good console bases sys monitors

[aaron d]

If you can program it should be fairly trivial to script custom monitoring
using the aforementioned tools, that takes the action of your choice. Reboot
though, as stated before, is a bad habit to get into and generally NEVER the
answer. We aren't running windows here :)


On Sun, Aug 1, 2010 at 5:47 PM, Rajinder Yadav <devguy.ca-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:

>  i know some of those tools, not an avid user of them, will read up.
>
> as for rebooting or restarting errant process, i was thinking of this in
> terms of my own web-server hosting setup, in particular my own rails apps,
> since i would be logging error, i would know what was causing any kind of
> abnormal memory, cpu, network load, it would be a stop gap solution till the
> real issue was rectified in the code or through load balancing, etc.
>
> i heard a talk from the reddit founder talking about fail often, crash
> early and they were using some of this monitoring techniques, it was
> interesting and something to mull over for sure =)
>
> thanks,
> Rajinder
>
>
>
>
> On 10-08-01 08:19 AM, aaron d wrote:
>
> iftop, iostat,  vmstat, free, df ? they aren't monitors in the sense that
> you are talking in the second half of your question (i.e. they don't take
> action, they simply tell you what is going on). In my experience with
> monitoring systems, you generally would not want something just killing off
> random PIDs at it's own discretion, let alone REBOOTING because of a memory
> leak. We never reboot :) Usually you would want to receive some form of
> alert so that you can use these tools to investigate the issue and possibly
> take steps to keep it from happening over and over again. However there may
> be a time when you just want to kill a notoriously bad process (google
> chrome anyone?) if it gets out of hand.
>
>  conky (http://conky.sourceforge.net/) is not a console-based monitor, but
> is very nice, and of course if you are monitoring remotely you could always
> forward X to your local machine.
>
>  -aaron
>
>  On Sat, Jul 31, 2010 at 6:01 PM, Rajinder Yadav <devguy.ca-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org>wrote:
>
>> Other than top, that's as far as my linux-fu gets me =P, what other
>> console based monitors are you guys using that has low cpu load for things
>> like:
>>
>> network activity, file activity, storage space, low memory
>>
>> if the system is overloaded, i'm memory leaks, errant process is there a
>> monitor that will force the server to reboot? i am asking more for an
>> education purpose and not any kind of immediate use
>>
>> Thanks,
>> Rajinder
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>
>
>
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