Re: more user friendly filesystem space messages and checks

[Martin Pala]

Hi,

fixed in the development version, will be part of next Monit release (5.12).

Regards,
Martin


> On 04 Feb 2015, at 06:15, Weedy <address@hidden> wrote:
> 
> I have 5.10 installed and I still get this.
> I would like to receive the remaining free space in GiB or MiB if low enough.
> 
>  check filesystem home with path /dev/md2
>    if space usage gt 5035 GB for 5 times within 15 cycles then alert
>    if space usage gt 5039 GB then alert
> 
> Resource limit matched Service home
> 
>        Date:        Tue, 03 Feb 2015 18:46:44
>        Action:      alert
>        Description: space usage 1321079524 blocks matches resource
> limit [space usage>1320941372 blocks]
> 
> On Wed, Oct 29, 2014 at 3:27 AM, Martin Pala <address@hidden> wrote:
>> Hello,
>> 
>> the space usage messages (and any other "byte" unit based values) were 
>> modified in Monit 5.9 to automatically scale the unit ... please upgrade 
>> your Monit.
>> 
>> Regarding the second request ... you can use the percent-based space usage 
>> check instead of absolute value => it doesn't require looking at disk size. 
>> For example:
>> 
>>        if space usage > 95% then alert
>> 
>> 
>> Regards,
>> Martin
>> 
>> 
>>> On 29 Oct 2014, at 07:16, Do <address@hidden> wrote:
>>> 
>>> Hello,
>>> 
>>> Now Monit send messages like this
>>> 
>>>> Subject: monit alert --  Resource limit matched root
>>>> Resource limit matched Service root
>>>> 
>>>>       Date:        Wed, 29 Oct 2014 08:55:54
>>>>       Action:      alert
>>>>       Host:        db
>>>>       Description: space usage 42075215 blocks matches resource limit 
>>>> [space usage>26214355 blocks]
>>> 
>>>> From this, normal human can not understand at a glance how much resources 
>>>> is matched: is it 1024 or 4096 blocks filesystem? I didn't set up check in 
>>>> 'blocks', I set them in GB.
>>> 
>>> So, I propose (feature request) to change message format to add used space 
>>> size in GB, and free space in GB.
>>> 
>>> I usually add several checks for filesystem space so when space is filling 
>>> I get several messages. Example, for 45G disk:
>>> 
>>> check filesystem root path /
>>> if space usage > 35 GB then alert
>>> if space usage > 40 GB then alert
>>> if space usage > 43 GB then alert
>>> if space usage > 44 GB then alert
>>> 
>>> But when there is 'blocks' I can not understand at glance how much space is 
>>> filled and free, and how quickly admin need to react on the problem. You 
>>> know, spae cleaning is not always easy task that can be done instantly, 
>>> users may need to be notified, etc.
>>> 
>>> Additional request, why is 'space' controlled with 'usage' check and no 
>>> 'free' check? To set check now, I need to view partition size (to see it's 
>>> 45G or 450G). (Also, when partition size changed need not forget to change 
>>> monit rules.)
>>> 
>>> Without this restriction I could set up my style of checks w/o even looking 
>>> at disk size. Proposed example,
>>> 
>>> check filesystem root path /
>>> if space free < 10 GB then alert
>>> if space free <  5 GB then alert
>>> if space free <  2 GB then alert
>>> if space free <  1 GB then alert
>>> 
>>> Thanks,
>>> Don.
>>> 
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