really <3>. replicationFactor is used to set up your collection initially, you have to be able to change your topology afterwards so it's ignored thereafter.
Once your replica is added, it's automatically made use of by the collection. On Wed, Apr 12, 2017 at 9:30 AM, Johannes Knaus <kn...@mpdl.mpg.de> wrote: > Hi, > > I am still quite new to Solr. I have the following setup: > A SolrCloud setup with > 38 nodes, > maxShardsPerNode=2, > implicit routing with routing field, > and replication factor=2. > > Now, I want to add replica. This works fine by first increasing the > maxShardsPerNode to a higher number and then add replicas. > So far, so good. I can confirm changes of the maxShardsPerNode parameter and > added replicas in the Admin UI. > However, the Solr Admin UI still is showing me a replication factor of 2. > I am a little confused about what the replicationfactor parameter actually > does in my case: > > 1) What does that mean? Does Solr make use of all replicas I have or only of > two? > 2) Do I need to increase the replication factor value as well to really have > more replicas available and usable? If this is true, do I need to > restart/reload the collection newly upload configs to Zookeeper or anything > alike? > 3) Or is replicationfactor just a parameter that is needed for the first > start of SolrCloud and can be ignored afterwards? > > Thank you very much for your help, > All the best, > Johannes >
