Jonathan Ellis created CASSANDRA-5746:
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             Summary: HHOM.countPendingHints is a trap for the unwary
                 Key: CASSANDRA-5746
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5746
             Project: Cassandra
          Issue Type: Bug
          Components: Core, Tools
            Reporter: Jonathan Ellis
            Assignee: Tyler Hobbs
             Fix For: 2.0.1


countPendingHints can OOM the server fairly easily since it does a per-target 
seq scan without paging.

More generally, countPendingHints is far too slow to be useful for routine 
monitoring.

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