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Hbase is going offheap as much as possible. Voltdb uses java for management and c++ for low-level. They will write c++ in java eventually. Depending on how muc
by ddorian43 9y ago
Hbase is going offheap as much as possible. Voltdb uses java for management and c++ for low-level.
They will write c++ in java eventually. Depending on how much performance you REALLY need.
The same for elasticseach, if you want performance you need to do the same thing scylladb did to cassandra (per-core-sharding, skip filesystem across cores etc)
- ddorian43 9y agoIn elasticsearcch terms, vespa.ai, which claims better performance/scalability/maintanability uses c++ for lucene layer and java for the solr/elasticsearch layer. There are blog posts speeding lucene by 2x+ by changing some stuff to c/c++. There are libraries (trinity) claiming 2x+ performance . There is google-engineer saying "bigtable is 3x faster than hbase" that I've read.