FAQ
Add mapred.tasktracker.tasks.maximum to limit the total number of map and reduce tasks
--------------------------------------------------------------------------------------

Key: HADOOP-6749
URL: https://issues.apache.org/jira/browse/HADOOP-6749
Project: Hadoop Common
Issue Type: New Feature
Components: conf
Affects Versions: 0.20.2
Reporter: Ted Yu


We have mapred.tasktracker.map.tasks.maximum and mapred.tasktracker.reduce.tasks.maximum now.

It is desirable to have mapred.tasktracker.tasks.maximum which limits the total number of map and reduce tasks. Meaning its value may be lower than (mapred.tasktracker.map.tasks.maximum + mapred.tasktracker.reduce.tasks.maximum)
This would be useful in a cluster whose nodes are multi-core.

--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Search Discussions

  • Vinod K V (JIRA) at May 6, 2010 at 4:26 am
    [ https://issues.apache.org/jira/browse/HADOOP-6749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Vinod K V resolved HADOOP-6749.
    -------------------------------

    Resolution: Duplicate

    Hong is right, I am closing this as duplicate of MAPREDUCE-1379. Please read the discussions there and reopen this one if you don't agree.
    Add mapred.tasktracker.tasks.maximum to limit the total number of map and reduce tasks
    --------------------------------------------------------------------------------------

    Key: HADOOP-6749
    URL: https://issues.apache.org/jira/browse/HADOOP-6749
    Project: Hadoop Common
    Issue Type: New Feature
    Components: conf
    Affects Versions: 0.20.2
    Reporter: Ted Yu

    We have mapred.tasktracker.map.tasks.maximum and mapred.tasktracker.reduce.tasks.maximum now.
    It is desirable to have mapred.tasktracker.tasks.maximum which limits the total number of map and reduce tasks. Meaning its value may be lower than (mapred.tasktracker.map.tasks.maximum + mapred.tasktracker.reduce.tasks.maximum)
    This would be useful in a cluster whose nodes are multi-core.
    --
    This message is automatically generated by JIRA.
    -
    You can reply to this email to add a comment to the issue online.

Related Discussions

Discussion Navigation
viewthread | post
Discussion Overview
groupcommon-dev @
categorieshadoop
postedMay 5, '10 at 5:50a
activeMay 6, '10 at 4:26a
posts2
users1
websitehadoop.apache.org...
irc#hadoop

1 user in discussion

Vinod K V (JIRA): 2 posts

People

Translate

site design / logo © 2022 Grokbase