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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-2705) io.file.buffer.size should default to a value larger than 4k
Date Fri, 16 May 2008 01:10:55 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-2705?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Douglas resolved HADOOP-2705.
-----------------------------------

    Resolution: Won't Fix

As a default, the 4k buffer size will suffice.

> io.file.buffer.size should default to a value larger than 4k
> ------------------------------------------------------------
>
>                 Key: HADOOP-2705
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2705
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: conf
>            Reporter: Chris Douglas
>            Assignee: Chris Douglas
>            Priority: Minor
>         Attachments: 2705-0.patch
>
>
> Tests using HADOOP-2406 suggest that increasing this to 32k from 4k improves read times
for block, lzo compressed SequenceFiles by over 40%; 32k is a relatively conservative bump.

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