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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3695) [HOD] Have an ability to run multiple slaves per node
Date Fri, 04 Jul 2008 14:05:31 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli updated HADOOP-3695:
--------------------------------------------

    Attachment: patch_multiple_workers_1.txt

Attaching patch for HOD to run multiple workers per hodring. The config parameter ringmaster.workers_per_ring
specifies the number of workers (DNs and TTs) that each hodring should run. It defaults to
1.

Tested the patch on a 4 node cluster, with ringmaster.workers_per_ring set to 4 (total 2 masters,
8 workers per hadoop service) and it works fine.

> [HOD] Have an ability to run multiple slaves per node
> -----------------------------------------------------
>
>                 Key: HADOOP-3695
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3695
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: contrib/hod
>            Reporter: Hemanth Yamijala
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 0.19.0
>
>         Attachments: patch_multiple_workers_1.txt
>
>
> Currently HOD launches at most one slave per node. For purposes of testing a large number
of slaves on much fewer resources - for e.g. testing scalability of clusters, it will be useful
if it can provision multiple slaves per node.

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