[AMBARI-4455] Failure saving configuration in a new Host Config Group

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.4.3
• Fix Version/s: 1.4.4
• Component/s: ambari-web
• Assignee: Andrii Tkach
• Reporter: Andrii Tkach
• Created: 29/Jan/14 13:36
• Updated: 29/Jan/14 13:46
• Resolved: 29/Jan/14 13:46

Description

1) Clean install, new cluster, HDP 1.3.3 stack
2) using Ambari 1.4.3
3) Two nodes (one with NN, other with SNN) – both with DN, TT
4) create new HDFS group, put a host in the group, click save
5) You return to Ambari with that new group set as the group.
6) Filter to find a prop
7) Override one property
8) Click save, failure message

Saw PUT error. Attaching screen shots.

The issue is reproducible based on Step 5. Seems if you create a new group and save, when that group is set in the UI and you try to save, it PUTs the config_group w/o the id, causing the PUT failure. /api/v1/clusters/MyCluster/config_groups/ is being called and not /api/v1/clusters/MyCluster/config_groups/{id} (id is not set)

I have seen that PUT failure surface as "failure to save" message as well as "silent failure" where the message says successfully saved but the PUT failed under-the-hood.