
I wrote a mon script to monitor swap use because catching systems when memory use gets excessive before they go Oom is a good thing. When I deployed it I was notified of one of my servers which had 99% of the 2G of swap used but also 7G of "buff/cache" memory according to top and seemed to be running nicely like that. Would it give a better result to ignore the amount of swap in use and instead monitor the percentage of RAM used for buff/cache? -- Sent from my Huawei Mate 9 with K-9 Mail.

On 19.06.19 17:14, Russell Coker via luv-main wrote:
I wrote a mon script to monitor swap use because catching systems when memory use gets excessive before they go Oom is a good thing.
When I deployed it I was notified of one of my servers which had 99% of the 2G of swap used but also 7G of "buff/cache" memory according to top and seemed to be running nicely like that.
Would it give a better result to ignore the amount of swap in use and instead monitor the percentage of RAM used for buff/cache? -- Sent from my Huawei Mate 9 with K-9 Mail.
What about reporting both? Then users could get a feel for how the balance pans out for them, I figure. (Assuming that the script is destined for the wild?) This aging host is growing slow, and checking up on what happens especially when iceweasel ploughs into treacle, would be useful. Mind you, sometimes X just locks up, and I'd have to find and fire up another host to whack it through ssh. Reset works. Erik

On Wednesday, 19 June 2019 5:42:09 PM AEST Erik Christiansen via luv-main wrote:
On 19.06.19 17:14, Russell Coker via luv-main wrote:
I wrote a mon script to monitor swap use because catching systems when memory use gets excessive before they go Oom is a good thing.
When I deployed it I was notified of one of my servers which had 99% of the 2G of swap used but also 7G of "buff/cache" memory according to top and seemed to be running nicely like that.
Would it give a better result to ignore the amount of swap in use and instead monitor the percentage of RAM used for buff/cache? -- Sent from my Huawei Mate 9 with K-9 Mail.
What about reporting both? Then users could get a feel for how the balance pans out for them, I figure. (Assuming that the script is destined for the wild?)
It's designed for common usage, it's in the "mon" package in Debian. But I try to avoid adding useless features and to make defaults that are reasonably useful.
This aging host is growing slow, and checking up on what happens especially when iceweasel ploughs into treacle, would be useful.
Mind you, sometimes X just locks up, and I'd have to find and fire up another host to whack it through ssh. Reset works.
I've been meaning to get into monit which can restart things automatically. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/
participants (2)
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Erik Christiansen
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Russell Coker