[AMBARI-21600] Grafana Kafka-Topic dashboard is forming incorrect url 'NaNundefined' appended

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: trunk, 2.5.1
• Component/s: ambari-metrics

Environment

all

• Assignee: Aravindan Vijayan
• Reporter: Jay SenSharma
• Created: 28/Jul/17 14:27
• Updated: 03/Aug/17 14:20
• Resolved: 03/Aug/17 14:20

Description

• In Ambari 2.5.1 when we open the Grafana Dashboard then all other kafka graphs are working except "Kafka Topic". It shows "No Datapoint".

• While debugging using 'Developer Console' we noticed that it is appending 'NaNundefined' before the "._avg&appId"

Example:

http://amb25101:3000/api/datasources/proxy/1/ws/v1/timeline/metrics?metricNames=kafka.server.BrokerTopicMetrics.BytesInPerSec.topic.TestTopic.countNaNundefined._avg&appId=kafka_broker&startTime=1501211592&endTime=1501233192

Where as ideally it should be as following:

http://amb25101:3000/api/datasources/proxy/1/ws/v1/timeline/metrics?metricNames=kafka.server.BrokerTopicMetrics.BytesInPerSec.topic.TestTopic.count._avg&appId=kafka_broker&startTime=1501211592&endTime=1501233192

Issue Links

• duplicates: AMBARI-21640 Certain templated Grafana dashboards not showing data.
• links to: Review Board Link