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Posted to dev@bigtop.apache.org by "jay vyas (JIRA)" <ji...@apache.org> on 2014/01/08 23:00:50 UTC

[jira] [Updated] (BIGTOP-1177) Puppet Recipes: Can we modularize them to foster HCFS initiatives?

     [ https://issues.apache.org/jira/browse/BIGTOP-1177?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

jay vyas updated BIGTOP-1177:
-----------------------------

    Summary: Puppet Recipes: Can we modularize them to foster HCFS initiatives?  (was: Puppet Recipes: Can we modularize them?)

> Puppet Recipes: Can we modularize them to foster HCFS initiatives?
> ------------------------------------------------------------------
>
>                 Key: BIGTOP-1177
>                 URL: https://issues.apache.org/jira/browse/BIGTOP-1177
>             Project: Bigtop
>          Issue Type: Improvement
>            Reporter: jay vyas
>
> In the spirit of interoperability Can we work to modularizing the bigtop puppet recipes to not define "hadoop_cluster_node" as an HDFS specific class.  
> I'm not a puppet expert but just 
> Here are two reasons why:
> - For  HDFS USers: In some use cases we might want to use bigtop to provision many nodes, only some of which are "data nodes".    For example: Lets say our cluster is crawling the web in mappers, and doing some machine learning and distillling large pages into  a small relational database tuple, i.e. that summarizes the "entities" in the page.  In this case we don't necessarily benefit much from locality because we might be CPU rather than network/io bound.   So we might want to provision a cluster of 50 machines : 40 multicore CPU heavy ones and just 10 datanodes to support the DFS.   I know this is an extreme case but its a good example.  
> - For NON-HDFS users: One important aspect of emerging hadoop workflows is HCFS : https://wiki.apache.org/hadoop/HCFS/ -- the idea that filesystems like S3, OrangeFS, GlusterFileSystem, etc.. are all just as capable , although not necessarily optimal, of supporting YARN and Hadoop operations as HDFS.   



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