Joseph Gresock created NIFI-3411:
------------------------------------
Summary: Latest "NiFi" Status History data point should only be
reported when complete
Key: NIFI-3411
URL: https://issues.apache.org/jira/browse/NIFI-3411
Project: Apache NiFi
Issue Type: Improvement
Components: Core UI
Affects Versions: 1.1.1
Reporter: Joseph Gresock
Priority: Minor
Fix For: 1.2.0
In the Status History view on a NiFi cluster, the cluster's metrics (called
"NiFi") are reported as a sum of the individual nodes' metrics, and appear as a
blue line in the graph.
When the view is first displayed (or at any refresh), if any of the nodes have
not reported back their metrics, the most recent data point is often
misrepresented on the NiFi cluster line as the sum of only the nodes that have
reported their metrics. Since this is a line graph, the difference looks
jarring, and can lead to the immediate interpretation that data has stopped
flowing with such a large drop in the graph. In addition, the summary metrics
(avg/min/max) incorporate this incomplete cluster metric. In order to get an
accurate average data rate, the user has to continue to refresh the graph until
all nodes have reported in the latest data point.
I understand that this isn't a trivial fix (i.e., what do you do if one of the
nodes genuinely is disconnected?), but it feels like this user experience could
be improved.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
