raft_metrics -> ra_metrics; correct prefix

Author: mkuratczyk

deps/rabbitmq_prometheus/src/collectors/prometheus_rabbitmq_raft_metrics_collector.erl

@@ -16,7 +16,7 @@
                                    counter_metric/2]).
 
 -define(METRIC_NAME_PREFIX, <<"rabbitmq_raft_">>).
--define(DETAILED_METRIC_NAME_PREFIX, <<"rabbitmq_raft_detailed_">>).
+-define(DETAILED_METRIC_NAME_PREFIX, <<"rabbitmq_detailed_raft_">>).
 
 %%====================================================================
 %% Collector API
@@ -35,7 +35,7 @@ collect_mf('detailed', Callback) ->
         undefined ->
             ok;
         MFNames ->
-            case lists:member(raft_metrics, MFNames) of
+            case lists:member(ra_metrics, MFNames) of
                 true ->
                     collect_detailed_metrics(?DETAILED_METRIC_NAME_PREFIX, Callback);
                 false ->

deps/rabbitmq_prometheus/test/rabbit_prometheus_http_SUITE.erl

@@ -861,14 +861,14 @@ raft_detailed_metrics_test(Config) ->
                          #{module => "ra_log_wal", ra_system => "quorum_queues"} => ["1.0"]},
     QQMetrics = #{#{queue => "a_quorum_queue", vhost => "/"} => ["1.0"]},
 
-    {_, Body1} = http_get_with_pal(Config, "/metrics/detailed?family=raft_metrics&vhost=foo", [], 200),
+    {_, Body1} = http_get_with_pal(Config, "/metrics/detailed?family=ra_metrics&vhost=foo", [], 200),
     %% no queues in vhost foo, so no QQ metrics
     ?assertEqual(ComponentMetrics,
                  map_get(rabbitmq_raft_detailed_wal_files, parse_response(Body1))),
     ?assertEqual(undefined,
                  maps:get(rabbitmq_raft_detailed_term, parse_response(Body1), undefined)),
 
-    {_, Body2} = http_get_with_pal(Config, "/metrics/detailed?family=raft_metrics&vhost=/", [], 200),
+    {_, Body2} = http_get_with_pal(Config, "/metrics/detailed?family=ra_metrics&vhost=/", [], 200),
     %% there's a queue in vhost /
     ?assertEqual(ComponentMetrics,
                  map_get(rabbitmq_raft_detailed_wal_files, parse_response(Body2))),