How do you clean a juju disk or make it larger?

[Rick Harding]

Thanks for the added detail Daniel. Glad you got the resize worked out.

On Wed, Jun 13, 2018 at 9:36 AM Daniel Bidwell <drbidwell at gmail.com> wrote:

> My case was using VmWare as the cloud.  The controllers defaulted to
> 10GB.  I am running juju 2.3.8.  I have about 12 vm's on the controller
> with about 24 locally written charms.  /var/lib/juju/db is currently
> using 8.3GB.
>
> The simplest solution for me was to increase the root disk size and
> reboot the controller.  The cloud-init process resized the partition to
> fill the rest of the disk and then resized the file system to fill the
> enlarged partition.
>
> I am not concerned about the size so much as I needed to finish
> deploying my spread of servers.
>
> I did clean out a group of old kernels that had accumulated as well as
> old versions of juju that I had upgraded from, but those were
> incidental.
>
> I posted the question and solution to askubuntu.com so others could
> find the answer easily if they hit the same problem.
>
> On Wed, 2018-06-13 at 16:06 +0400, John Meinel wrote:
> > IIRC older Juju used the default EC2 settings, which gave 8GB hard
> > drives, but newer should default to 32GB disks. I'm not sure how that
> > varies across all providers, though.
> >
> > Note that you should always be able to bootstrap with a custom root-
> > disk constraint. eg "juju bootstrap --bootstrap-constraints root-
> > disk=32G"
> >
> > As for issues about the disk filling up, it would be good to have a
> > bit more information about what juju version, what types of workloads
> > you're deploying, etc. The data might be stale charm binaries that
> > are being cached by the server, or if it is Juju 1.X then it could be
> > image caches, or transaction log issues, etc.
> >
> > John
> > =:->
> >
> > On Tue, Jun 12, 2018 at 9:12 AM, Paul Gear <paul.gear at canonical.com>
> > wrote:
> > > On 11/06/18 01:47, Daniel Bidwell wrote:
> > > > My juju controllers appear to be defaulting to a 10GB root disk.
> > > I am
> > > > running out of disk space on the controller. I have 6.7GB in
> > > > /var/lib/juju/db. Is there a way to reduce the disk usage on
> > > this?
> > >
> > > I think perhaps this is worth logging as a wishlist bug. A long-
> > > running
> > > production juju controller should never be deployed with a disk
> > > that
> > > small (our largest production cluster is already a little
> > > uncomfortable
> > > with 50 GB), and juju doesn't really distinguish between "this is a
> > > CI
> > > controller that's only going to be up long enough to run my test
> > > suite"
> > > and "this is going to run all of my production OpenStack VMs for
> > > the
> > > next year". It would be nice if you could tell it "size the
> > > controller
> > > for N live models".
> > >
> > > > If not, can I make the root disk larger? What are my options?
> > >
> > > That all depends on your underlying cloud infrastructure.  I
> > > believe
> > > some providers (e.g. GCE) make this really easy.
> > >
> > > > I have already cleared out kernel updates.
> > >
> > > Not directly related to juju controller sizing, but relevant to the
> > > above: I've been working on a little tool that handles many of the
> > > common scenarios we encounter, including kernel updates and other
> > > tools
> > > you may or may not use.  It's alpha quality; feedback & patches
> > > gratefully accepted:
> > >
> > > https://code.launchpad.net/~paulgear/+git/cleanup
> > >
> > > --
> > > Regards,
> > > Paul Gear
> > > Site Reliability Engineer
> > > Canonical - Information Systems
> > >
> > >
> > > --
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> > > Juju at lists.ubuntu.com
> > > Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman
> > > /listinfo/juju
> > >
> --
> Daniel Bidwell <drbidwell at gmail.com>
>
>
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