Matt,
This is really cool stuff, just a few problems actually getting it started.
It looks like I'm missing at least gmetad_dbgprint. Also, GmetadListenSocket
is trying to be imported from gmetad_socketListener despite being in gmetad.py.
Commenting these lines at least got things to the help output:
#from gmetad_dbgprint import dbgPrint
#from gmetad_socketListener import GmetadListenSocket
I was only able to get things started after moving from python2.3 to python2.5
(after making the changes above) due to some changes (?) to the logging module.
I'm fine with that but believe there were changes done to gmond to support
older python versions so I'm curious as to what direction were you were given
in that regard.
Finally, gmetad-python does not like it when the gridname is not set throwing:
File "/home/graph/local/src/gmetad-python/gmetad_data.py", line 44, in
generateKey
return ':'.join(vals)
TypeError: sequence item 1: expected string, NoneType found
where vals is : ['GRID', None].
It seems like it has started collecting metrics now. This is awesome, awesome
stuff - thanks for putting it together.
Thank you,
Gilad
----- Original Message ----
> From: Matt Ryan <[EMAIL PROTECTED]>
> To: [email protected]
> Sent: Saturday, April 19, 2008 12:06:47 AM
> Subject: [Ganglia-developers] python gmetad
>
> Hi,
>
> Attached is a first stab at a python version of gmetad. Brad asked me
> to try rewriting gmetad in python in order to hopefully support future
> extensibility via python modules.
>
> I've included a CHANGELOG file that outlines basically what this python
> gmetad should do and what it doesn't claim to do. It is important to
> emphasize here: This is NOT yet a functional replacement for the
> current gmetad! Basically, what it WILL do is honor the current gmetad
> configuration file (at least the parts it can understand, the others are
> ignored), read gmond data, and offer the aggregated data over the XML
> (8651) and interactive (8652) ports.
>
> Some testing has been done to compare outputs from the current gmetad
> and this python gmetad. They appear to produce functionally equivalent
> XML documents, although this hasn't been extensively tested.
>
>
> What I'm Planning To Do:
> The next thing I'm planning to work on is the summary capability on the
> interactive port. When that is done we should be able to test this new
> gmetad by running it side-by-side with the current gmetad, letting the
> current gmetad generate the RRD files, and the new one respond on 8652
> to web front end queries. In other words, see if the web front end will
> still work with the python gmetad in there.
> After that I'll probably start working on an RRD module. The goal is to
> drive first toward something that has the same functionality as the
> existing gmetad, then start looking at ways to enhance.
>
> I've also got a test engineer on my team who thinks he's going to have
> some free cycles, so hopefully he will be able to create and submit some
> more test scripts.
>
> Of course, the other thing I have to do is fix the bugs that all of you
> are going to file on it. :)
>
>
> What I'm Asking You To Do:
> - If this is of interest to the Ganglia project at all, I'd sure like to
> have it checked in if possible. Probably a discussion needs to take
> place as to where it should go. I don't think it should replace the
> current gmetad, so putting it in that directory seems wrong IMO. Maybe
> a new directory under monitor-core called gmetad-python or something?
> Anyway, if we can resolve where to put it, and if the project wants it,
> then it would be great to get it checked in, so I don't lose the work.
> - Take a look at it and try it out in a safe place. Poke around at it
> and find bugs.
> - Anything else that comes to mind.
>
>
> Installing this is easy. Just put all the files in the same directory,
> then run "python ./gmetad.py". You can add a --help at the end to show
> usage information.
>
>
>
> Please let me know what you think.
>
> --
> Matt Ryan
> Sr. Software Engineer
> Novell, Inc.
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