Yes, quite possible. I do sometimes download and test beta versions. This isn't really a problem for me - it has only happened on test indexes that I don't care about, but there might be live indexes out there that are also affected and having them made unusable would be undesirable, to put it mildly. A message saying "Unsupported version" would be much better.
-- Ian. On Wed, Sep 10, 2014 at 12:41 PM, Uwe Schindler <u...@thetaphi.de> wrote: > Hi Ian, > > this index was created with the BETA version of Lucene 4.0: > > Segments file=segments_2 numSegments=1 version=4.0.0.2 format= > 1 of 1: name=_0 docCount=15730 > > "4.0.0.2" was the index version number of Lucene 4.0-BETA. This is not a > supported version and may not open correctly. In Lucene 4.10 we changed > version handling and parsing version numbers a bit, so this may be the cause > for the error. > > Uwe > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > > >> -----Original Message----- >> From: Ian Lea [mailto:ian....@gmail.com] >> Sent: Wednesday, September 10, 2014 1:01 PM >> To: java-user@lucene.apache.org >> Subject: 4.10.0: java.lang.IllegalStateException: cannot write 3x SegmentInfo >> unless codec is Lucene3x (got: Lucene40) >> >> Hi >> >> >> On running a quick test after a handful of minor code changes to deal with >> 4.10 deprecations, a program that updates an existing index failed with >> >> Exception in thread "main" java.lang.IllegalStateException: cannot write 3x >> SegmentInfo unless codec is Lucene3x (got: Lucene40) at >> org.apache.lucene.index.SegmentInfos.write3xInfo(SegmentInfos.java:607) >> >> and along the way did something to the index to make it unusable. >> >> Digging a bit deeper and working on a different old test index that was lying >> around, and taking a backup first this time, this is reproducible. >> >> The working index: >> >> total 1036 >> -rw-r--r-- 1 tril users 165291 Jan 18 2013 _0.fdt >> -rw-r--r-- 1 tril users 125874 Jan 18 2013 _0.fdx >> -rw-r--r-- 1 tril users 1119 Jan 18 2013 _0.fnm >> -rw-r--r-- 1 tril users 378015 Jan 18 2013 _0_Lucene40_0.frq >> -rw-r--r-- 1 tril users 350628 Jan 18 2013 _0_Lucene40_0.tim >> -rw-r--r-- 1 tril users 13988 Jan 18 2013 _0_Lucene40_0.tip >> -rw-r--r-- 1 tril users 311 Jan 18 2013 _0.si >> -rw-r--r-- 1 tril users 69 Jan 18 2013 segments_2 >> -rw-r--r-- 1 tril users 20 Jan 18 2013 segments.gen >> >> and output from 4.10 CheckIndex >> >> Opening index @ index/ >> >> Segments file=segments_2 numSegments=1 version=4.0.0.2 format= >> 1 of 1: name=_0 docCount=15730 >> version=4.0.0.2 >> codec=Lucene40 >> compound=false >> numFiles=7 >> size (MB)=0.987 >> diagnostics = {os=Linux, os.version=3.1.0-1.2-desktop, source=flush, >> lucene.version=4.0.0 1394950 - rmuir - 2012-10-06 02:58:12, os.arch=amd64, >> java.version=1.7.0_10, java.vendor=Oracle Corporation} >> no deletions >> test: open reader.........OK >> test: check integrity.....OK >> test: check live docs.....OK >> test: fields..............OK [13 fields] >> test: field norms.........OK [0 fields] >> test: terms, freq, prox...OK [53466 terms; 217447 terms/docs pairs; >> 139382 >> tokens] >> test: stored fields.......OK [15730 total field count; avg 1 fields per >> doc] >> test: term vectors........OK [0 total vector count; avg 0 term/freq >> vector >> fields per doc] >> test: docvalues...........OK [0 docvalues fields; 0 BINARY; 0 NUMERIC; 0 >> SORTED; 0 SORTED_NUMERIC; 0 SORTED_SET] >> >> No problems were detected with this index. >> >> >> Now run this little program >> >> public static void main(final String[] _args) throws Exception { File >> index = >> new File(_args[0]); IndexWriterConfig iwcfg = new >> IndexWriterConfig(Version.LUCENE_4_10_0, >> new StandardAnalyzer()); >> iwcfg.setOpenMode(IndexWriterConfig.OpenMode.CREATE_OR_APPEND); >> Directory d = FSDirectory.open(index, new SimpleFSLockFactory(index)); >> IndexWriter iw = new IndexWriter(d, iwcfg); Document doc1 = new >> Document(); doc1.add(new StringField("type", "test", Field.Store.NO)); >> iw.addDocument(doc1); iw.close(); >> } >> >> and it fails with >> >> Exception in thread "main" java.lang.IllegalStateException: cannot write 3x >> SegmentInfo unless codec is Lucene3x (got: Lucene40) at >> org.apache.lucene.index.SegmentInfos.write3xInfo(SegmentInfos.java:607) >> at org.apache.lucene.index.SegmentInfos.write(SegmentInfos.java:524) >> at >> org.apache.lucene.index.SegmentInfos.prepareCommit(SegmentInfos.java: >> 1017) >> at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4549) >> at >> org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.j >> ava:3062) >> at >> org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:3169 >> ) >> at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:915) >> at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:986) >> at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:956) >> at t.main(t.java:25) >> >> and when run CheckIndex again get >> >> >> Opening index @ index/ >> >> ERROR: could not read any segments file in directory >> java.nio.file.NoSuchFileException: /tmp/lucene/index/_0.si at >> sun.nio.fs.UnixException.translateToIOException(UnixException.java:86) >> at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) >> at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107) >> at >> sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider. >> java:176) >> at java.nio.channels.FileChannel.open(FileChannel.java:287) >> at java.nio.channels.FileChannel.open(FileChannel.java:334) >> at >> org.apache.lucene.store.MMapDirectory.openInput(MMapDirectory.java:19 >> 6) >> at >> org.apache.lucene.codecs.lucene40.Lucene40SegmentInfoReader.read(Luce >> ne40SegmentInfoReader.java:52) >> at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:362) >> at >> org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:458) >> at >> org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfo >> s.java:913) >> at >> org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfo >> s.java:759) >> at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:454) >> at org.apache.lucene.index.CheckIndex.checkIndex(CheckIndex.java:414) >> at org.apache.lucene.index.CheckIndex.main(CheckIndex.java:2096) >> >> which is true >> >> total 1032 >> -rw-r--r-- 1 tril users 165291 Jan 18 2013 _0.fdt >> -rw-r--r-- 1 tril users 125874 Jan 18 2013 _0.fdx >> -rw-r--r-- 1 tril users 1119 Jan 18 2013 _0.fnm >> -rw-r--r-- 1 tril users 378015 Jan 18 2013 _0_Lucene40_0.frq >> -rw-r--r-- 1 tril users 350628 Jan 18 2013 _0_Lucene40_0.tim >> -rw-r--r-- 1 tril users 13988 Jan 18 2013 _0_Lucene40_0.tip >> -rw-r--r-- 1 tril users 69 Jan 18 2013 segments_2 >> -rw-r--r-- 1 tril users 20 Jan 18 2013 segments.gen >> >> >> I don't recall the origins of this index but it may well have been created >> in the >> distant past and been upgraded, explicitly or automatically, along the way. >> Although evidently not for a while. >> >> >> Running the same test with lucene 4.9.0 and minimal mods to the program >> runs to successful completion. Here's the CheckIndex output: >> >> >> Opening index @ index-4.9.updated/ >> >> Segments file=segments_3 numSegments=2 versions=[4.0.0.2 .. 4.9] format= >> 1 of 2: name=_0 docCount=15730 >> codec=Lucene40 >> compound=false >> numFiles=7 >> size (MB)=0.987 >> diagnostics = {os=Linux, os.version=3.1.0-1.2-desktop, source=flush, >> lucene.version=4.0.0 1394950 - rmuir - 2012-10-06 02:58:12, os.arch=amd64, >> java.version=1.7.0_10, java.vendor=Oracle Corporation} >> no deletions >> test: open reader.........OK >> test: check integrity.....OK >> test: check live docs.....OK >> test: fields..............OK [13 fields] >> test: field norms.........OK [0 fields] >> test: terms, freq, prox...OK [53466 terms; 217447 terms/docs pairs; >> 139382 >> tokens] >> test: stored fields.......OK [15730 total field count; avg 1 fields per >> doc] >> test: term vectors........OK [0 total vector count; avg 0 term/freq >> vector >> fields per doc] >> test: docvalues...........OK [0 docvalues fields; 0 BINARY; 0 NUMERIC; 0 >> SORTED; 0 SORTED_NUMERIC; 0 SORTED_SET] >> >> 2 of 2: name=_1 docCount=1 >> codec=Lucene49 >> compound=true >> numFiles=3 >> size (MB)=0.001 >> diagnostics = {timestamp=1410281698360, os=Linux, os.version=3.1.0-1.2- >> desktop, source=flush, lucene.version=4.9.0 >> 1604085 - rmuir - 2014-06-20 06:22:23, os.arch=amd64, java.version=1.7.0_10, >> java.vendor=Oracle Corporation} >> no deletions >> test: open reader.........OK >> test: check integrity.....OK >> test: check live docs.....OK >> test: fields..............OK [1 fields] >> test: field norms.........OK [0 fields] >> test: terms, freq, prox...OK [1 terms; 1 terms/docs pairs; 0 tokens] >> test: stored fields.......OK [0 total field count; avg 0 fields per doc] >> test: term vectors........OK [0 total vector count; avg 0 term/freq >> vector >> fields per doc] >> test: docvalues...........OK [0 docvalues fields; 0 BINARY; 0 NUMERIC; 0 >> SORTED; 0 SORTED_NUMERIC; 0 SORTED_SET] >> >> No problems were detected with this index. >> >> >> >> >> -- >> Ian. >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
