openstack team mailing list archive

[Joshua Harlow <harlowja@xxxxxxxxxxxxx>]

Just from experience.

They do a great job. But the killer thing about caching is how u do the cache invalidation.

Just caching stuff is easy-peasy, making sure it is invalidated on all servers in all conditions, not so easy...

On 3/22/12 4:26 PM, "Sandy Walsh" <sandy.walsh@xxxxxxxxxxxxx> wrote:

We're doing tests to find out where the bottlenecks are, caching is the
most obvious solution, but there may be others. Tools like memcache do a
really good job of sharing memory across servers so we don't have to
reinvent the wheel or hit the db at all.

In addition to looking into caching technologies/approaches we're gluing
together some tools for finding those bottlenecks. Our first step will
be finding them, then squashing them ... however.

-S

On 03/22/2012 06:25 PM, Mark Washenberger wrote:
> What problems are caching strategies supposed to solve?
>
> On the nova compute side, it seems like streamlining db access and
> api-view tables would solve any performance problems caching would
> address, while keeping the stale data management problem small.
>

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