Require feature flag message_containers_deaths_v2

ansd · ansd · commit cb53a2140ae2 · 2025-10-16T10:18:22.000+02:00
Require feature flag `message_containers_deaths_v2`
for RabbitMQ 4.3 and delete the compatibility code.
diff --git a/deps/rabbit/Makefile b/deps/rabbit/Makefile
@@ -274,7 +274,7 @@ PARALLEL_CT_SET_2_D = queue_length_limits queue_parallel quorum_queue_member_rec
 
 PARALLEL_CT_SET_3_A = definition_import per_user_connection_channel_limit_partitions per_vhost_connection_limit_partitions policy priority_queue_recovery rabbit_fifo_v0 rabbit_stream_sac_coordinator_v4 rabbit_stream_sac_coordinator unit_credit_flow unit_queue_consumers unit_queue_location unit_quorum_queue
 PARALLEL_CT_SET_3_B = cluster_upgrade list_consumers_sanity_check list_queues_online_and_offline logging lqueue maintenance_mode rabbit_fifo_q
-PARALLEL_CT_SET_3_C = cli_forget_cluster_node feature_flags_v2 mc_unit message_containers_deaths_v2 message_size_limit metadata_store_migration
+PARALLEL_CT_SET_3_C = cli_forget_cluster_node feature_flags_v2 mc_unit message_size_limit metadata_store_migration
 PARALLEL_CT_SET_3_D = metadata_store_phase1 metrics mirrored_supervisor peer_discovery_classic_config proxy_protocol runtime_parameters unit_stats_and_metrics unit_supervisor2 unit_vm_memory_monitor
 
 PARALLEL_CT_SET_4_A = clustering_events rabbit_local_random_exchange rabbit_msg_interceptor rabbitmq_4_0_deprecations unit_pg_local unit_plugin_directories unit_plugin_versioning unit_policy_validators unit_priority_queue
diff --git a/deps/rabbit/include/mc.hrl b/deps/rabbit/include/mc.hrl
@@ -13,8 +13,6 @@
 -define(ANN_DURABLE, d).
 -define(ANN_PRIORITY, p).
 
--define(FF_MC_DEATHS_V2, message_containers_deaths_v2).
-
 -type death_key() :: {SourceQueue :: rabbit_misc:resource_name(), rabbit_dead_letter:reason()}.
 -type death_anns() :: #{%% timestamp of the first time this message
                         %% was dead lettered from this queue for this reason
diff --git a/deps/rabbit/src/mc.erl b/deps/rabbit/src/mc.erl
@@ -35,7 +35,7 @@
          convert/3,
          protocol_state/1,
          prepare/2,
-         record_death/4,
+         record_death/3,
          is_death_cycle/2,
          death_queue_names/1
         ]).
@@ -382,11 +382,8 @@ protocol_state(BasicMsg) ->
 
 -spec record_death(rabbit_dead_letter:reason(),
                    rabbit_misc:resource_name(),
-                   state(),
-                   environment()) -> state().
-record_death(Reason, SourceQueue,
-             #?MODULE{annotations = Anns0} = State,
-             Env)
+                   state()) -> state().
+record_death(Reason, SourceQueue, #?MODULE{annotations = Anns0} = State)
   when is_atom(Reason) andalso
        is_binary(SourceQueue) ->
     Key = {SourceQueue, Reason},
@@ -438,25 +435,17 @@ record_death(Reason, SourceQueue,
                           <<"x-last-death-exchange">> => Exchange,
                           deaths := Deaths};
                _ ->
-                   Deaths = case Env of
-                                #{?FF_MC_DEATHS_V2 := false} ->
-                                    #deaths{last = Key,
-                                            first = Key,
-                                            records = #{Key => NewDeath}};
-                                _ ->
-                                    [{Key, NewDeath}]
-                            end,
                    Anns0#{<<"x-first-death-reason">> => ReasonBin,
                           <<"x-first-death-queue">> => SourceQueue,
                           <<"x-first-death-exchange">> => Exchange,
                           <<"x-last-death-reason">> => ReasonBin,
                           <<"x-last-death-queue">> => SourceQueue,
                           <<"x-last-death-exchange">> => Exchange,
-                          deaths => Deaths}
+                          deaths => [{Key, NewDeath}]}
            end,
     State#?MODULE{annotations = Anns};
-record_death(Reason, SourceQueue, BasicMsg, Env) ->
-    mc_compat:record_death(Reason, SourceQueue, BasicMsg, Env).
+record_death(Reason, SourceQueue, BasicMsg) ->
+    mc_compat:record_death(Reason, SourceQueue, BasicMsg).
 
 update_death(#death{count = Count,
                     anns = DeathAnns} = Death, Timestamp) ->
diff --git a/deps/rabbit/src/mc_compat.erl b/deps/rabbit/src/mc_compat.erl
@@ -28,7 +28,7 @@
          protocol_state/1,
          %serialize/1,
          prepare/2,
-         record_death/4,
+         record_death/3,
          is_death_cycle/2,
          %deaths/1,
          death_queue_names/1
@@ -166,7 +166,7 @@ prepare(store, Msg) ->
 record_death(Reason, SourceQueue,
              #basic_message{content = Content,
                             exchange_name = Exchange,
-                            routing_keys = RoutingKeys} = Msg, _Env) ->
+                            routing_keys = RoutingKeys} = Msg) ->
     % HeadersFun1 = fun (H) -> lists:keydelete(<<"CC">>, 1, H) end,
     ReasonBin = atom_to_binary(Reason),
     TimeSec = os:system_time(seconds),
diff --git a/deps/rabbit/src/rabbit_core_ff.erl b/deps/rabbit/src/rabbit_core_ff.erl
@@ -187,7 +187,7 @@
    {message_containers_deaths_v2,
     #{desc          => "Bug fix for dead letter cycle detection",
       doc_url       => "https://github.com/rabbitmq/rabbitmq-server/issues/11159",
-      stability     => stable,
+      stability     => required,
       depends_on    => [message_containers]
      }}).
 
