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From "Jackson Chung (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-2917) expose calculate midrange for token in jmx
Date Mon, 18 Jul 2011 23:24:57 GMT
expose calculate midrange for token in jmx
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                 Key: CASSANDRA-2917
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2917
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Jackson Chung
            Priority: Minor


currently there is no easy way to get midrange, especially for OPP. For simplicity, you could
call OrderPreservingPartitioner.midpoint(Token, Token), that gives you a rough estimate (and
you'd still need to remove non-utf8 characters.)

A more accurate but difficult way is to sample the keys in that range and pick the midpoint
of those. We should expose that via jmx, because without this, supporting OPP w/o this is
quite challenging.

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