<p dir="ltr">Thanks for your help,</p>
<p dir="ltr">I appreciate youe replies. I am using snmp and cacti is installed in different server.</p>
<p dir="ltr">Kind regards.</p>
<div class="gmail_quote">El 16/3/2015 9:09 a. m., "Simon Hobson" <<a href="mailto:linux@thehobsons.co.uk">linux@thehobsons.co.uk</a>> escribió:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">> I notice that my backend use to take all available memory.<br>
><br>
> I use to monitor the backend with Cacti, here are some graphics:<br>
><br>
> Daily physical memory: <a href="http://postimg.org/image/hony65809/" target="_blank">http://postimg.org/image/hony65809/</a><br>
<br>
Ah, can see the graphs now.<br>
Looking at that daily one, it's completely normal. What you see at around 15:45 to 16:45 is that something has released a chunk of memory and the system has been idle. Best guess is that something fired up and used memory - thus forcing the system to clear some cache space and release it. When that process finished and releases the memory - you get the dip in used memory you can see. Then later, something has started up that's creating an opportunity to expand the cache again.<br>
<br>
On the earlier blip (around 15:15) you can see that the trailing edge has a distinct slope to it - so whatever causes the cache to expand did so more slowly. Did a recording happen to start then by any chance ?<br>
<br>
<br>
<br>
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