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https://issues.apache.org/jira/browse/CASSANDRA-2917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sam Tunnicliffe updated CASSANDRA-2917:
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Attachment: trunk-2917-1.txt
> expose calculate midrange for token in jmx
> ------------------------------------------
>
> Key: CASSANDRA-2917
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2917
> Project: Cassandra
> Issue Type: Improvement
> Components: Tools
> Reporter: Jackson Chung
> Assignee: Sam Tunnicliffe
> Priority: Minor
> Labels: lhf
> Fix For: 1.1
>
> Attachments: trunk-2917-1.txt, trunk-2917.txt
>
>
> 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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