Hi, I'm using H2 as a local database system for development.
I looking for the best performance and resource efficiency settings,
memory is not a problem and I would gladly change anything to get the
fastest response time it can offer.
Currently I have 2 databases, one for Pentaho Kettle repository and
the other one for the ETL control and reference tables that serve as
local copies of production databases.
I use DBvis 7.2 and Pentaho Kettle 3.2.4, both java apps, and I only
"invoke" the database from the jar as jdbc, with Pentaho I had to copy
the jar to it's special sub-directory, and DBvis could read it from my
h2 folder.

I just define jdbc connection like:
jdbc:h2:~/apps/h2/repo

And:
jdbc:h2:~/apps/h2/local

I use them both at the same time 90% of the time.

So I would like to think it's running on embedded mode, but I don't
fully understand how it works and what would be the best config.
I mean, is this OK?
Having the same jar file at 2 different locations, each used by a
different app?
Having 2 different databases? (I could easily merge the databases into
one)
Having them loaded on-demand by the app? (I could launch it at startup
with java -jar ~/apps/h2/h2-1-3-154.jar, right?)

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