Doug, it looks like it might be this Lucene bug: https://issues.apache.org/jira/browse/LUCENE-1262
What version of Lucene is in the Solr you are running? You might want to try either one of the latest Solr nightly builds, or at least upgrading your Lucene version in Solr if it's not the latest patch release. -Yonik On Wed, Jul 2, 2008 at 9:03 AM, Doug Steigerwald <[EMAIL PROTECTED]> wrote: > What exactly does this error mean and how can we fix it? As far as I can > tell, all of our 30+ cores seem to be updating and autocommiting fine. By > fine I mean our autocommit hook is firing for all cores which leads me to > believe that the commit is happening, but segments can't be merged. Are we > going to have to rebuild whatever core this happens to be (if I can figure > it out)? > > Exception in thread "Thread-704" > org.apache.lucene.index.MergePolicy$MergeException: > java.lang.IndexOutOfBoundsException: Index: 43, Size: 43 > at > org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:271) > Caused by: java.lang.IndexOutOfBoundsException: Index: 43, Size: 43 > at java.util.ArrayList.RangeCheck(Unknown Source) > at java.util.ArrayList.get(Unknown Source) > at org.apache.lucene.index.FieldInfos.fieldInfo(FieldInfos.java:260) > at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:154) > at > org.apache.lucene.index.SegmentReader.document(SegmentReader.java:659) > at > org.apache.lucene.index.SegmentMerger.mergeFields(SegmentMerger.java:319) > at > org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:133) > at > org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3109) > at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:2834) > > Thanks. > Doug >