Thank you very much Emmanuel, It makes a lot of sense now!

I've started w/my own backends and I'm going through setting it up now...

Thanks a lot again! I'm sure I'll be asking more questions shortly.

Emmanuel Cecchet wrote:
Alexander,

I've read a bit and I'm trying the raidb1 demo....

The demo starts, but rather than having the backends start, this is what i get:

14:40:00,894 INFO controller.virtualdatabase.myDB Unknown last state for backend localhost. Leaving node in disabled state. 14:40:00,899 INFO controller.virtualdatabase.myDB Unknown last state for backend localhost2. Leaving node in disabled state.
The demo-raidb1.sh does not initialize the backend. You can take the demo-distributed-raidb1.sh instead. I have recently upgraded the non-distributed demo to also initialize the backends and execute queries as in the distributed version. You can get this from the last nightly build or from CVS. The next 3.0 release should also be out soon.
how can i enable them? where is a backup I could restore?
You have to first initialize the cluster as described in the doc. You can look at the scripts used for the distributed demo (in demo/ directory), the principle is the same.

Thanks for your interest in Sequoia,
Emmanuel



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