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Rafal,<br>
See if you have vm.lower_zone_protection set?<br>
# cat /proc/sys/vm/lower_zone_protection<br>
If not set, then set to 100 and viola all your low mem issues should
vanish.<br>
You can use top -p <pid> , for the pid for ocfs2 and see how it
is using memory<br>
<br>
But, with RHEL4 to eliminate any source of an OOM - set
vm.lower_zone_protection=100 in /etc/sysctl.conf<br>
<br>
Regards,<br>
John Peeken<br>
<br>
<br>
<br>
<br>
Rafal Maliszewski wrote:<br>
<blockquote
cite="midece29e440610310757h31824900n9b7309358b5abb1a@mail.gmail.com"
type="cite">Redhat 4ES update 3 - kernel 2.6.9.34-smp<br>
<br>
Something is eating low memory, not highmem.<br>
Howto check that there is not ocfs2??<br>
<br>
<br>
<br>
<div><span class="gmail_quote">On 10/31/06, <b
class="gmail_sendername">
John Peeken, Enterprise Linux Support</b> <<a
href="mailto:john.peeken@oracle.com">john.peeken@oracle.com</a>>
wrote:</span>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000">Rafal,<br>
What version of Red Hat are you using?<br>
cat /proc/meminfo will show us how memory (Low and High) is doing, top
will show how much a process is using of virtual memory<br>
How much memory? What kernel is being used?<br>
Regards,<br>
John Peeken<br>
<br>
<br>
<br>
Rafal Maliszewski wrote:
<blockquote
cite="http://midece29e440610310716i364d29a0sd52ea3820d4fc558@mail.gmail.com"
type="cite">
<div><span class="e" id="q_10e9ef994d3f3148_1">Hi guys<br>
<br>
I have 4 node cluster with OCFS2.<br>
>From time to time redhat fired : oom-killer to kill process with high
amout of memory ( for example tomcat)<br>
<br>
My friends suppose that ocfs2 consume memory.<br>
<br>
So I have question: <br>
How check how many memory is occupied by ocfs processes?<br>
Is it a low memory?<br>
<br>
regards<br>
<br>
<br>
</span></div>
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