codec header mismatch

Recently I am getting lots of index corruption exception. I am using lucene 4.3. org.apache.lucene.index.CorruptIndexException: codec header mismatch: actual header=592666996 vs expected header=1071082519 (resource: MMapIndexInput(path="/2015/06/06/1433548802/_qn0.si")) 2015-07-03_04:31:38.57975

Re: Delete Parents without any children...

Thanks Adrien… Works like a charm!!! On Wed, Jul 1, 2015 at 10:22 PM, Adrien Grand wrote: > Hi Ravikumar, > > You need to run a BooleanQuery with two clauses: > - a must clause that matches all parent documents > - a must_not clause that matches all parents that have children > > Building thi