION);
if (4+docCount*8 != fdxFileLength)
// This is most like a bug in Sun JRE 1.6.0_04/_05;
// we detect that the bug has struck, here, and
// throw an exception to prevent the corruption from
// entering the index. See LUCENE-1282 for
// details.
throw new RuntimeException("mergeFields produced an invalid result: docCount is " + docCount + " but fdx file size is " + fdxFileLength + "; now aborting this merge to prevent index corruption");
} else
// If we are skipping the doc stores, that means there