fix(monitoring): add missing ClickHouse Prometheus port and fix dashboard queries

ddmitry/clickstream-ch-kafka-superset-demo

- Add port 9126 mapping for ClickHouse Prometheus metrics endpoint
  (was configured in prometheus_ch.xml but not exposed in docker-compose.yml)

- Fix CPU Usage panel: use delta() instead of rate() for gauge metric
  ClickHouseProfileEvents_OSCPUVirtualTimeMicroseconds is a gauge, not counter

- Add explicit datasource blocks to dashboard queries for consistency

ClickHouse ProfileEvents metrics correctly use rate() — they are counters.
Warning about missing _total suffix is expected (ClickHouse naming convention).

This commit is contained in:

ddadmin

2026-02-08 23:00:32 +03:00

parent a310bc6c39

commit 39df4f2469

2 changed files with 13 additions and 0 deletions

									
										docker-compose.yml
									
		+1
		
												View File
												
				@@ -35,6 +35,7 @@ services:

				    ports:

				      - "8002:9000"

				      - "9123:8123"

				      - "9126:9126"  # ClickHouse Prometheus metrics endpoint

				  kafka:

				    image: apache/kafka:3.8.0