Live nodes that have tokens indicating they should receive a copy of
data count towards write quorum. This means if a node is down (not
decommissioned) the copy sent to the node acting as the hinted handoff
replica will not count towards achieving quorum. If a token is moved,
it is moved. It is
> Increasing the replication level is known to break it.
Thanks! Yes, of that I am aware. When I said ring changes I meant
nodes being added and removed, or just re-balanced, implying tokens
moving around the ring.
--
/ Peter Schuller aka scode
Increasing the replication level is known to break it.
--Original Message--
From: Peter Schuller
Sender: sc...@scode.org
To: user@cassandra.apache.org
ReplyTo: user@cassandra.apache.org
Subject: Quorom consistency in a changing ring
Sent: Apr 26, 2010 21:55
Hello,
Is my interpretation
Hello,
Is my interpretation correct that Cassandra is intended to guarantee
quorom consistency (overlapping read/write sets) at all times,
including a ring that is actively changing? I.e., there are no
(intended) cases where qurom consistency is defeated due to writes or
reads going to nodes that
