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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1614) Only create IColumnIterators for matching sstables
Date Fri, 15 Oct 2010 21:26:34 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12921559#action_12921559
] 

Jonathan Ellis commented on CASSANDRA-1614:
-------------------------------------------

What is the performance story now?

> Only create IColumnIterators for matching sstables
> --------------------------------------------------
>
>                 Key: CASSANDRA-1614
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1614
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 0.7.0
>
>         Attachments: 0001-Only-create-IColumnIterators-for-matching-sstables-a.patch
>
>
> We currently perform bloom filter and index checks in the constructor for SSTable*Iterators,
which means that the object gets created even if we miss. Using a factory function for this
step would save object creation time.

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