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Posted to commits@cassandra.apache.org by "Brandon Williams (JIRA)" <ji...@apache.org> on 2013/01/09 15:58:12 UTC

[jira] [Created] (CASSANDRA-5135) calculatePendingRanges could be asynchronous

Brandon Williams created CASSANDRA-5135:
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             Summary: calculatePendingRanges could be asynchronous
                 Key: CASSANDRA-5135
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5135
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
    Affects Versions: 1.1.0
            Reporter: Brandon Williams
            Assignee: Brandon Williams
             Fix For: 1.1.9


In the vein of CASSANDRA-3881, cPR is expensive and can end up dominating the gossip thread, causing all sorts of havoc.  One simple way we triage this is to simply give it it's own executor with a queue size of 1 (since we don't actually need to recalculate for every host we see if we suddenly see many of them) and do the calculation asynchronously, freeing up the gossiper.

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