Re: Cfexecd enhancements

[Mark . Burgess]

Bas, you are not telling me what I want to know. Why is the locking
not doing its job? Is it because you are resetting IfElapsed to one minute?

M

On  2 Apr, Bas van der Vlies wrote:
> Mark,
> 
>  The answer is in this mail I run cfengine 4 times a hour:
>   Quarterly     = (  Min00_05 Min15_20 Min30_35 Min45_50  )
>   schedule = (  Min00_05 Min15_20 Min30_35 Min45_50 ) 
>   IfElapsed = ( 1 )
> 
>   With this schedule interval cfagent will run:
>     Min00
>     Min01
>     Min02
>     Min03
>     Min04 
>     Min05
> 
>   I thought cfexecd only starts cfagent once in a five minute interval, but
>   in my situation this was not true. So that is why i patched cfexecd to make
>   sure it only run once in a 5 minute interval!
> 
> On 02-Apr-2002 address@hidden wrote:
>> 
>> How can it not work? Can you give more info?
>> 
>> M
>> 
>> On  2 Apr, Bas van der Vlies wrote:
>>> I have run it with the verbose flag and i got 4 a 5 emails in a 5 minute 
>>> interval. So the lock mechanism did no work for me.
>>> 
>>>                 Regards
>>> 
>>> On 28-Mar-2002 Andrews, Martin wrote:
>>>> Should work all the time - run cfexecd with the verbose flag. You should
>>>> see
>>>> cfexecd wake up every minute, but only once every five minutes will it
>>>> succeed in acquiring the lock and run cfagent.
>>>> 
>>>> Martin
>>>> 
>>>> -----Original Message-----
>>>> From: Bas van der Vlies [mailto:address@hidden
>>>> Sent: Thursday, March 28, 2002 10:28 AM
>>>> To: Martin Andrews
>>>> Cc: address@hidden; address@hidden
>>>> Subject: Re: Cfexecd enhancements
>>>> 
>>>> 
>>>> 
>>>> I'm using version 2.0.0 final, must i use a keyword to activate it?
>>>> 
>>>> 
>>>> On 28-Mar-2002 Martin Andrews wrote:
>>>>> I had supplied a patch to Mark that did this limit control using locks. It
>>>> 
>>>>> had the bonus limiting runs to minimum of 5 minute intervals whether they 
>>>>> came from cfexecd or cfservd. I though this patch made it into the final
>>>> 2.0 
>>>>> release. Just checked and it seems to be there. What version of cfengine
>>>> are 
>>>>> you using?
>>>>> 
>>>>> Martin
>>>>> 
>>>>> On Thursday 28 March 2002 06:45 am, Bas van der Vlies wrote:
>>>>>> Mark,
>>>>>>
>>>>>>  I have a solution to only run cfagent once in a 5 minute interval. Is
>>>>>> quite
>>>>>>  easy. The patch is included in the attachment.
>>>>>>
>>>>>>         Regards
>>>>>>
>>>>>> On 28-Mar-2002 address@hidden wrote:
>>>>>> > Cfexecd stuff is one of the next things that I'll be looking at.
>>>>>> > I cannot respond to this now, but I'll come back to it. Feel free
>>>>>> > to send suggestions, but bear in mind that cfexecd and cfenvd are
>>>>>> > the primary focus of my research now, so there will be developments
>>>>>> > there.
>>>>>> >
>>>>>> > M
>>>>>> >
>>>>>> > On 28 Mar, Bas van der Vlies wrote:
>>>>>> >> On 28-Mar-2002 Bas van der Vlies wrote:
>>>>>> >>> I'am using the standalone cfexecd-daemon. So that cfexecd can check
>>>>>>
>>>>>> if cron
>>>>>>
>>>>>> >>> is
>>>>>> >>> running and visa-versa.
>>>>>> >>>
>>>>>> >>> I run cfagent 4 times an hour with the follwing setup:
>>>>>> >>> groups:
>>>>>> >>>   Quarterly     = ( Min15_20 Min30_35 Min45_50 Hourly QTest HTest )
>>>>>> >>>
>>>>>> >>> control:
>>>>>> >>>   schedule = (  Min00_05 Min15_20 Min30_35 Min45_50 )
>>>>>> >>>   IfElapsed = ( 1 )
>>>>>> >>>
>>>>>> >>>
>>>>>> >>> In this situation cfagent will run about 17 times in a hour. I know
>>>>>>
>>>>>> i can
>>>>>>
>>>>>> >>> set
>>>>>> >>> IfElapsed = 5 or higher will prevent cfagent to do something. But i
>>>>>>
>>>>>> only
>>>>>>
>>>>>> >>> want
>>>>>> >>> to
>>>>>> >>> run cfagent once in that period. Can this be done?
>>>>>> >>>
>>>>>> >>> My second remark is if i update the cfagent.conf and in cfagent.conf
>>>>>>
>>>>>> there
>>>>>>
>>>>>> >>> is
>>>>>> >>> a
