[
https://issues.apache.org/jira/browse/AMBARI-20122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jaimin Jetly reopened AMBARI-20122:
-----------------------------------
The commit has been reverted because it was blocking from deploying clusters
via ambari-web:
Selecting any partial set of service on "Select Services" page was causing
stack advisor recommendation call to fail with following error:
{code}
Traceback (most recent call last):
File "/var/lib/ambari-server/resources/scripts/stack_advisor.py", line 167,
in <module>
main(sys.argv)
File "/var/lib/ambari-server/resources/scripts/stack_advisor.py", line 108,
in main
result = stackAdvisor.recommendComponentLayout(services, hosts)
File "/var/lib/ambari-server/resources/scripts/../stacks/stack_advisor.py",
line 608, in recommendComponentLayout
layoutRecommendations = self.createComponentLayoutRecommendations(services,
hosts)
File
"/var/lib/ambari-server/resources/scripts/./../stacks/HDP/2.5/services/stack_advisor.py",
line 91, in createComponentLayoutRecommendations
services, hosts)
File "/var/lib/ambari-server/resources/scripts/../stacks/stack_advisor.py",
line 760, in createComponentLayoutRecommendations
sortedServices = self.getServicesSortedByDependencies(services)
File "/var/lib/ambari-server/resources/scripts/../stacks/stack_advisor.py",
line 886, in getServicesSortedByDependencies
self.sortServicesByDependencies(services, service, processedServices,
sortedServices)
File "/var/lib/ambari-server/resources/scripts/../stacks/stack_advisor.py",
line 911, in sortServicesByDependencies
self.sortServicesByDependencies(services, requiredService,
processedServices, sortedServices)
File "/var/lib/ambari-server/resources/scripts/../stacks/stack_advisor.py",
line 901, in sortServicesByDependencies
for component in service["components"]:
TypeError: 'NoneType' object is unsubscriptable
{code}
> Stack advisor needs to recommend dependency for slaves and masters
> ------------------------------------------------------------------
>
> Key: AMBARI-20122
> URL: https://issues.apache.org/jira/browse/AMBARI-20122
> Project: Ambari
> Issue Type: Task
> Components: ambari-server
> Affects Versions: 3.0.0
> Reporter: Jaimin Jetly
> Assignee: Tim Thorpe
> Fix For: 3.0.0
>
> Attachments: AMBARI-20122.patch
>
>
> After resolution of AMBARI-19685, stack advisor validates if stack defined
> dependency is not satisfied but recommendation API does not account for this.
> Stack defined dependencies are service/component based and has a scope
> CLUSTER|HOST.
> During recommendation the services to install have already been selected. We
> can't really utilize the cluster scope because either the dependent service
> was selected or it was not. If it was not selected it will be caught during
> validation. We can only recommend based on HOST scope.
> This JIRA is also limited to only handling those which don't have conditional
> dependencies.
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