juju is slow to do anything

[Marco Ceppi]

Hi Peter (and ScraperWiki team!),

Thanks for contact the list! I'm curious what version of juju do you all
currently use at ScraperWiki? In version of juju < 1.0 we were creating SSH
tunnels to the bootstrap node to create a socket for which to securely
communicate with Zookeeper, which was what we used as our state server.
Since 1.0 we've replaced Zookeeper with SSL secured Mongodb (and an API
server), which means connections to the bootstrap node for querying unit
information and performing actions has increased in speed quite a bit. So
if you're using, say, juju 0.7 you'll still be creating this tedious SSH
tunnels which create overhead in each juju command. If you're using, say,
juju 1.12 then you shouldn't see much latency at all.

As for garbage collection, I think this is still an issue with both our
last 0.X release (0.7) and our latest 1.X release (1.13.2). I know that the
1.0 series of juju release are getting better at allowing you to clean up
services that no longer exist in the topology but it's not quite there yet.

Thanks,

Marco Ceppi
Canonical, Ltd.


On Thu, Aug 29, 2013 at 6:57 AM, Peter Waller <peter at scraperwiki.com> wrote:

> Hi All,
>
> I've just joined ScraperWiki where juju is used to manage our AWS
> deployments.
>
> I don't have any prior juju experience. Is it expected that "juju status"
> and "juju ssh" take more than 30 seconds to do anything? Everyone in my
> organization is experiencing this. It is making it a frustrating tool to
> use at times.
>
> If this isn't normal, are there any obvious culprits I can check to
> diagnose the origin of this delay?
>
> Thanks in advance,
>
> - Peter
>
> p.s. To give some information about our setup:
>
> $ juju status | grep agent-state:  | sort | uniq -c | sort -n
>       1         agent-state: pending
>       1     agent-state: pending
>       7     agent-state: down
>       9     agent-state: started
>      10         agent-state: started
>
> We have quite some machines we're never going to use again, is there a way
> to garbage collect this list?
>
> --
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