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Posted to commits@cassandra.apache.org by "Stefan Podkowinski (JIRA)" <ji...@apache.org> on 2016/11/02 13:25:58 UTC

[jira] [Updated] (CASSANDRA-12870) Calculate pending ranges for identical KS settings just once

     [ https://issues.apache.org/jira/browse/CASSANDRA-12870?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Podkowinski updated CASSANDRA-12870:
-------------------------------------------
    Issue Type: Improvement  (was: Bug)

> Calculate pending ranges for identical KS settings just once
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-12870
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12870
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Stefan Podkowinski
>            Assignee: Stefan Podkowinski
>             Fix For: 4.0
>
>
> The {{TokenMetadata.calculatePendingRanges()}} operation can be very expensive and already has been subject to micro optimization in CASSANDRA-9258. Instead of further optimizing the calculation itself, I'd like to prevent it from being executed as often by only calling it just once for all keyspaces sharing identical replication settings. 



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