Hi All, I am using Solr 4.1.
I have a Solr cluster of 3 leaders and 3 replicas hosting collection1 consisting of thousands of documents currently serving the search requests. I would like re-index all the documents in another collection, say collection2 in this same solr cluster and swap it with collection1. I would think this is a very common use case - we don't want any service interruption to our customer's search requests. So, can someone list the steps and commands involved to achieve the above? I did take a look at collection API. Should collection2 have exact same configurations as collection1, I mean number of leaders and replicas? How do I swap a collection? There does not seem to be any API for that. From admin GUI, I can only swap individual cores. This is not good - I would like to know if there is any atomic way to swap an entire collection. Another problem is - collections API does not seem to give me control over where each leaders and replicas will be created for the new collection in the cluster. Unless I have a control over this, how am I going to swap if I *have* to use only core swapping feature. I did check out other email threads on this topic, but none seems to be very clear. Thanks a lot for your help. -Shankar
