In the meetup, my colleague Aparna shared her explorative findings of enabling PRS, which uncovered 2 matters that seem to defeat much of PRS's idealized benefits: * Shard leader elections still touch state.json * Replica state is still in state.json Given those two matters, we didn't notice any improvement (or regression). Some FullStory devs, who use this mode in production, shared that the first matter wasn't noticed by them because they only run with one replica per shard. The other... was unclear why; maybe for backwards-compatibility? In my mind, there shouldn't be such a concern as it's enabled per-collection and you'd only do this once all servers are known to be PRS-enabled (e.g. have a modern Solr version).
If we can identify JIRA issues to capture the work involved, we could converse more and track the work to completion. I think it's important to get to a future in Solr 10 where there is one mode (PRS) not two. ~ David Smiley Apache Lucene/Solr Search Developer http://www.linkedin.com/in/davidwsmiley --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@solr.apache.org For additional commands, e-mail: dev-h...@solr.apache.org
