Why LUCENE_42?Why not LUCENE_41? Do I still need to run IndexUpgrader or just loading will be enough?
Thanks. -----Original Message----- From: Erick Erickson [mailto:erickerick...@gmail.com] Sent: Tuesday, May 21, 2013 2:52 PM To: solr-user@lucene.apache.org Subject: Re: Upgrade Solr index from 4.0 to 4.2.1 This is always something that gives me a headache, but what happens if you change <luceneMatchVersion> in solrconfig.xml to LUCENE_40? I'm assuming it's LUCENE_42... Best Erick On Tue, May 21, 2013 at 5:48 AM, Elran Dvir <elr...@checkpoint.com> wrote: > Hi all, > > I have a 4.0 Solr (sharded/cored) index. > I upgraded Solr to 4.2.1 and tried to load the existing index with it. I got > the following exception: > > May 21, 2013 12:03:42 PM org.apache.solr.common.SolrException log > SEVERE: null:org.apache.solr.common.SolrException: Unable to create core: > other_2013-05-04 > at > org.apache.solr.core.CoreContainer.recordAndThrow(CoreContainer.java:1672) > at > org.apache.solr.core.CoreContainer.create(CoreContainer.java:1057) > at > org.apache.solr.core.CoreContainer$3.call(CoreContainer.java:634) > at > org.apache.solr.core.CoreContainer$3.call(CoreContainer.java:629) > at > java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:345) > at java.util.concurrent.FutureTask.run(FutureTask.java:177) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:482) > at > java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:345) > at java.util.concurrent.FutureTask.run(FutureTask.java:177) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:614) > at java.lang.Thread.run(Thread.java:779) > Caused by: org.apache.solr.common.SolrException: Error opening new searcher > at org.apache.solr.core.SolrCore.<init>(SolrCore.java:822) > at org.apache.solr.core.SolrCore.<init>(SolrCore.java:618) > at > org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:1021) > at > org.apache.solr.core.CoreContainer.create(CoreContainer.java:1051) > ... 10 more > Caused by: org.apache.solr.common.SolrException: Error opening new searcher > at > org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1435) > at > org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1547) > at org.apache.solr.core.SolrCore.<init>(SolrCore.java:797) > ... 13 more > Caused by: org.apache.solr.common.SolrException: Error opening Reader > at > org.apache.solr.search.SolrIndexSearcher.getReader(SolrIndexSearcher.java:172) > at > org.apache.solr.search.SolrIndexSearcher.<init>(SolrIndexSearcher.java:183) > at > org.apache.solr.search.SolrIndexSearcher.<init>(SolrIndexSearcher.java:179) > at > org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1411) > ... 15 more > Caused by: org.apache.lucene.index.CorruptIndexException: codec mismatch: > actual codec=Lucene40StoredFieldsIndex vs expected > codec=Lucene41StoredFieldsIndex (resource: > MMapIndexInput(path="/var/solr/multicore_solr/other_2013-05-04/data/index/_3gfk.fdx")) > at > org.apache.lucene.codecs.CodecUtil.checkHeaderNoMagic(CodecUtil.java:140) > at > org.apache.lucene.codecs.CodecUtil.checkHeader(CodecUtil.java:130) > at > org.apache.lucene.codecs.compressing.CompressingStoredFieldsReader.<init>(CompressingStoredFieldsReader.java:102) > at > org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsReader(CompressingStoredFieldsFormat.java:113) > at > org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:147) > at > org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:56) > at > org.apache.lucene.index.StandardDirectoryReader$1.doBody(StandardDirectoryReader.java:62) > at > org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:783) > at > org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:52) > at > org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:88) > at > org.apache.solr.core.StandardIndexReaderFactory.newReader(StandardIndexReaderFactory.java:34) > at > org.apache.solr.search.SolrIndexSearcher.getReader(SolrIndexSearcher.java:169) > ... 18 more > > It seems the problem is with my stored fields. This is the configuration of > all sored fields: > <field name="id" type="uuid" indexed="true" stored="true" > required="true" multiValued="false" /> <field name="marker" > type="string" indexed="false" stored="true"/> Field "id" is my unique key. > > So, I looked for a way to upgrade the version of the index. > > I tried Lucene's IndexUpgrader as described here: > http://lucene.apache.org/core/4_2_1/core/org/apache/lucene/index/Index > Upgrader.html I issued this command: java -cp lucene-core-4.2.1.jar > org.apache.lucene.index.IndexUpgrader -verbose > ./other_2013-05-04/data/index I got similar exception: > > Exception in thread "main" java.io.IOException: background merge hit > exception: _3ea8(5.0):C170283/17098 _3g2k(5.0):C18785/1858 > _3gfe(5.0):C1858/10 _3gfj(5.0):C3 _3gfg(5.0):C3 _3gfi(5.0):C2 _3gfh(5.0):C1 > _3gff(5.0):C1 _3gfk(5.0):C1 into _3gfm [maxNumSegments=1] > at > org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1674) > at > org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1610) > at > org.apache.lucene.index.IndexUpgrader.upgrade(IndexUpgrader.java:161) > at > org.apache.lucene.index.IndexUpgrader.main(IndexUpgrader.java:109) > Caused by: org.apache.lucene.index.CorruptIndexException: codec mismatch: > actual codec=Lucene40StoredFieldsIndex vs expected > codec=Lucene41StoredFieldsIndex (resource: > MMapIndexInput(path="/var/solr/multicore_solr/other_2013-05-04/data/index/_3ea8.fdx")) > at > org.apache.lucene.codecs.CodecUtil.checkHeaderNoMagic(CodecUtil.java:140) > at org.apache.lucene.codecs.CodecUtil.checkHeader(CodecUtil.java:130) > at > org.apache.lucene.codecs.compressing.CompressingStoredFieldsReader.<init>(CompressingStoredFieldsReader.java:102) > at > org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsReader(CompressingStoredFieldsFormat.java:113) > at > org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:147) > at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:56) > at > org.apache.lucene.index.ReadersAndLiveDocs.getMergeReader(ReadersAndLiveDocs.java:153) > at > org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3630) > at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3296) > at > org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:401) > at > org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(Concu > rrentMergeScheduler.java:478) > > Am I doing something wrong? Am I missing something? > Is there a way to configure the stored fields to use Lucene40 index in Solr > 4.2.1 as well? If so, upgrade may be unnecessary. > > Thanks. > Email secured by Check Point
