Solr Configuration: Increase Number of Indexer Threads for Better Performance

Solr indexing performance (shorter index cycles) may improve by increasing the number of threads used in the jobs that send data to Solr for indexing. The OOTB setting (1) may be too low. Take into consideration, the number of available cores on the node instance that is transmitting data to the Solr Master indexing server,  and apply a factor of 1 - 1.5 x the number of available cores as a general guide.

Marc Raygoza

Marc is the Founder of
He enjoys helping others learn more about SAP Hybris Commerce. Marc is a SAP Commerce Certified Professional and has held the role of Hybris Architect at Deloitte, PWC, Exemplis and Nasty Gal. He is a long-time Java/Spring developer. Marc holds an M.S. Software Engineering from Carnegie Mellon University and a B.S. in Accountancy from California State University, Fresno. He can be reached at:

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