hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "John Zhuge (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10370) Allow DataNode to be started with numactl
Date Tue, 24 May 2016 18:03:12 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15298631#comment-15298631
] 

John Zhuge commented on HDFS-10370:
-----------------------------------

Thanks for the clarifications. I understand the current focus is on "interleave memory allocations",
do you have any performance test results?

> Allow DataNode to be started with numactl
> -----------------------------------------
>
>                 Key: HDFS-10370
>                 URL: https://issues.apache.org/jira/browse/HDFS-10370
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Dave Marion
>            Assignee: Dave Marion
>         Attachments: HDFS-10370-1.patch, HDFS-10370-2.patch, HDFS-10370-3.patch
>
>
> Allow numactl constraints to be applied to the datanode process. The implementation I
have in mind involves two environment variables (enable and parameters) in the datanode startup
process. Basically, if enabled and numactl exists on the system, then start the java process
using it. Provide a default set of parameters, and allow the user to override the default.
Wiring this up for the non-jsvc use case seems straightforward. Not sure how this can be supported
using jsvc.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org


Mime
View raw message