Merge pull request #8124 from rabbitmq/mergify/bp/v3.12.x/pr-8123

Peer discovery: shrink QQ replicas on forced node removal (backport #8123)

Author: michaelklishin

deps/rabbitmq_peer_discovery_common/src/rabbit_peer_discovery_cleanup.erl

@@ -277,7 +277,11 @@ maybe_remove_nodes([Node | Nodes], false) ->
     ?LOG_WARNING(
        "Peer discovery: removing unknown node ~ts from the cluster", [Node],
        #{domain => ?RMQLOG_DOMAIN_PEER_DIS}),
-    rabbit_mnesia:forget_cluster_node(Node, false),
+    _ = rabbit_mnesia:forget_cluster_node(Node, false),
+    ?LOG_WARNING(
+        "Peer discovery: removing all quorum queue replicas on node ~ts", [Node],
+        #{domain => ?RMQLOG_DOMAIN_PEER_DIS}),
+     _ = rabbit_quorum_queue:shrink_all(Node),
     maybe_remove_nodes(Nodes, false).
 
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