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Posted to user@ignite.apache.org by phalverson <pe...@gmail.com> on 2016/05/25 19:52:59 UTC

Ignite and H2?

What's the relationship between Ignite and H2? My sense is that H2 creates,
updates, and queries indexes built on cached values, while Ignite handles
actual data storage (e.g. cache, vs records in a data file) and distributing
queries and gathering results to/from cache nodes. Thus, H2 isn't actually
storing the data anywhere (outside of cache), just managing indexes? 




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Re: Ignite and H2?

Posted by vkulichenko <va...@gmail.com>.

Hi,

Your understanding is correct. H2 is mostly used for query parsing and
execution planning. Indexes and tables are highly customized to work
directly with the data stored in cache and to provide better performance in
highly concurrent scenarios.

-Val



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