Hi,
I have questions about OCCI Monitoring.
I read the specifications [0] and the Slideshare's presentation [1]
of Augusto Ciuffoletti.
I would like some clarifications, just be sure I understand
correctly the scope of this specification.
In the same way than OCCI Infrastructure provides an API to create
infrastructure resources (virtual machines, network
configurations...), OCCI Monitoring allows to configure probes and
measures collection. So, assuming I have a model of OCCI resources
associated with the following Software architecture...
... that is to say machines, network and storage resources (IaaS),
applicative resources (web server, application server, database -
and assuming I wrote OCCI extensions for them), then OCCI Monitoring
would allow me to configure their monitoring through a single (REST)
API. One API to configure the monitoring of several cloud layers /
providers. So far, so good, right?
What is not clear to me for the moment is the following.
Does this API also allow to request directly a sensor? Assuming I
have a sensor that collect CPU usage, is it this same API that can
give me the probe's value (i.e. the CPU usage at this specific
moment)? This is not the same question than "can I implement a
sensor / collector / publisher that makes my monitoring data
available through a REST service" (to this, the answer is definitely
yes). For what I understand, the answer is no. OCCI Monitoring is
about monitoring configuration, not about monitoring itself. An API
that implements OCCI Monitoring is not an API that exposes a probe
as a REST service (or at least, it is not its spirit). This has the
great advantage of letting users keep the rendering / analyzing
tools they want.
I was also wondering whether there were real implementations of OCCI
Monitoring.
I saw Augusto will present "Beyond Nagios
- Design of a cloud monitoring system" in Rome, in April.
Unfortunately, I will not be able to attend it. What level of
maturity does it have?
Best regards,
Vincent.
[ 0 ] : https://redmine.ogf.org/attachments/182/monitoring.pdf
[ 1 ] :
http://slideshare.net/AugustoCiuffoletti/2013-03-occimonitoring-26159563