[AMBARI-21606] Ambari Metrics is not responding after upgrade

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 2.5.2
• Fix Version/s: 2.5.2
• Epic Link: Cross Stack Name Upgrades
• Assignee: Siddharth Wagle
• Reporter: Eric Yang
• Created: 28/Jul/17 20:46
• Updated: 05/Aug/17 02:50
• Resolved: 05/Aug/17 02:50

Description

In ambari-metrics-monitor log file, it shows:

2017-07-28 20:05:46,577 [WARNING] emitter.py:74 - Error sending metrics to server. 'NoneType' object has no attribute 'strip'
2017-07-28 20:05:46,578 [WARNING] emitter.py:80 - Retrying after 5 ...

Widgets in all services are showing out of date data. There doesn't seem to be new data getting into collector. Collector log files showing no error.