If the machine is an i7 it likely only has 4 cores/threads total. 3 VM x 2 cores = 6 cores required. Also, instead of having 3 VMs with at least one IO controller and a NIC each, you have 3 VMs sharing 1 IO controller and 1 NIC. Not as fun as it sounds.
My lab machine is a HP z820 with 32 cores and 128GB of RAM. When I spin up a SmartStart style 3x3x3 cluster + 1 bastion host + 1 NFS host (3 masters, 3 infra, 3 app nodes + 2 support hosts), my IO controller can't keep up. I might as well be running on some 4 year old cellphone. Which reminds me, I need to move those VMs over to the storage attached to my RAID controller. ----------------------------------------------------------------------- LOUIS P. SANTILLAN SENIOR CONSULTANT, OPENSHIFT, MIDDLEWARE & DEVOPS Red Hat Consulting, NA US WEST <https://www.redhat.com/> lpsan...@gmail.com M: 3236334854 <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted> On Tue, May 23, 2017 at 11:13 AM, Hetz Ben Hamo <h...@hetz.biz> wrote: > 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, > *חץ בן חמו* > אתם מוזמנים לבקר בבלוג היעוץ <http://linvirtstor.net/> או בבלוג הפרטי שלי > <http://benhamo.org> > > On Tue, May 23, 2017 at 9:09 PM, Clayton Coleman <ccole...@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 <h...@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 <http://linvirtstor.net/> או בבלוג הפרטי >>> שלי <http://benhamo.org> >>> >>> On Tue, May 23, 2017 at 8:59 PM, Clayton Coleman <ccole...@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 <h...@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/co >>>>> ntainer-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 >>>>> >>>>> _______________________________________________ >>>>> users mailing list >>>>> users@lists.openshift.redhat.com >>>>> http://lists.openshift.redhat.com/openshiftmm/listinfo/users >>>>> >>>>> >>>> >>> >> > > _______________________________________________ > users mailing list > users@lists.openshift.redhat.com > http://lists.openshift.redhat.com/openshiftmm/listinfo/users > >
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