>>>>>> >>> new schedule,sysadm or smtpserver. It will not be seen until we
>>>>>>
>>>>>> restart the
>>>>>>
>>>>>> >>> daemon. Can the cfexecd not reread its variables? It can be easily
>>>>>>
>>>>>> be done
>>>>>>
>>>>>> >>> to
>>>>>> >>> put the GetCfStuff() function inside the while loop.
>>>>>> >>
>>>>>> >> I hate to reply to my own message, but the second remark is NOT true.
>>>>>> >> cfexecd
>>>>>> >> reread its variables after cfagent has run!!
>>>>>> >> --
>>>>>> >> ********************************************************************
>>>>>> >> *                                                                  *
>>>>>> >> *  Bas van der Vlies                     e-mail: address@hidden      *
>>>>>> >> *  SARA - Academic Computing Services    phone:  +31 20 592 8012   *
>>>>>> >> *  Kruislaan 415                         fax:    +31 20 6683167    *
>>>>>> >> *  1098 SJ Amsterdam                     WWW:    www.sara.nl       *
>>>>>> >> *                                                                  *
>>>>>> >> ********************************************************************
>>>>>> >>
>>>>>> >> _______________________________________________
>>>>>> >> Bug-cfengine mailing list
>>>>>> >> address@hidden
>>>>>> >> http://mail.gnu.org/mailman/listinfo/bug-cfengine
>>>>>> >
>>>>>> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>>> > Work: +47 22453272            Email:  address@hidden
>>>>>> > Fax : +47 22453205            WWW  :  http://www.iu.hio.no/~mark
>>>>>> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>> 
>>>>> -- 
>>>>> Martin Andrews
>>>>> LION bioscience Inc.
>>>>> address@hidden
>>>> 
>>>> --
>>>> ********************************************************************
>>>> *                                                                  *
>>>> *  Bas van der Vlies                     e-mail: address@hidden      *
>>>> *  SARA - Academic Computing Services    phone:  +31 20 592 8012   *
>>>> *  Kruislaan 415                         fax:    +31 20 6683167    *
>>>> *  1098 SJ Amsterdam                     WWW:    www.sara.nl       *
>>>> *                                                                  *
>>>> ********************************************************************
>>> 
>>> --
>>> ********************************************************************
>>> *                                                                  *
>>> *  Bas van der Vlies                     e-mail: address@hidden      *
>>> *  SARA - Academic Computing Services    phone:  +31 20 592 8012   *
>>> *  Kruislaan 415                         fax:    +31 20 6683167    *
>>> *  1098 SJ Amsterdam                     WWW:    www.sara.nl       *
>>> *                                                                  *
>>> ********************************************************************
>> 
>> 
>> 
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> Work: +47 22453272            Email:  address@hidden
>> Fax : +47 22453205            WWW  :  http://www.iu.hio.no/~mark
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> 
> 
> --
> ********************************************************************
> *                                                                  *
> *  Bas van der Vlies                     e-mail: address@hidden      *
> *  SARA - Academic Computing Services    phone:  +31 20 592 8012   *
> *  Kruislaan 415                         fax:    +31 20 6683167    *
> *  1098 SJ Amsterdam                     WWW:    www.sara.nl       *
> *                                                                  *
> ********************************************************************



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Work: +47 22453272            Email:  address@hidden
Fax : +47 22453205            WWW  :  http://www.iu.hio.no/~mark
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