Sesame in-memory triple store
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    - Using openrdf-sesame-latest
    - Using in-memory repository in Sesame Standalone Server
    - Using REST api interface (SPARQL queries) to Sesame Standalone server
    - Have few hundred thousands triples for now
    - have 16GB of memory on Sesame Server
    - Moderate writes and reads

I am just looking for opinions/help here from the experts

I started this as a POC and build my application on top of it. I am looking at 4Stores and Mulgara, Alleograph (free) options.

   - Given my less experience, I was wondering when would it be absolutley
   mandatory for me to move away from Sesame Server.
   - Would it be scale, security, write/read peformance etc?
   - If I only have, lets say, 100,000 triples, do I ever need to move to some other store and why?
   - I intend to use it for production use-case as well.

Its just that I am trying avoid invest time in migrating unless its absolutely needed. Let me put it another way "Can I use openrdf-sesame-latest Standalone server with in-memory repository (16GB) in production? If not, why not?