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/IndexUpgrader.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(ConcurrentMergeScheduler.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.
