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Re: openshift memory requirements



Well, I installed (through the Ansible install) the origin 1.5 on 3 VM's, each of them had 4 GB RAM, the nodes had 2 cores.I also enabled the metrics.

The entire system barely responded (this is an i7 machine with 16GB RAM). Thats why I asked if there are any changes that I need to add through Ansible to make the system work well with such amount of RAM.

תודה,
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On Tue, May 23, 2017 at 9:09 PM, Clayton Coleman <ccoleman redhat com> wrote:
OpenShift at that scale probably requires 300-500M on the master and 100-200M at the nodes at that scale.

On Tue, May 23, 2017 at 2:02 PM, Hetz Ben Hamo <hetz hetz biz> wrote:
I thought about 2 nodes with 4GB (and 2 coers) at the beginning and add nodes as needed.
Number of pods - thought about using 6 (2 wordpress, 2 mysql, 2 memcache)

תודה,
חץ בן חמו
אתם מוזמנים לבקר בבלוג היעוץ או בבלוג הפרטי שלי

On Tue, May 23, 2017 at 8:59 PM, Clayton Coleman <ccoleman redhat com> wrote:
How many nodes and pods are you planning to run?

On Tue, May 23, 2017 at 1:43 PM, Hetz Ben Hamo <hetz hetz biz> wrote:
Hi,

I've read the docs about openshift memory requirements and I wanted to ask something..

I'm planning to build a system which will host a web site (wordpress based, for example) which will auto-scale based on the number of visitors..

According to the docs in the link (https://docs.openshift.com/container-platform/3.5/install_config/install/prerequisites.html) it requires 16GB RAM (it's used to be 8GB in 3.0). It doesn't mention the amount of ram needed for the infra nodes in the docs (I assume another 8GB?)

My question: is there any way to build a system with much less ram? something like 4GB for Master, 4GB per node (minimum 2 nodes)? if so, what configurations should I add to my ansible host file?

Thanks

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