This kind of separation is not supported yet. There however some work going on, you can read about it on https://issues.apache.org/jira/browse/SOLR-9835
This unfortunately would not support soft commits and hence would not be a good solution for near real time indexing. On Dec 16, 2016 7:44 AM, "Jaroslaw Rozanski" <m...@jarekrozanski.com> wrote: > Sorry, not what I meant. > > Leader is responsible for distributing update requests to replica. So > eventually all replicas have same state as leader. Not a problem. > > It is more about the performance of such. If I gather correctly normal > replication happens by standard update request. Not by, say, segment copy. > > Which means update on leader is as "expensive" as on replica. > > Hence, if my understanding is correct, sending search request to replica > only, in index heavy environment, would bring no benefit. > > So the question is: is there a mechanism, in SolrCloud (not legacy > master/slave set-up) to make one node take a load of indexing which > other nodes focus on searching. > > This is not a question of SolrClient cause that is clear how to direct > search request to specific nodes. This is more about index optimization > so that certain nodes (ie. replicas) could suffer less due to high > volume indexing while serving search requests. > > > > > On 16/12/16 12:35, Dorian Hoxha wrote: > > The leader is the source of truth. You expect to make the replica the > > source of truth or something???Doesn't make sense? > > What people do, is send write to leader/master and reads to > replicas/slaves > > in other solr/other-dbs. > > > > On Fri, Dec 16, 2016 at 1:31 PM, Jaroslaw Rozanski <m...@jarekrozanski.com > > > > wrote: > > > >> Hi all, > >> > >> According to documentation, in normal operation (not recovery) in Solr > >> Cloud configuration the leader sends updates it receives to all the > >> replicas. > >> > >> This means and all nodes in the shard perform same effort to index > >> single document. Correct? > >> > >> Is there then a benefit to *not* to send search requests to leader, but > >> only to replicas? > >> > >> Given index & search heavy Solr Cloud system, is it possible to separate > >> search from indexing nodes? > >> > >> > >> RE: Solr 5.5.0 > >> > >> -- > >> Jaroslaw Rozanski | e: m...@jarekrozanski.com > >> 695E 436F A176 4961 7793 5C70 AFDF FB5E 682C 4D3D > >> > >> > > > > -- > Jaroslaw Rozanski | e: m...@jarekrozanski.com > 695E 436F A176 4961 7793 5C70 AFDF FB5E 682C 4D3D > >
