On 4/15/2014 9:41 AM, Alexey Kozhemiakin wrote: > We've faced a strange data corruption issue with one of our clients old solr > setup (3.6). > > When we do a query (id:X OR id:Y) we get 2 nodes, one contains normal doc > data, another is empty (<doc />). > We've looked inside lucene index using Luke - same story, one of documents is > empty. > When we click on 1st document - it shows nothing. > http://snag.gy/O5Lgq.jpg > > > Probably files for stored data were corrupted? But luke index check says OK. > Any clues how to troubleshoot root cause?
Do you know for sure that the index was OK at some point? Do you know what might have happened when it became not OK, like a system crash? If you have Solr logs from whatever event caused the problem, we might be able to figure it out ... but if you don't know when it happened or you don't have logs, it might not be possible to know what happened. The document may have simply been indexed incorrectly. Thanks, Shawn