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