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From benjamin roth <brs...@gmail.com>
Subject Re: Multiple nodes decommission
Date Tue, 11 Apr 2017 16:55:31 GMT
I did not test it but I'd bet that parallel decommision will lead to
inconsistencies.
Each decommission results in range movements and range reassignments which
becomes effective after a successful decommission.
If you start several decommissions at once, I guess the calculated
reassignments are invalid for at least one node after the first node
finished the decommission process.

I hope someone will correct me if i am wrong.

2017-04-11 18:43 GMT+02:00 Jacob Shadix <jacobshadix@gmail.com>:

> Are you using vnodes? I typically do one-by-one as the decommission will
> create additional load/network activity streaming data to the other nodes
> as the token ranges are reassigned.
>
> -- Jacob Shadix
>
> On Sat, Apr 8, 2017 at 10:55 AM, Vlad <qa23d-vvd@yahoo.com> wrote:
>
>> Hi,
>>
>> how multiple nodes should be decommissioned by "nodetool decommission"-
>> one by one or in parallel ?
>>
>> Thanks.
>>
>
>

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