Some years ago I noticed that Lucene wouldn't finish indexing in a rebuild. Since then I anxiously refrained from rebuilding the index.
A couple of days ago we finally tried.. Unfortunately the indexing problem doesn't seem resolved in our current version (10.1.0). Although it indexed quite a lot, it failed to index the page titles. A major issue in everyday searching.
Would upgrading to 10.1.3 resolve the problem?
I also consider restoring the old index out of a backup tar. What files would I have to restore?