Re: RHEL 32 bit + Oracle SE One max memory?
- From: Jared Still <jkstill@xxxxxxxxx>
- To: william.muriithi@xxxxxxxxxxxxxxxxxxx
- Date: Thu, 16 Dec 2010 15:35:28 -0800
On Thu, Dec 16, 2010 at 12:03 PM, William Muriithi <
william.muriithi@xxxxxxxxxxxxxxxxxxx> wrote:
> The other problem is, if there is an exhaustion of lower memory, OOM killer
> will attempt to clear memory and once in a while, that will result to the
> database being the candidate. That can result in data inconsistency and a
> rough night. So why use a 32 bit kernel when the 64 bit kernel has long
> been so stable and reliable? Seriously, I can not think of a single reason
> why it would be preferable to use a 32 bit RHEL5. Unless you really have
> fun fighting unnecessary fires
>
>
This bit from Note 452000.1 may also be helpful:
*The Kernel is out of LowMem (32-bit architectures only)*
"LowFree" in /proc/meminfo is very low, but HighFree is much higher. OOM
killer will take action under that situation. *The specific workload may
benefit from being run on a 64-bit architectures *or other methods (See Note
452326.1<https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&id=452326.1>)
.
Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist
Oracle Blog: http://jkstill.blogspot.com
Home Page: http://jaredstill.com
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