[ovirt-users] Memory for Engine Machine

[Simone Tiraboschi]

On Mon, Feb 20, 2017 at 9:39 PM, Roy Golan <rgolan at redhat.com> wrote:

>
>
> On Feb 20, 2017 9:35 PM, "Doug Ingham" <dougti at gmail.com> wrote:
>
> 16GB is just the recommended amount of memory. The more items your Engine
> has to manage, the more memory it will consume, so whilst it might not be
> using that amount of memory at the moment, it will do as you expand your
> cluster.
>
>
> It will never really need this amount of memory. There is no reason to
> configure the heap for 16gb.
>
>
>
> On 20 February 2017 at 16:22, FERNANDO FREDIANI <fernando.frediani at upx.com
> > wrote:
>
>> Hello folks
>>
>> I have a Engine dedicated machine running with 4GB of memory. It has been
>> working fine without any apparent issues.
>>
>> If I check the system memory usage it rarely goes over 1.5GB.
>>
>> But when I upgrade oVirt Engine it complains with the following message:
>> "[WARNING] Less than 16384MB of memory is available".
>>
>
> Please open a bug with all the details, we should address that.
>

Currently we are tuning the java heap size to 1/4 of the system memory.
On hosted-engine-setup side we propose to assign to the engine VM 16GB (so
java heap = 4GB) as recommended and 4GB as a minimum suggested value.



>
>> Why is all that required if the real usage doesn't show that need ? Or am
>> I missing anything ?
>>
>> Fernando Frediani
>>
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>> http://lists.ovirt.org/mailman/listinfo/users
>>
>
>
>
> --
> Doug
>
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