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From "Stu Hood (JIRA)" <>
Subject [jira] Updated: (CASSANDRA-847) Make the reading half of compactions memory-efficient
Date Thu, 04 Mar 2010 06:46:27 GMT


Stu Hood updated CASSANDRA-847:

    Attachment: 0003-Rename-RowIndexedReader-specific-test.patch

> Make the reading half of compactions memory-efficient
> -----------------------------------------------------
>                 Key: CASSANDRA-847
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Stu Hood
>            Priority: Critical
>             Fix For: 0.7
>         Attachments: 0001-Add-structures-that-were-important-to-the-SSTableSca.patch,
0001-Add-structures-that-were-important-to-the-SSTableSca.patch, 0002-Implement-most-of-the-new-SSTableScanner-interface.patch,
0002-Implement-most-of-the-new-SSTableScanner-interface.patch, 0003-Rename-RowIndexedReader-specific-test.patch,
0003-Rename-RowIndexedReader-specific-test.patch, 0004-Improve-Scanner-tests-and-separate-SuperCF-handling-.patch,
0005-Add-Scanner-interface-and-a-Filtered-implementation-.patch, 0006-Add-support-for-compaction-of-super-CFs-and-some-tes.patch
> This issue is the next on the road to finally fixing CASSANDRA-16. To make compactions
memory efficient, we have to be able to perform the compaction process on the smallest possible
chunks that might intersect and contend one-another, meaning that we need a better abstraction
for reading from SSTables.

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