'filter' in consul_sd_config; how to use?

[M Moore]

The Prometheus configuration documentation warns that the "node_meta" parameter for consul_sd_config is going away, so I switched to using the "filter" parameter, but it doesn't seem to work at all.

From command line:
curl -s 'http://gis-consul-csg:8500/v1/catalog/nodes' -> returns 559 nodes
curl -s 'http://gis-consul-csg:8500/v1/catalog/nodes?filter=Meta.silo=="mdb"' -> returns 36 nodes

Now in Prometheus when I use:

  consul_sd_configs:
  - server: gis-consul-csg:8500
    filter: 'Meta.silo=="mdb"'

I get 559 targets, as if the "filter" is empty.  What am I doing wrong?

[Brian Candler]

I don't know why my reply was deleted. It said to use tcpdump to see what actual HTTP request is being made to consul. Looking at the source, I suspect Prometheus is querying for "services" not "nodes".