Exports hadoop metrics via HTTP for Prometheus consumption.
How to build
go get github.com/prometheus/client_golang/prometheus
go get github.com/prometheus/log
go build namenode_exporter.go
go build resourcemanager_exporter.go
Help on flags of namenode_exporter:
-namenode.jmx.url string
Hadoop JMX URL. (default "http://localhost:50070/jmx")
-web.listen-address string
Address on which to expose metrics and web interface. (default ":9070")
-web.telemetry-path string
Path under which to expose metrics. (default "/metrics")
Help on flags of resourcemanager_exporter:
-resourcemanager.url string
Hadoop ResourceManager URL. (default "http://localhost:8088")
-web.listen-address string
Address on which to expose metrics and web interface. (default ":9088")
-web.telemetry-path string
Path under which to expose metrics. (default "/metrics")
Tested on HDP2.3