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Re:OpenTSDB – A Distributed, Scalable Time Series Database by dschiptsov on Tuesday December 22, 2015 @03:35AM (#10776552)
We have already seen how Cassandra clone in C++ perform.

I think that adding a new indexing strategy to a decent engine could be a good idea.

Informix did this.

Re:OpenTSDB – A Distributed, Scalable Time Series Database by kev009 on Tuesday December 22, 2015 @04:42AM (#10776732)
Mapr has an HBase compatible stack in C++, I would love to see TSDB numbers on that. TSDB is pretty efficient itself and since metrics collection is such a batchy operation JVM isn't really that much of a problem. You can run some dedicated TSDs for front end/UIs to ameliorate JVM pain there too.
Re:OpenTSDB – A Distributed, Scalable Time Series Database by rodionos on Tuesday December 22, 2015 @06:16AM (#10777043)
Do you mean Informix Time-Series Extension? It's been around for a while so maybe there are existing things that came out of IBM recently. Last time I checked its schema it was basically storing serie as a blob not unlike OPC historians like Pi.