Brian Gallew created CASSANDRA-13439:
----------------------------------------
Summary: nodetool ring output should reflect rack perturbation
Key: CASSANDRA-13439
URL: https://issues.apache.org/jira/browse/CASSANDRA-13439
Project: Cassandra
Issue Type: Improvement
Components: Distributed Metadata
Reporter: Brian Gallew
Currently, "nodetool ring $KEYSPACE" shows ownership based entirely upon token
distribution. However, the *actual* ownership must also account for rack
information. As an example, for a table with RF=3 in a cluster with three
racks, if the ring order of nodes/racks is, e.g. node1-rack1, node2-rack2,
node3-rack1, node-4rack2, node5-rack3, ...
It will turn out that node5 shares ownership with node1, node2, node3, and
node4 because of rack distribution rules. Not only is this potentially
unexpected, it's also somewhat difficult to reason about exactly how the data
will be distributed. It would be really convenient if nodetool could tell us
this distribution.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
