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From "Sam Tunnicliffe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-13704) Better reporting of events for out of range tokens
Date Thu, 20 Jul 2017 15:35:00 GMT
Sam Tunnicliffe created CASSANDRA-13704:
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             Summary: Better reporting of events for out of range tokens
                 Key: CASSANDRA-13704
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13704
             Project: Cassandra
          Issue Type: Improvement
          Components: Coordination, Observability
            Reporter: Sam Tunnicliffe


It is possible for nodes to have a divergent view of the ring, which can result in some operations
being sent to the wrong nodes. This is an umbrella ticket to mitigate such issues by adding
logging when a node is asked to perform an operation for tokens it does not own. This will
be useful for detecting when the nodes' views of the ring diverge, which is not highly visible
at the moment, and also for post-hoc analysis.

It may also be beneficial to straight up reject certain operations, though this will need
to balance the risk of performing those ops against the consequences rejecting them has on
availability.



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