Can't see it being a threat to exadata
When I tried Hazelcast last year, it was painfully slow to ingest data.
Another day, another bunch of VCs pour cash into a tech startup. Move along; there’s nothing to see here - or is there? The lucky recipient of $11 million in a B-round of funding is Hazelcast, an in-memory computing hopeful which claims it is the leading open source in-memory data grid and up and coming InMemory NoSQL …
Surprised that the article makes no mention of which product it was originally (and probably still?) made to compete with (and to no small extent "copied" from)? And that's Oracle's "Coherence" (their In-Memory Grid Caching solution they acquired from Tangosol). I believe that it was also pitched against Terracotta, although a different type of product.
How foolish.
Comparing an in-memory system to a disk based system and then praying:
"Wouldn’t it be great if Open Source software eviscerates the expensive Exadata scheme"
Similar like saying I pray my space shuttle beats the Benz.
A comparison with SAP HANA or Oracle Exalytics would be more like it.