Doroszlai, Attila created AMBARI-22779:
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Summary: Cannot scale cluster if Ambari Server restarted since
blueprint cluster creation
Key: AMBARI-22779
URL: https://issues.apache.org/jira/browse/AMBARI-22779
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: 2.6.0
Reporter: Doroszlai, Attila
Assignee: Doroszlai, Attila
Fix For: 2.6.2
STR:
# Create cluster using blueprint
# Restart Ambari Server
# Install Ambari Agent on new host and register with server
# Add the new host via API request
# Start Ambari Agent on the new host
Result: Ambari Server accepts the scale request, but does not proceed to
install/start components on the new host
The problem is that AMBARI-22012 fixed a timing/ordering issue by introducing
an executor, which is started on "cluster configured" event during blueprint
cluster creation. If Ambari Server is restarted afterwards, the executor will
stay stopped, hence tasks for scale requests are never executed.
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