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List: cassandra-user
Subject: Re: How to debug node load unbalance
From: Lapo Luchini <lapo () lapo ! it>
Date: 2021-03-05 14:15:31
Message-ID: s1tee4$2aq$1 () ciao ! gmane ! io
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Thanks for the explanation, Kane!
In case anyone is curious I decommissioned node7 and things re-balanced
themselves automatically: https://i.imgur.com/EOxzJu9.png
(node8 received 422 GiB, while the others did receive 82-153 GiB,
as reported by "nodetool netstats -H")
Lapo
On 2021-03-03 23:59, Kane Wilson wrote:
> Well, that looks like your problem. They are logical racks and they come
> into play when NetworkTopologyStrategy is deciding which replicas to put
> data on. NTS will ensure a replica goes on the first node in a different
> rack when traversing the ring, with the idea of keeping only one set of
> replicas on a rack (so that a whole rack can go down without you losing
> QUORUM).
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