[heketi-devel] Start Heketi setup afresh

[Raghavendra Talur]

On Thu, Sep 28, 2017 at 7:42 PM, Gaurav Chhabra
<varuag.chhabra at gmail.com> wrote:
> Thanks for the response Talur. I will really appreciate if you already have
> the steps for cleaning up the setup so i could start afresh.
>

I don't have the steps handy. Will work on it and send a PR on Monday.

>
> Regards,
> Gaurav
>
>
> On Thu, Sep 28, 2017 at 5:36 PM, Raghavendra Talur <rtalur at redhat.com>
> wrote:
>>
>> On Wed, Sep 27, 2017 at 11:27 PM, Gaurav Chhabra
>> <varuag.chhabra at gmail.com> wrote:
>> > Hi,
>> >
>> >
>> > I tried setting up Gluster cluster on Google cloud. It went fine. I
>> > always
>> > stop the test instances when not in use. One day, when i started my
>> > Gluster
>> > instances, few bricks went offline and i tried bringing them up but i
>> > couldn't. I then tried removing the volumes but it gave me error related
>> > to
>> > "device in use" and i think i also saw "bricks in use" messages. I tried
>> > removing bricks but i couldn't. I finally thought of removing the extra
>> > raw
>> > disks from all nodes that i initially added. But i guess Heketi was
>> > unable
>> > to forget its past. I finally had to discard all the machines and
>> > created a
>> > fresh three node cluster. :( All i wanted was to have a clean slate to
>> > start
>> > with. In next two-three days, i will be starting with the actual setup
>> > on
>> > live environment and using it for managing Kubernetes. Though in that
>> > case,
>> > i will not be shutting down the cluster when not in use :) but i am
>> > wondering if there is a way of resetting all things (bricks, volumes,
>> > devices, nodes) in Gluster and Heketi, if such case arises, so i could
>> > start
>> > afresh with the Heketi setup. Data backup is not a concern here as i am
>> > considering this scenario only during the initial setup phase.
>> >
>> >
>> > Regards,
>> > Gaurav
>> >
>>
>> Heketi does provide you mechanism to disable and remove devices/nodes.
>> Once that is performed you can delete them. Yes, it is a iterative
>> process at the end of which you will be left with nothing in topology.
>>
>> One thing to note is that you need to clean the disks of partition
>> info for heketi to reuse them.
>>
>> Also, everything that heketi knows is in the db. If you delete the db
>> file you have essentially created a fresh heketi instance. You will
>> still have to clean the disks and gluster information though.
>>
>> Let us know if you are looking for a step by step guide to get this done.
>>
>> Talur
>>
>> > _______________________________________________
>> > heketi-devel mailing list
>> > heketi-devel at gluster.org
>> > http://lists.gluster.org/mailman/listinfo/heketi-devel
>> >
>
>