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https://issues.apache.org/jira/browse/AMBARI-8815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14275191#comment-14275191
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Hari Sekhon commented on AMBARI-8815:
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@John yes of course the path prefix should be configurable to something other
than /opt at install time as well if you really want to change it (in which
case I recommend symlinking /opt/stack to the location you actually install it
so all the commands from documentation and the internet still work with copy
and paste without having to modify the paths every single time).
> Add Parcel support similar to Cloudera Manager
> ----------------------------------------------
>
> Key: AMBARI-8815
> URL: https://issues.apache.org/jira/browse/AMBARI-8815
> Project: Ambari
> Issue Type: Improvement
> Components: stacks
> Affects Versions: 1.7.0
> Environment: HDP 2.2
> Reporter: Hari Sekhon
>
> Instead of installing lots of RPMs consider adding Parcel support as is done
> in Cloudera Manager.
> I wasn't sure about it when we first started using it in Cloudera but it's
> actually much simpler and cleaner.
> A Parcel is basically just a tarball that you unpack to
> /opt/<stack>/<version> and then link /opt/<stack>/current to the currently
> active version so you can easily keep lots of them adjacently.
> It also simplifies deploying a stack since there is no variation of what is
> installed and what is missing, it's always the same directory tree and
> linking is very simple (much simpler than the latest HDP 2.2 attempt where
> /usr/hdp/current doesn't actually map straight to the version dir meaning you
> can't just use /usr/hdp/current/... as the prefix for all commands like you
> should be able to - as I used to do on Cloudera).
> Having a static prefix that is relinked like /opt/<stack>/current would make
> commands portable across different versions of the stack, a major win
> compared to the current HDP 2.2 implementation where you need to explicitly
> specify a prefix containing the exact version eg. /usr/hdp/2.2.0.0-2041/ -
> which is not portable at all (this might actually just be because the
> symlinks under current/ are named differently to what they link to though).
> Regards,
> Hari Sekhon
> (ex-Cloudera)
> http://www.linkedin.com/in/harisekhon
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