Cassandra replication when using Solr

(3 posts) (3 voices)

• Started 1 year ago by
• Latest reply from tjake
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1. 

   Anonymous
   Unregistered

   How should replication be setup when using Solr? The wikipedia demo keyspace is setup with "strategy_options = {Solr:1};".

   It is my understanding that the Solr nodes only store index data; not the complete set of Cassandra data.

   Should this have been [{Cassandra:1,Solr:1}];? Or is the Cassandra storage implied?

   If I wanted two replicas in cassandra would I use "update keyspace wiki with strategy_options = [{Cassandra:2,Solr:1}];"?

   Can you also have replicated Solr indicies?

   Posted 1 year ago #
2. 

   jas
   Member

   You might find this other thread helpful:

   http://www.datastax.com/support-forums/topic/dse-20-solr-and-non-solr-related-content-unavailableexception

   I'm using two Solr nodes (dse cassandra -s) for both handling Solr queries (via SolrJ client library), and maintaining other non-search related data within Cassandra (via Hector). By putting my own non-Solr related keyspaces in the Solr data center, I managed to get things to work. I have two DSE nodes running, and I want them to be replicas, so I did:

   update keyspace IsecSecurityTokens
   WITH strategy_options={Solr:2};

   I'm not working with Hadoop yet, and I did not want to have additional Cassandra only nodes. I wanted two Solr nodes, that I can also use for non-search related content.

   Hope this helps,

   Jeff

   Posted 1 year ago #
3. 

   tjake
   Moderator

   jrhoads, a "Solr" node is running both Cassandra and Solr. So it has both.

   Yes you can replicate the Solr nodes and data by increasing the RF

   So if 2 Solr nodes and you want all the data replicated to both you would have strategy_options={Solr:2};

   Posted 1 year ago #

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