rnewson commented on a change in pull request #3416:
URL: https://github.com/apache/couchdb/pull/3416#discussion_r608075547
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File path: src/chttpd/src/chttpd_node.erl
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@@ -117,6 +117,12 @@ handle_node_req(#httpd{method='GET', path_parts=[_, Node,
<<"_stats">> | Path]}=
chttpd:send_json(Req, EJSON1);
handle_node_req(#httpd{path_parts=[_, _Node, <<"_stats">>]}=Req) ->
send_method_not_allowed(Req, "GET");
+handle_node_req(#httpd{method='GET', path_parts=[_, Node,
<<"_prometheus">>]}=Req) ->
+ Metrics = call_node(Node, couch_prometheus_server, scrape, []),
+ Header = [{<<"Content-Type">>, <<"text/plain">>}],
Review comment:
I'm referring to
https://prometheus.io/docs/instrumenting/exposition_formats/
`HTTP Content-Type | text/plain; version=0.0.4 (A missing version value will
lead to a fall-back to the most recent text format version.)`
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