Hi,
Im new to Solr, and I hear that Solr is a great tool for improving search 
performanceIm unsure whether Solr or DSE Search is a must for all cassandra 
deployments
1. For performance - I thought cassandra had great read & write performance. 
When should solr be used ?Taking the following use cases for cassandra from the 
datastax FAQ page, in which cases would Solr be useful, and whether for 
all?Time series data managementHigh-velocity device data ingestion and 
analysisMedia streaming (e.g., music, movies)Social media input and 
analysisOnline web retail (e.g., shopping carts, user transactions)Web log 
management / analysisWeb click-stream analysisReal-time data analyticsOnline 
gaming (e.g., real-time messaging)Write-intensive transaction systemsBuyer 
event analyticsRisk analysis and management
2. what changes to cassandra data modeling does Solr bring? We have some 
guidelines & best practices around cassandra data modeling.Is Solr so powerful, 
that it does not matter how data is modelled in cassandra? Are there different 
best practices for cassandra data modeling when Solr is in the picture?Is this 
something we should keep in mind while modeling for cassandra today- that it 
should be  good to be used via Solr in future?
3. Does Solr come with any drawbacks like its not real time ? 
I can & should read the manual, but it will be great if someone can explain at 
a high level. 
Thank you!

Regards,Roshni                                    

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