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https://issues.apache.org/jira/browse/AMBARI-9056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aravindan Vijayan resolved AMBARI-9056.
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Resolution: Won't Fix
> GangliaReportPropertyProvider does not handle properly "NaN" values
> -------------------------------------------------------------------
>
> Key: AMBARI-9056
> URL: https://issues.apache.org/jira/browse/AMBARI-9056
> Project: Ambari
> Issue Type: Bug
> Components: ambari-metrics, ambari-server
> Affects Versions: 1.7.0
> Environment: Ambari 1.7 on Ubuntu 14.04
> Reporter: Benoit Perroud
> Priority: Minor
> Attachments: AMBARI-9056-reproduce.patch, AMBARI-9056-v1.patch,
> AMBARI-9056-v2.patch
>
>
> On a fresh install of HDP 2.2, I get this error:
> {code}
> 11:59:24,622 ERROR [qtp2010902743-25918] GangliaReportPropertyProvider:153 -
> Caught exception getting Ganglia metrics :
> org.codehaus.jackson.map.JsonMappingException: Can not construct instance of
> java.lang.Number from String value 'NaN': not a valid number
> at [Source:
> sun.net.www.protocol.http.HttpURLConnection$HttpInputStream@4f3df2c8; line:
> 1, column: 4496] (through reference chain:
> org.apache.ambari.server.controller.ganglia.GangliaMetric["datapoints"]) :
> spec=http://ganglia-server/ganglia/graph.php?g=cpu_report&json=1
> {code}
> When I'm having a look at the data returned by Ganglia, I get:
> {code}
> curl "http://ganglia-server/ganglia/graph.php?g=cpu_report&json=1";
> [{"ds_name":"a0","cluster_name":"","graph_type":"stack","host_name":"","metric_name":"1-min","color":"#BBBBBB","datapoints":[[0.12266666667,1420798065],[0.14,1420798080],...snip...[0.17,1420801650],["NaN",1420801665]]},...snip...]
> {code}
> Seems the last "NaN" datapoint is not parsed properly.
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