You are viewing a plain text version of this content. The canonical link for it is here.

Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2013/06/19 19:26:20 UTC

[jira] [Updated] (CASSANDRA-4478) Make index_interval be measured in kb (instead of number of keys)

     [ https://issues.apache.org/jira/browse/CASSANDRA-4478?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-4478:
--------------------------------------

    Fix Version/s:     (was: 2.0 beta 1)
                   2.1
    
> Make index_interval be measured in kb (instead of number of keys)
> -----------------------------------------------------------------
>
>                 Key: CASSANDRA-4478
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4478
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Sylvain Lebresne
>            Priority: Minor
>             Fix For: 2.1
>
>         Attachments: 4478-incomplete.txt
>
>
> Currently, index_interval is measured in number of keys: how may keys before adding an entry to the index summary. After CASSANDRA-2319, each index entry also contains the columns index for the row, so index entry can be a bit bigger and of differing sizes. Measuring in number of keys is thus sub-optimal and difficult to tune, since you might want a different setting depending of whether your rows are big or small, but the setting is global.
> So we should move to measuring the interval in bytes.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira