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https://issues.apache.org/jira/browse/AMBARI-20560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christopher Jackson updated AMBARI-20560:
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Summary: Need mechanism to require one or more of a set of services as
required in metainfo.xml file. (was: Need mechanism to add one of a set of
services as required in metainfo.xml file. )
> Need mechanism to require one or more of a set of services as required in
> metainfo.xml file.
> ---------------------------------------------------------------------------------------------
>
> Key: AMBARI-20560
> URL: https://issues.apache.org/jira/browse/AMBARI-20560
> Project: Ambari
> Issue Type: Story
> Reporter: Christopher Jackson
>
> It appears that HDP 2.6 will support both Spark1 and Spark2. It will allow
> these services to be installed side by side and an environment variable will
> determine which is used when a process that needs spark is run.
> Services have a metainfo.xml file which they can list other services which
> are required for their service to function properly. If a service required
> Spark (any version) how would they define this in the metainfo.xml file? For
> instance I wouldn’t want the following as it would imply that both Spark 1.x
> and Spark 2.x had to be installed:
> {code}
> <requiredServices>
> <service>SPARK</service>
> <service>SPARK2</service>
> </requiredServices>
> {code}
> I also wouldn’t want to list only one or the other because this service
> supports both versions.
> There should be some sort of mechanism to say 1 or more of these services
> from a given set is required.
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