[AMBARI-11323] Enable NameNode HA Wizard: Call to install JOURNALNODE failed

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.1.0
• Component/s: ambari-web
• Assignee: Antonenko Alexander
• Reporter: Antonenko Alexander
• Created: 21/May/15 21:55
• Updated: 22/May/15 10:13
• Resolved: 22/May/15 08:47

Description

Steps to reproduce:
1. Launch NameNode HA Wizard
2. Proceed to Configure Components step
POST request to /api/v1/clusters/c1/services?ServiceInfo/service_name=HDFS
with data {"components":[{"ServiceComponentInfo":{"component_name":"JOURNALNODE"}}]}
failed with error:

{
  "status" : 409,
  "message" : "org.apache.ambari.server.controller.spi.ResourceAlreadyExistsException: Attempted to create a component which already exists: [clusterName=c1, serviceName=HDFS, componentName=JOURNALNODE]"
}

UI doesn't show any error.
JS error log:

POST http://c6401.ambari.apache.org:8080/api/v1/clusters/c1/services?ServiceInfo/service_name=HDFS 409 (Conflict)
vendor.js:108 f.support.ajax.f.ajaxTransport.sendvendor.js:108
f.extend.ajaxapp.js:132424
Em.Object.extend.sendapp.js:4734
App.HighAvailabilityWizardStep5Controller.App.HighAvailabilityProgressPageController.extend.installJournalNodesapp.js:62469 App.wizardProgressPageControllerMixin.Em.Mixin.create.runTaskapp.js:62439
App.wizardProgressPageControllerMixin.Em.Mixin.create.statusChangeCallbackapp.js:64699
(anonymous function)vendor.js:106
f.Callbacks.ovendor.js:106
f.Callbacks.p.fireWithvendor.js:108
vendor.js:108
f.support.ajax.f.ajaxTransport.send.d