[jira] [Created] (CASSANDRA-16850) Add client warnings and abort to tombstone and coordinator reads which go past a low/high watermark

["David Capwell (Jira)" <ji...@apache.org>]

David Capwell created CASSANDRA-16850:
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             Summary: Add client warnings and abort to tombstone and coordinator reads which go past a low/high watermark
                 Key: CASSANDRA-16850
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16850
             Project: Cassandra
          Issue Type: Improvement
          Components: Observability/Logging
            Reporter: David Capwell
            Assignee: David Capwell


We currently will abort queries if we hit too many tombstones, but its common that we would want to also warn clients (client warnings) about this before we get that point; its also common that different logic would like to be able to warn/abort about client options (such as reading a large partition).  To allow this we should add a concept of low/high watermarks (warn/abort) to tombstones and coordinator reads.



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