Hi Folks;

This week we will make a pre-production version of our system. I've been
askng some questions for a time and I gor really good responses from mail
list. At pre-production and test step:

* I want to measure how much RAM I should define for my Solr instances,
* I will try to make some predictions about how much disk space I will need
at production step.
* Maybe I will check my answer for that question: which RAID to use (or not
use) etc.

For that questions I got answers from mail list and I have some
approximations about them. Also I know that it is not easy to answer such
questions and I should test them to get more accurate answers.
My question is that::

What do you suggest me at pre-production and test step?

* i.e. give much more heap size to Solr instances to calculate RAM
* use solrmeter to test qps for your cluster
* use sematext or anything else for performance monitoring etc.

I need some advices what to test, calculate, measeure etc. Also there was a
question about Codahale metrics and Graphite. You can advice something
about that too.

PS: I use Solr 4.2.1 for tests but if Solr 4.3 becomes ready (if it is
tagged at repository) I will use it.

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