Solr Cookbook - Third Edition

Configuring the Solr heartbeat mechanism

Solr is designed to be scalable, fault tolerant, and have a high up time so that we can have our search service always ready. Many of the deployments, whether they are still master-slave setups or SolrCloud ones, still use some kind of load-balancing and health-checking mechanism. Solr comes with a request handler that is designed to handle health-checking requests, and this recipe will show you how to set it up.

How to do it...

Setting up the heartbeat mechanism in Solr is very easy. One just needs to add the following section to the solrconfig.xml file:

<requestHandler name="/admin/ping" class="solr.PingRequestHandler">
 <lst name="invariants">
  <str name="q">solrpingquery</str>
 </lst>
</requestHandler>

This ...