'Lucene' search subsystem on alfresco-4.2.4 for Clustering ?

[mfaquih]

We are using 'lucene' search subsystem on alfresco-4.2.4, will this cause any issue on Alfresco cluster because as per the alfresco document (below link) setting up repository server cluster should have SOLR indexes.

http://docs.alfresco.com/4.2/tasks/cluster-setup.html

Can you please suggest if setting alfresco cluster using 'lucene' indexing will not cause any issue ?

[afaust]

The Lucene search subsystem on Alfresco Enterprise 4.2.4 also supports clustering. Much like SOLR, the Lucene subsystem will regularily check if there is data it hasn't indexed yet and re-index that if necessary. Other than SOLR, Lucene will only work if the cluster is "properly" established, e.g. both servers are in full communication with each other. With SOLR it is technically possible to have everything indexed from multiple Alfresco servers even if the cluster has not been setup correctly.