On 08/02/2012 08:45 PM, Chiradeep Vittal wrote:
True. Ideally performance (and other) monitoring should be an optional
service (module) with its own API etc.
Wido's proposal does not preclude that design (for the future), it seems
to me.
No, I'm not talking about monitoring here, just reporting statistics of
an instance.
Just like we are accounting CPU and network usage.
It's not my intention to do performance monitoring and reporting, no
just per instance statistics.
Since most Hypervisors already gather this data it's just a matter of
collecting and storing.
Wido
On 8/2/12 10:09 AM, "John Kinsella" <[email protected]> wrote:
Yeah this is fairly hugeŠI'm a KVM guy as well so can't comment on the
other platforms. I've been using an opsview/nagios module that tells me
when a disk has high IOPs, but we haven't added the code yet to look at
the individual VM yet.
I guess the only concern that comes to mind is where's the line between
what your cloud management platform does and what your monitoring
platform does - don't really need repetition.
John
On Aug 2, 2012, at 8:23 AM, Wido den Hollander wrote:
Hi,
I've been thinking about this for a couple of months while working on RBD.
In public clouds it's very important to know which user is (ab)using your
storage, so I figured it could be useful if CloudStack would also support
disk I/O polling.
On the Wiki I started with a document about this:
http://wiki.cloudstack.org/pages/viewpage.action?pageId=11830451
I only have experience with KVM, so I'm not sure if and how other
Hypervisors support this.
For KVM it seems the implementation is rather simple, but I rather not
make this a KVM-only feature.
The first steps will be to lay the groundwork in CloudStack and the
polling for disk IOps and then implement it per Hypervisor.
I'd like some input on other Hypervisors to get a better picture of what
has to be done.
Comments and flames are welcome :)
Wido
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