[AMBARI-13300] Enhance Stack Advisor to support Blueprint recommendation

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: ambari-server, blueprints
• Assignee: Unassigned
• Reporter: Vijay Srinivasaraghavan
• Created: 02/Oct/15 20:06
• Updated: 02/Oct/15 20:09

Description

StackAdvisor component as of now can recommend and validate component layout and configurations. Precisely, we can
request StackAdvisor API for any of these recommendations (host_groups, configurations, configuration-dependencies).

StackAdvisor has got the host specific resouce details (memory, cpu, disks, os type, etc.,) but it does not use these details while recommending the host-component mapping though configuration recommendation is making use of it.

Applications/Service Providers that are using Amabri Rest API/Blueprints to provision and manage Hadoop clusters will largely benefit if Stack Advisor component is enhanced to address following GAPs

• Support for Heterogenous hosts (Master, Slaves, Clients)

• Provide both host group and configuration recommendations in same blueprint output response instead of requesting one at
  a time (as of now we can request one of the following - host_groups, configurations, configuration-dependencies not a combination/al of them)

• Provide HA blueprint recommendation in stack advisor (creating handcrafted blueprint without using StackAdvisor limits
  the potential of StackAdvisor component)

• Recommend appropriate hosts to services based on the host resource availability and service resource requirements

Issue Links

• relates to: AMBARI-13134 Stack advisor's recommendation should support both homogeneous and heterogenous nodes