You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-issues@hadoop.apache.org by "Todd Lipcon (Commented) (JIRA)" <ji...@apache.org> on 2011/10/25 08:10:32 UTC
[jira] [Commented] (MAPREDUCE-3255) MR2 needs a counter analogous
to "slot seconds"
[ https://issues.apache.org/jira/browse/MAPREDUCE-3255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13134773#comment-13134773 ]
Todd Lipcon commented on MAPREDUCE-3255:
----------------------------------------
Ah, it looks like the SLOT_MILLIS_* counters still exist in MR2, they just don't show up in the "Counters" tab on the web UI. They do show up when the job finishes.
> MR2 needs a counter analogous to "slot seconds"
> -----------------------------------------------
>
> Key: MAPREDUCE-3255
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3255
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
>
> In older versions of MR, we have a SLOT_MILLIS counter which counts how many seconds each task (and job) used of map/reduce slots. Since we no longer have the concept of a "slot" in MR2, we should change this counter to be something like "RAM-megabyte-seconds" - ie each task is charged for its resource requirement * the number of seconds it occupied those resources.
> Ideally these would be collected by the NodeManager rather than the children, so that they could be used for billing purposes, but a first cut of the counters through the MR framework itself would probably still be useful in more trusting environments.
--
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