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Pierre de La Motte wrote:
> Hi Peter,
> thx for the help.
> After testing and checking syslog and other messages/dmesg I discovered 
> that I had a hardware failure almost exactly at the time (in mn) at 
> which the profile expired. As a result, and due to a misconfiguration, 
> the disk on whuch profiles-data sit was not mounted back. Hence the 
> disappearance.
> Could you precise your comment "independently regardless of the fill 
> size of the file system"? I understand it as expire process is only 
> driven by the parameters defined in the profile, there no actual double  
> check of the value of these parameters wrt the actual space available 
> (at set up or during the life of the profile) . Which is fine with me.

That's correct.

        - Peter

> Best regards
> Pierre
> Peter Haag wrote:
> Hi Pierre,
> There are a few things to note:
> 
> Up to and including nfsen-1.3 profiles expire independently regardless of the 
> fill size of the file system.
> This means you have to take care that the file system does not get 
> overcrowded.
> 
> Each profile has 2 parameters to play: size and lifetime. Profiles are 
> expired when ever one of the limits are reached.
> Expiring is down to limit * watermark. An appropriate watermake could be 95% 
> for example. Say you have set a size limit
> of 100M and your profile is larger than that, in will expire down to 95M 
> during the next expire cycle. This also means
> do not set you watermark too low, or your files will get fully 
> deleted.However, the data-directory never gets deleted
> anyway.
> 
>       - Peter
> 
> Pierre de La Motte wrote:
>   
>>>> Hi,
>>>> first thank you very much for the NFSen tool suit, it is a great piece 
>>>> of monitoring solution.
>>>> I am currently trying to solve the same "issue" Ewald was addressing in 
>>>> his December email, meaning keeping my disk usage within fixed boundaries.
>>>> My requirement: to have a process pruning the oldest Nfcapd capture 
>>>> files in profile data without impacting my "live" profile, and depending 
>>>> profiles, stats. The pruning would of course limit the ability to go 
>>>> back in the past to draw detailed report to the still existing nfcapd 
>>>> files. But the profile would continue to provide graphing  and reporting 
>>>> on the current data and  would keep a graph history of the report 
>>>> filters  associated with channels
>>>> Reading the help in stats, I was not so sure of the meaning of 
>>>> "expiring", basically whether it was meaning what is described above 
>>>> (pruning capability) or if it was meaning that the profile would turn 
>>>> into a history profile.
>>>> Based on the answers to Ewald, I deduced that the answer would be the 
>>>> first alternative.
>>>> To test that I defined a Max Size in my "live" channel and waited for 
>>>> the result.
>>>> The result has been that when the defined limit was reached, my 
>>>> profiles-data directory, and sub-directories, was no more existing. 
>>>> Everything was gone, including the directory structure and the root 
>>>> directory. My live profile was no more processing live data.
>>>> On the other hand, the stat directory, and all dependencies, was still 
>>>> there.
>>>> It seems that I missed a point somewhere.
>>>> How should I proceed to implement the pruning scheme defined above?
>>>> How can I reactivate my current live profile? (I changed back the max 
>>>> size to 0 and tried "nfsen reconfig" without success - It seems that I 
>>>> need to stop nfsen, recreate manually the directory tree to allow Nfsen 
>>>> to correctly invoke nfcapd then restart nfsen)
>>>>
>>>> Best regards
>>>> Pierre
>>>>
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>>>>     
>>

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_______ SWITCH - The Swiss Education and Research Network ______
Peter Haag,  Security Engineer,  Member of SWITCH CERT
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