That should work. The caveat here is that you need to get the each shards index to the corresponding shard on your new collection.
Of course I'd back up _all_ of these indexes before even starting. And one other trick. First create your collection with 1 replica per shard (leader-only). Then copy the indexes (and, btw, I'd have the associated Solr nodes down during the copy) and verify the collection is as you'd expect. Now use ADDREPLICA to expand your collection, that'll handle the copying from the leader correctly. Best, Erick On Mon, Nov 7, 2016 at 12:49 PM, Chetas Joshi <chetas.jo...@gmail.com> wrote: > I have a Solr Cloud deployed on top of HDFS. > > I accidentally deleted a collection using the collection API. So, ZooKeeper > cluster has lost all the info related to that collection. I don't have a > backup that I can restore from. However, I have indices and transaction > logs on HDFS. > > If I create a new collection and copy the existing data directory to the > data directory path of the new collection I have created, will I be able to > go back to the state where I was? Is there anything else I would have to do? > > Thanks, > > Chetas.
