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Posted to commits@cassandra.apache.org by "Jun Rao (JIRA)" <ji...@apache.org> on 2009/07/30 01:51:14 UTC

[jira] Commented: (CASSANDRA-325) Column bloomfilter not exploited

    [ https://issues.apache.org/jira/browse/CASSANDRA-325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12736921#action_12736921 ] 

Jun Rao commented on CASSANDRA-325:
-----------------------------------

Using bloomfilter is not always a win, especially when the columns are already cached in the file buffer, Maybe we should add a per CF option that enable/disable checking the column bloomfilter.

> Column bloomfilter not exploited
> --------------------------------
>
>                 Key: CASSANDRA-325
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-325
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jun Rao
>
> There is a bloomfilter created for all columns per row in SSTables. The bloomfilter is deserialized during read, but is not checked.

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