Impala Web UI (Debugging / Diagnostic)

Impala has a nice debugging feature. Each of it daemon processes( impalad/ catalogd, statestored) has a web server built in at different ports.

http(s)://impalad_host:25000
http(s)://catalogd_host:25020,
http(s)://statestored_host:25010

For impalad , there are various information available at following pages:

http(s)://impalad_host:25000/backends
http(s)://impalad_host:25000/catalog
http(s)://impalad_host:25000/logs
http(s)://impalad_host:25000/memz
http(s)://impalad_host:25000/metrics
http(s)://impalad_host:25000/queries
http(s)://impalad_host:25000/sessions
http(s)://impalad_host:25000/threadz
http(s)://impalad_host:25000/varz

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