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Posted to commits@cassandra.apache.org by "Vijay (JIRA)" <ji...@apache.org> on 2013/05/22 19:29:21 UTC

[jira] [Resolved] (CASSANDRA-4388) Use MMap for CompressedSegmentFile with Native Checksum

     [ https://issues.apache.org/jira/browse/CASSANDRA-4388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vijay resolved CASSANDRA-4388.
------------------------------

    Resolution: Won't Fix

Hi Jonathan, The main idea was to reduce the system calls which is better served currently with the pool... hence closing the ticket.
                
> Use MMap for CompressedSegmentFile with Native Checksum
> -------------------------------------------------------
>
>                 Key: CASSANDRA-4388
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4388
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Vijay
>            Assignee: Vijay
>             Fix For: 2.0
>
>         Attachments: 0001-CASSANDRA-4388.patch
>
>
> Use MMap for CompressedSegmentFile (Something similar to CASSANDRA-3623) and use Native Checksum (HDFS-2080) to avoid memcpy and be faster in its calculations.

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