Am 22.06.2014 10:06, schrieb Doron Fediuck:
Nicolas (and other on this thread),
I'd like to clarify one thing, as indeed this sometimes comes up as a question-
Where did oVirt prerequisites come from?
Since the engine may be installed with DWH & reporting, we need to consider
all components' needs including the DB;
The application server is configured to use 1 GiB of heap by default,
plus around 500 threads, which should result around 2 GiB of RSS in
the worst case. To that you have to add the RSS taken by the database,
the operating system, etc.
well, yeah, "worst case" but the 4 GB you mention, aren't specified as
worst case, but as a minimum. how can a worst case scenario be the
minimum?
On CentOS you're not able imho until some release to even install
DWH without third party repos.
Anyway thanks for the interesting insight where all those numbers come
from!
Adding Jasper requirements as well:
Resource Footprint Minimum Recommended
Disk ~1.3 GiB 10GB free 40GB +
RAM 4GB 8GB +
Processor 2 core minimum 2.5GHz + multi-core Pentium
So the end results[1] is around the above numbers to make sure we allow
this installation to work. It is possible to get along with less, if
you will not install some of the components, but this is what we should
expect from a standard installation.
Doron
[1]
http://www.ovirt.org/Quick_Start_Guide#Prerequisites
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