[AMBARI-5599] Switching between existing configs is not working in API

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.0, 1.5.1
• Fix Version/s: 1.6.0
• Assignee: Nate Cole
• Reporter: Gordon Hamilton
• Created: 28/Apr/14 18:08
• Updated: 23/May/14 22:46
• Resolved: 30/Apr/14 16:20

Description

In 1.4.x, I was able to switch between configurations using the following curl command:

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"}}}'

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:

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

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.

Issue Links

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