perfparse-users

[Perfparse-users] Question about the perfparse pipe method

[John V. <lus...@gm...>]

We've been using the perfparse pipe method successfully for over a year now=
.=20
We're very happy with the whole setup.

However I have a need where I need to create rrdtool style graphs with=20
multiple values. What I would like to do is monitor the pipe with an=20
external process and insert the data into an rrd file for creating these=20
graphs. I don't want to run another monitor and double the number of times =
I=20
poll a server. I'm getting the data I need from Nagios just fine.

From my own tests with creating a pipe and running two tail sessions agains=
t=20
the pipe, only the last attached reader gets the data from the pipe. Is=20
there a safe way to from the perfparse pipe so that I don't interrupt=20
perfparse and cause missed perfomance data?

This is probably more of a general Linux question but for some reason, the=
=20
answer seems to be eluding me.

Thanks.

--=20
John E. Vincent
lus...@gm...

Re: [Perfparse-users] Question about the perfparse pipe method

[John C. <po...@ya...>]

Perhaps you could use "tee"? I've not used it in your
specific scenario, but maybe it will get you moving
down a good path.

Maybe some of the examples here will help
http://www.cpqlinux.com/redirect.html

HTH!
-John

--- John Vincent <lus...@gm...> wrote:

> We've been using the perfparse pipe method
> successfully for over a year now. 
> We're very happy with the whole setup.
> 
> However I have a need where I need to create rrdtool
> style graphs with 
> multiple values. What I would like to do is monitor
> the pipe with an 
> external process and insert the data into an rrd
> file for creating these 
> graphs. I don't want to run another monitor and
> double the number of times I 
> poll a server. I'm getting the data I need from
> Nagios just fine.
> 
> From my own tests with creating a pipe and running
> two tail sessions against 
> the pipe, only the last attached reader gets the
> data from the pipe. Is 
> there a safe way to from the perfparse pipe so that
> I don't interrupt 
> perfparse and cause missed perfomance data?
> 
> This is probably more of a general Linux question
> but for some reason, the 
> answer seems to be eluding me.
> 
> Thanks.
> 
> -- 
> John E. Vincent
> lus...@gm...
> 



		
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Yahoo! Mail - PC Magazine Editors' Choice 2005 
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Re: [Perfparse-users] Question about the perfparse pipe method

[Yves <yme...@pe...>]

I have not worked on it for a long time, but I remember that I wrote the =
stdout plugin
for that.
Try to load your favorite plugin and the stdout plugin. Then use the outp=
ut of the
stdout plugin to inject the data into your other program.

Yves

> Perhaps you could use "tee"? I've not used it in your
> specific scenario, but maybe it will get you moving
> down a good path.
>
> Maybe some of the examples here will help
> http://www.cpqlinux.com/redirect.html
>
> HTH!
> -John
>
> --- John Vincent <lus...@gm...> wrote:
>
>> We've been using the perfparse pipe method
>> successfully for over a year now.
>> We're very happy with the whole setup.
>>
>> However I have a need where I need to create rrdtool
>> style graphs with
>> multiple values. What I would like to do is monitor
>> the pipe with an
>> external process and insert the data into an rrd
>> file for creating these
>> graphs. I don't want to run another monitor and
>> double the number of times I
>> poll a server. I'm getting the data I need from
>> Nagios just fine.
>>
>> From my own tests with creating a pipe and running
>> two tail sessions against
>> the pipe, only the last attached reader gets the
>> data from the pipe. Is
>> there a safe way to from the perfparse pipe so that
>> I don't interrupt
>> perfparse and cause missed perfomance data?
>>
>> This is probably more of a general Linux question
>> but for some reason, the
>> answer seems to be eluding me.
>>
>> Thanks.
>>
>> --
>> John E. Vincent
>> lus...@gm...
>>
>
>
>
>
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> http://mail.yahoo.com
>
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