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Posted to commits@cassandra.apache.org by "Joshua McKenzie (JIRA)" <ji...@apache.org> on 2015/02/26 02:22:05 UTC

[jira] [Updated] (CASSANDRA-8709) Convert SequentialWriter from using RandomAccessFile to nio channel

     [ https://issues.apache.org/jira/browse/CASSANDRA-8709?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joshua McKenzie updated CASSANDRA-8709:
---------------------------------------
    Reviewer: T Jake Luciani

> Convert SequentialWriter from using RandomAccessFile to nio channel
> -------------------------------------------------------------------
>
>                 Key: CASSANDRA-8709
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8709
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Joshua McKenzie
>            Assignee: Joshua McKenzie
>              Labels: Windows
>             Fix For: 3.0
>
>
> For non-mmap'ed I/O on Windows, using nio channels will give us substantially more flexibility w/regards to renaming and moving files around while writing them.  This change in conjunction with CASSANDRA-4050 should allow us to remove the Windows bypass code in SSTableRewriter for non-memory-mapped I/O.
> In general, migrating from instances of RandomAccessFile to nio channels will help make Windows and linux behavior more consistent.



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