[jira] [Created] (AMBARI-5599) Switching between existing configs is not working in API

["Gordon Hamilton (JIRA)" <ji...@apache.org>]

Gordon Hamilton created AMBARI-5599:
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             Summary: Switching between existing configs is not working in API
                 Key: AMBARI-5599
                 URL: https://issues.apache.org/jira/browse/AMBARI-5599
             Project: Ambari
          Issue Type: Bug
    Affects Versions: 1.5.0, 1.5.1
            Reporter: Gordon Hamilton


In 1.4.x, I was able to switch between configurations using the following curl command:
{code}
curl -u <user>:<password> -X PUT -H "X-Requested-By: ml" http://<address>:8080/api/v1/cluster/AMCluster1 -d '{"Clusters":{"desired_config":{"type":"hdfs-site","tag":"version1"}}}'
{code}

However, in 1.5.x, this doesn't appear to work anymore even though documentation suggests it should. https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/configuration.md

I now see the following error:
{code}
{
  "status" : 500,
  "message" : "org.apache.ambari.server.controller.spi.SystemException: An internal system exception occurred: Configuration with tag 'version1' exists for 'hdfs-site'"
}
{code}

The work-around for this is to perform a GET on previous configuration that is required and create it as a new configuration, setting the desired_config at the same time.



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