Jordan Pilat created AMBARI-8739:
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Summary: Submitting an unchanged configuration via the API prompts
for a restart
Key: AMBARI-8739
URL: https://issues.apache.org/jira/browse/AMBARI-8739
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: 1.5.1
Environment: Hortonworks Sandbox v2.1
Reporter: Jordan Pilat
*Issue Description*
*Steps to Reproduce*
# Submit a given configuration to Ambari via the API, with a given tag and set
of properties*.
# Restart components as required.
# Submit the same configuration as in *Step 1*, only with a new tag.
# Observe the status of the component via the Ambari web application.
*Expected Result*
As the properties remain unchanged, none have been added, and none have been
removed, a restart of the component is not actually required.
The server should not update the tag, and should respond to the second API
request with a rejection message, noting that the configuration is unchanged.
A restart would not be required.
This would match the behavior seen in the web application, when one opens the
"Configs" tab and presses "Save" without actually changing everything,
including the tag.
Alternately, the actual configuration could simply be updated with the new tag
from *Step 3*. A restart would not be required.
*Actual Result*
The components for which you submitted the configurations must be restarted
again after receiving the same configuration a second time.
* - Using the option to both create and apply a configuration in one call, as
seen
[HERE|https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/configuration.md].
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