So, I have what appears to be a full YARN_metrics.json file, but issuing your query:
curl --user chef:9JL67faynXrMdQvk http://localhost:8080/api/v1/clusters/data-torrent/services/YARN/components/NODEMANAGER?fields=metrics/yarn/ContainersFailed._sum%5b1456261150,1456264750,15%5d,metrics/yarn/ContainersCompleted._sum%5b1456261150,1456264750,15%5d,metrics/yarn/ContainersLaunched._sum%5b1456261150,1456264750,15%5d,metrics/yarn/ContainersIniting._sum%5b1456261150,1456264750,15%5d,metrics/yarn/ContainersKilled._sum%5b1456261150,1456264750,15%5d (I have to use %5b and %5d because curl interprets [...] as delimiting ranges) produces an output of: { "href" : "http://localhost:8080/api/v1/clusters/data-torrent/services/YARN/components/NODEMANAGER?fields=metrics/yarn/ContainersFailed._sum[1456261150,1456264750,15],metrics/yarn/ContainersCompleted._sum[1456261150,1456264750,15],metrics/yarn/ContainersLaunched._sum[1456261150,1456264750,15],metrics/yarn/ContainersIniting._sum[1456261150,1456264750,15],metrics/yarn/ContainersKilled._sum[1456261150,1456264750,15]";, "ServiceComponentInfo" : { "cluster_name" : "data-torrent", "component_name" : "NODEMANAGER", "service_name" : "YARN" } } Very much not helpful. So, I tried without the time ranges: curl --user chef:9JL67faynXrMdQvk http://localhost:8080/api/v1/clusters/data-torrent/services/YARN/components/NODEMANAGER?fields=metrics/yarn/ContainersFailed._sum,metrics/yarn/ContainersCompleted._sum,metrics/yarn/ContainersLaunched._sum,metrics/yarn/ContainersIniting._sum,metrics/yarn/ContainersKilled._sum That's better. { "href" : "http://localhost:8080/api/v1/clusters/data-torrent/services/YARN/components/NODEMANAGER?fields=metrics/yarn/ContainersFailed._sum,metrics/yarn/ContainersCompleted._sum,metrics/yarn/ContainersLaunched._sum,metrics/yarn/ContainersIniting._sum,metrics/yarn/ContainersKilled._sum";, "ServiceComponentInfo" : { "cluster_name" : "data-torrent", "component_name" : "NODEMANAGER", "service_name" : "YARN" }, "metrics" : { "yarn" : { "ContainersCompleted._sum" : 0.0, "ContainersFailed._sum" : 0.0, "ContainersIniting._sum" : 0.0, "ContainersKilled._sum" : 0.0, "ContainersLaunched._sum" : 0.0 } } } How can I get a full list of available metrics. Issuing the above GET without any field names should list all the fields available. At least that is what is implied by https://github.com/apache/ambari/blob/trunk/ambari-server/docs/api/v1/index.md#monitoring Thanks again for the pointers! j -- Joshua J. Kugler - Fairbanks, Alaska Azariah Enterprises - Programming and Website Design [email protected] - Jabber: [email protected] PGP Key: http://pgp.mit.edu/ ID 0x73B13B6A
