Hi; I've written an e-mail at dev list and I want to share same e-mail here. I've opened two issues at Jira and I want to get feedback of community.
First issue is: https://issues.apache.org/jira/browse/SOLR-4995 Currently Solr servers are interacting with only one Solr node. I think that there should be an implementation that propagates requests into multiple Solr nodes. For example when Solr is used as SolrCloud sending a LukeRequest should be made to one node at each shard. First patch will be related to implementing a PropagateServer for Solr. Second issue is related to first one: https://issues.apache.org/jira/browse/SOLR-4996 Let's assume that you are using Solr as SolrCloud and you have more than one shard. Let's assume that there are 20 docs at shard_1 and 15 docs at shard_2. When using CloudSolrServer if you make a LukeRequest it uses LBHttpSolrServer internally and it sends request to just one Solr Node (via HttpSolrServer) as round robin. So you may get 20 docs as a result at first request and if you send same request you may get 15 docs as a result too. Using a PropagateServer inside CloudSolrServer will fix that bug. I've made initial patchs for them and I will change/add code to them after getting feedback from community (i.e. first patch does not make multi threaded requests at PropagateServer, I just want to get feedbacks of community after that I will add other features) Thanks; Furkan KAMACI
