[Gluster-devel] [Gluster-users] Proposal to deprecate replace-brick for "distribute only" volumes

[Atin Mukherjee]

Makes sense.

On Thu, 16 Mar 2017 at 06:51, Raghavendra Talur <rtalur at redhat.com> wrote:

> Hi,
>
> In the last few releases, we have changed replace-brick command such
> that it can be called only with "commit force" option. When invoked,
> this is what happens to the volume:
>
> a. distribute only volume: the given brick is replaced with a empty
> brick with 100% probability of data loss.
> b. distribute-replicate: the given brick is replaced with a empty
> brick and self heal is triggered. If admin is wise enough to monitor
> self heal status before another replace-brick command, data is safe.
> c. distribute-disperse: same as above in distribute-replicate
>
> My proposal is to fully deprecate replace-brick command for
> "distribute only" volumes. It should print out a error "The right way
> to replace brick for distribute only volume is to add brick, wait for
> rebalance to complete and remove brick" and return a "-1".
>
> Thoughts?
>
> Thanks,
> Raghavendra Talur
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>
-- 
--Atin
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