On Tue, Dec 02, 2008 at 04:34:08PM -0500, Burton-West, Tom wrote: > Hello all, > > As I understand distributed Solr, a request for a distributed search > goes to a particular Solr instance with a list of arguments specifying > the addresses of the shards to search. The Solr instance to which the > request is first directed is responsible for distributing the query to > the other shards and pulling together the results. My questions are: > > 1 Does it make sense to > A. Always have the same Solr instance responsible for distributing the > query to the other shards > or > B. Rotate which shard does the distributing/result aggregating? > > 2. For scenario A, are there different requirements (memory,cpu, > processors etc) for the machine doing the distribution versus the > machines hosting the shards responding to the distributed requests? > > 3. For scenario B, are people using some kind of load balancing to > distribute which Solr instance acts as the query distributor/response > aggregator?
We use Scenario B, we have 4 Solr instances (4 machines), each with N data SolrCores and 1 'default' Core which does the dispatch and aggregation of requests between the 4*N total data cores. We then use HAproxy to load balance the requests between the dispatch Cores. enjoy, -jeremy -- ======================================================================== Jeremy Hinegardner [EMAIL PROTECTED]
