Tom Beerbower created AMBARI-1037:
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Summary: Implement an efficient way to provide Ganglia data for
heatmap and other cluster visualization tools
Key: AMBARI-1037
URL: https://issues.apache.org/jira/browse/AMBARI-1037
Project: Ambari
Issue Type: Sub-task
Reporter: Tom Beerbower
Assignee: Tom Beerbower
Rendering a cluster heatmap requires retrieving a metric (or a set of metrics)
across all hosts in the cluster (current or any point-in-time in the past for
which the data points are available).
Currently Ganglia metrics a retrieved with one request per resource. This
mechanism is not suited for cluster heatmap rendering purposes as it would
require N calls to Ganglia Web where N is the number of hosts in the cluster.
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