Hi,My indices sometime become corrupted - normally when Solr has to be
KILLed - these are not normally too much of a problem, as
Lucene's CheckIndex tool can normally detect missing / broken segments and
fix them.
However, I now have a few indices throwing errors like this:
INFO: [core4] webapp=/solr path=/update params={} status=0 QTime=2
Exception in thread "Thread-75"
org.apache.lucene.index.MergePolicy$MergeException:
org.apache.lucene.index.CorruptIndexException: docs out of order (1124 <=
1138 )
at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:271)
Caused by: org.apache.lucene.index.CorruptIndexException: docs out of order
(1124 <= 1138 )
at
org.apache.lucene.index.SegmentMerger.appendPostings(SegmentMerger.java:502)
at
org.apache.lucene.index.SegmentMerger.mergeTermInfo(SegmentMerger.java:456)
at
org.apache.lucene.index.SegmentMerger.mergeTermInfos(SegmentMerger.java:425)
at org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:389)
at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:134)
at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3109)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:2834)
at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:240)
and
INFO: [core7] webapp=/solr path=/update params={} status=500 QTime=5457
Feb 22, 2009 12:14:07 PM org.apache.solr.common.SolrException log
SEVERE: org.apache.lucene.index.CorruptIndexException: docs out of order
(242 <= 248 )
at
org.apache.lucene.index.SegmentMerger.appendPostings(SegmentMerger.java:502)
at
org.apache.lucene.index.SegmentMerger.mergeTermInfo(SegmentMerger.java:456)
at
org.apache.lucene.index.SegmentMerger.mergeTermInfos(SegmentMerger.java:425)
at org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:389)
at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:134)
at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3109)
at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:2834)
at
org.apache.lucene.index.ConcurrentMergeScheduler.merge(ConcurrentMergeScheduler.java:193)
at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:1800)
at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:1795)
at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:1791)
at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:2398)
at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1465)
at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1424)
at
org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:278)
CheckIndex reports these cores as being completely healthy, and yet I can't
commit new documents in to them.
Rebuilding indices isn't an option for me: is there any other way to fix
this? If not, any ideas on what I can do to prevent it in the future?
Many thanks,
James
