rnewson commented on code in PR #6065:
URL: https://github.com/apache/couchdb/pull/6065#discussion_r3571911799
##########
src/couch_prometheus/src/couch_prometheus.erl:
##########
@@ -384,3 +396,100 @@ get_bt_engine_cache_stats() ->
to_prom(couchdb_bt_engine_cache_memory, gauge, "memory used by the
btree cache", Mem),
to_prom(couchdb_bt_engine_cache_size, gauge, "number of entries in the
btree cache", Size)
].
+
+get_clouseau_status() ->
+ Value =
+ case clouseau_rpc:connected() of
+ true -> ?CLOUSEAU_CONNECTED;
+ false -> ?CLOUSEAU_DISCONNECTED
+ end,
+ to_prom(clouseau_connected, gauge, "clouseau connectivity status", Value).
+
+get_database_count() ->
+ ShardsDb = config:get("mem3", "shards_db", "_dbs"),
+ case fabric:get_db_info(ShardsDb) of
+ {ok, Info} ->
+ DbCount = couch_util:get_value(doc_count, Info),
+ to_prom(database_count, gauge, "total database count", DbCount);
+ {error, Reason} ->
+ couch_log:warning("~p failed to get database count: ~p", [?MODULE,
Reason]),
+ []
+ end.
+
+get_ioq_stats() ->
+ IOQData = ioq:get_disk_queues(),
Review Comment:
function does not exist in couchdb's ioq implementation.
Oddly, https://github.com/apache/couchdb-ioq is where the "real" IOQ is (the
one Cloudant uses and maintains) but it is not in use by couchdb.
Perhaps now is the time to fix that.
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