On 6/26/2014 8:47 PM, CONAN wrote: > I use solr4.4 , 2 shards and 2 replicas and I found a problem on solrCloud > search. > > > If I perform a query with start=0 and rows=10 and say fq=ownerId:123 , I get > numFound=225. > If I simply change the start param to start=6, I get numFound=223. > and i change the start param to start=10 , i get numFound=219. > > > i searhed google and get "You probably have duplicates (docs on different > shards with the same id)." > > > how is that happen? is that a bug? and how to fix it?
I think you mentioned this problem on IRC as well. What is the "router" on your collection? Is it implicit, or something like compositeId? You can find this by opening the admin UI, clicking Cloud, then Tree, and finding your collection under /collections. Click on the collection and look on the right side for the "router" entry. If you have implicit routing or you are using some other method (such as shard keys) to determine which shard contains a given document ID, then this problem would happen because you or your indexing program sent the same ID to different shards. If you're using compositeId so that document routing is automatic, then it should be impossible for this to happen ... unless you have manually adjusted your clusterstate and changed the hash ranges. Thanks, Shawn
