hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Todd Lipcon (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3228) Use fadvise in local read path
Date Fri, 06 Apr 2012 23:52:17 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HDFS-3228:
------------------------------

         Component/s: performance
                      hdfs client
    Target Version/s: 3.0.0
       Fix Version/s:     (was: 3.0.0)
    
> Use fadvise in local read path
> ------------------------------
>
>                 Key: HDFS-3228
>                 URL: https://issues.apache.org/jira/browse/HDFS-3228
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client, performance
>            Reporter: Henry Robinson
>            Assignee: Henry Robinson
>
> The read path through BlockReaderLocal does not take advantage of readahead or drop-behind
in the way that BlockSender does. We could arguably stand to gain even more from hinting about
read patterns to the kernel here, so we should add the same mechanisms to BlockReaderLocal.


--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message