[ http://issues.apache.org/jira/browse/LUCENE-480?page=comments#action_12359810 ]
Jeremy Calvert commented on LUCENE-480: --------------------------------------- Apparently my hardware or filesystem is having some difficulties, which could be the reason the fieldsStream is corrupt. I apologize for the false alarm and sincerely appreciate the quick feedback. # dmesg ... PCI-DMA: Out of IOMMU space for 180224 bytes at device 0000:00:07.0 end_request: I/O error, dev sda, sector 52463038 printk: 1014 messages suppressed. Buffer I/O error on device md0, logical block 21106784 > NullPointerException during IndexWriter.mergeSegments > ----------------------------------------------------- > > Key: LUCENE-480 > URL: http://issues.apache.org/jira/browse/LUCENE-480 > Project: Lucene - Java > Type: Bug > Components: Index > Versions: CVS Nightly - Specify date in submission, 1.9 > Environment: 64bit, ubuntu, Java 5 SE > Reporter: Jeremy Calvert > > Last commit on culprit org.apache.lucene.index.FieldsReader: Sun Oct 30 > 05:38:46 2005. > --------------------------------------------------------- > Offending code in FieldsReader.java: > ... > final Document doc(int n) throws IOException { > indexStream.seek(n * 8L); > long position = indexStream.readLong(); > fieldsStream.seek(position); > Document doc = new Document(); > int numFields = fieldsStream.readVInt(); > for (int i = 0; i < numFields; i++) { > int fieldNumber = fieldsStream.readVInt(); > FieldInfo fi = fieldInfos.fieldInfo(fieldNumber); > // > // This apparently returns null, presumably either as a result of: > // catch (IndexOutOfBoundsException ioobe) { > // return null; > // } > // in fieldInfos.fieldInfo(int fieldNumber) > // - or - > // because there's a null member of member ArrayList byNumber of FieldInfos > byte bits = fieldsStream.readByte(); > > boolean compressed = (bits & FieldsWriter.FIELD_IS_COMPRESSED) != 0; > .... > Field.Store store = Field.Store.YES; > // > // Here --v is where the NPE is thrown. > if (fi.isIndexed && tokenize) > index = Field.Index.TOKENIZED; > ... > --------------------------------------------------------- > Proposed Patch: > I'm not sure what the behavior should be in this case, but if it's no big > deal that there's null field info for an index and we should just ignore that > index, an obvious patch could be: > In FieldsReader.java: > ... > for (int i = 0; i < numFields; i++) { > int fieldNumber = fieldsStream.readVInt(); > FieldInfo fi = fieldInfos.fieldInfo(fieldNumber); > // vvvPatchvvv > if(fi == null) {continue;} > byte bits = fieldsStream.readByte(); > ... > --------------------------------------------------------- > Other observations: > In my search prior to submitting this issue, I found LUCENE-168, which looks > similar, and is perhaps related, but if so, I'm not sure exactly how. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
