[STORM-3392] Topology page should show components even if workers haven't started - ASF JIRA

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Details

Type: Improvement
Status: Resolved
Priority: Minor
Resolution: Fixed
Affects Version/s: 2.0.1
Fix Version/s: 2.1.0
Component/s: storm-client
Labels:
- pull-request-available

Description

After starting a topology, the user can view the topology UI, but the components are not shown until aggregate stats are available which causes a delay. The components are known even before the stats are populated. Improvement is to populate placeholder components aggregate stats until actual aggregate stats become available, which immediately shows the components.