[jira] [Created] (AMBARI-9056) GangliaReportPropertyProvider does not handle properly "NaN" values

["Benoit Perroud (JIRA)" <ji...@apache.org>]

Benoit Perroud created AMBARI-9056:
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             Summary: 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


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://daplab-wn-06/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://daplab-wn-06/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]]},
{code}

Seems the last "NaN" datapoint is not parsed properly.



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