Hi all:
Okay I am adding additional information to the RFC so hopefully this
will make it more clear. I hope to get this implemented soon so that I
can put Ganglia into SVN as a provided package.
In the previous email I have described what config.xml and the tags will
look like, now I would like to describe the new table that needs to be
added to oscar:
packages_servicelists
---------------------
fields: service (name of service, eg. gmond, gmetad)
__group (which group this service belongs to: eg.
oscar_server, oscar_clients)
package_id (ID number of the package)
We also need to write some API code to gather all the services that a
current node is providing. This can be determined by:
1) Getting a list of all the packages installed on the node
2) Getting a list of all the services which are provided by all the
packages installed on the node
With this list of service names, I simply need to write a routine to
either start/stop all of the services.
Lastly, I will have to modify DelNode.pm to execute the stopping of
services on the node, (and possibly restart the server services), before
the node is actually deleted.
That's all - I hope this makes sense. I plan to implement this ASAP.
Thanks,
Bernard
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Bernard Li
> Sent: Thursday, September 16, 2004 17:31
> To: [EMAIL PROTECTED]
> Subject: [Oscar-devel] RFC: OSCAR Package config.xml field
> addition - service
>
> Hi there:
>
> I would like to propose that we add a new field in OSCAR
> Package's config.xml file called 'service'. This would store
> the name of the service which a package provides. It could
> be divided up like the rpmlist into server and client, an
> example for Ganglia:
>
> <servicelist>
> <service>gmond</service>
> </servicelist>
> <servicelist>
> <filter group="oscar_server"/>
> <service>gmetad</service>
> </servicelist>
>
> This information also needs to be stored in ODA, could be
> useful for cases when you want to remove a node, you can get
> back a list of services from all the packages that are
> installed on the node and turn off all the services before
> removing the node from the system.
>
> (The rationale here is right now, if you remove a node with
> Ganglia installed, it still sends information back to the
> headnode so that is not good).
>
> Thanks,
>
> Bernard
>
>
>
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