Yes. Maybe. It Depends (tm). Details matter (tm).
If you're firing just a few QPS at the system, then improved throughput by adding replicas is unlikely. OTOH, if you're firing lots of simultaneous queries at Solr and are pegging the processors, then adding replication will increase aggregate QPS. If your soft commit interval is very short and you're not doing proper warming, it won't help at all in all probability. Replication in Solr is about increasing the number of instances available to serve queries. The two types of replication (HDFS or Solr) are really orthogonal, the first is about data integrity and the second is about increasing the number of Solr nodes available to service queries. Best, Erick On Thu, Aug 20, 2015 at 9:23 AM, Joseph Obernberger <j...@lovehorsepower.com> wrote: > Hi - we currently have a multi-shard setup running solr cloud without > replication running on top of HDFS. Does it make sense to use replication > when using HDFS? Will we expect to see a performance increase in searches? > Thank you! > > -Joe