diff --git a/deps/rabbit/src/rabbit_dead_letter.erl b/deps/rabbit/src/rabbit_dead_letter.erl
@@ -32,11 +32,7 @@ publish(Msg0, Reason, #exchange{name = XName} = DLX, RK,
                   _ ->
                       [RK]
               end,
-    Env = case rabbit_feature_flags:is_enabled(?FF_MC_DEATHS_V2) of
-              true -> #{};
-              false -> #{?FF_MC_DEATHS_V2 => false}
-          end,
-    Msg1 = mc:record_death(Reason, SourceQName, Msg0, Env),
+    Msg1 = mc:record_death(Reason, SourceQName, Msg0),
     {Ttl, Msg2} = mc:take_annotation(dead_letter_ttl, Msg1),
     Msg3 = mc:set_ttl(Ttl, Msg2),
     Msg4 = mc:set_annotation(?ANN_ROUTING_KEYS, DLRKeys, Msg3),
diff --git a/deps/rabbit/src/rabbit_fifo_dlx_worker.erl b/deps/rabbit/src/rabbit_fifo_dlx_worker.erl
@@ -325,11 +325,7 @@ forward(ConsumedMsg, ConsumedMsgId, ConsumedQRef, DLX, Reason,
                   _ ->
                       [RKey]
               end,
-    Env = case rabbit_feature_flags:is_enabled(?FF_MC_DEATHS_V2) of
-              true -> #{};
-              false -> #{?FF_MC_DEATHS_V2 => false}
-          end,
-    Msg0 = mc:record_death(Reason, SourceQName, ConsumedMsg, Env),
+    Msg0 = mc:record_death(Reason, SourceQName, ConsumedMsg),
     Msg1 = mc:set_ttl(undefined, Msg0),
     Msg2 = mc:set_annotation(?ANN_ROUTING_KEYS, DLRKeys, Msg1),
     Msg = mc:set_annotation(?ANN_EXCHANGE, DLXName, Msg2),
diff --git a/deps/rabbit/test/amqp_client_SUITE.erl b/deps/rabbit/test/amqp_client_SUITE.erl
@@ -246,18 +246,11 @@ init_per_group(Group, Config) ->
       rabbit_ct_client_helpers:setup_steps()).
 
 end_per_group(_, Config) ->
-    rabbit_ct_helpers:run_teardown_steps(Config,
+    rabbit_ct_helpers:run_teardown_steps(
+      Config,
       rabbit_ct_client_helpers:teardown_steps() ++
       rabbit_ct_broker_helpers:teardown_steps()).
 
-init_per_testcase(T = dead_letter_reject, Config) ->
-    case rabbit_ct_broker_helpers:enable_feature_flag(Config, message_containers_deaths_v2) of
-        ok ->
-            rabbit_ct_helpers:testcase_started(Config, T);
-        _ ->
-            {skip, "This test is known to fail with feature flag message_containers_deaths_v2 disabled "
-             "due bug https://github.com/rabbitmq/rabbitmq-server/issues/11159"}
-    end;
 init_per_testcase(Testcase, Config) ->
     rabbit_ct_helpers:testcase_started(Config, Testcase).
 
@@ -5116,34 +5109,29 @@ dead_letter_headers_exchange(Config) ->
     ?assertEqual(<<"m2">>, amqp10_msg:body_bin(Msg2)),
     ?assertEqual(#{message_id => <<"my ID">>}, amqp10_msg:properties(Msg1)),
     ?assertEqual(0, maps:size(amqp10_msg:properties(Msg2))),
-    case rpc(Config, rabbit_feature_flags, is_enabled, [message_containers_deaths_v2]) of
-        true ->
-            ?assertMatch(
-               #{<<"x-first-death-queue">> := QName1,
-                 <<"x-first-death-exchange">> := <<>>,
-                 <<"x-first-death-reason">> := <<"expired">>,
-                 <<"x-last-death-queue">> := QName1,
-                 <<"x-last-death-exchange">> := <<>>,
-                 <<"x-last-death-reason">> := <<"expired">>,
-                 <<"x-opt-deaths">> := {array,
-                                        map,
-                                        [{map,
-                                          [
-                                           {{symbol, <<"queue">>}, {utf8, QName1}},
-                                           {{symbol, <<"reason">>}, {symbol, <<"expired">>}},
-                                           {{symbol, <<"count">>}, {ulong, 1}},
-                                           {{symbol, <<"first-time">>}, {timestamp, Timestamp}},
-                                           {{symbol, <<"last-time">>}, {timestamp, Timestamp}},
-                                           {{symbol, <<"exchange">>},{utf8, <<>>}},
-                                           {{symbol, <<"routing-keys">>}, {array, utf8, [{utf8, QName1}]}}
-                                          ]}]}
-                } when is_integer(Timestamp) andalso
-                       Timestamp > Now - 5000 andalso
-                       Timestamp < Now + 5000,
-                       amqp10_msg:message_annotations(Msg1));
-        false ->
-            ok
-    end,
+    ?assertMatch(
+       #{<<"x-first-death-queue">> := QName1,
+         <<"x-first-death-exchange">> := <<>>,
+         <<"x-first-death-reason">> := <<"expired">>,
+         <<"x-last-death-queue">> := QName1,
+         <<"x-last-death-exchange">> := <<>>,
+         <<"x-last-death-reason">> := <<"expired">>,
+         <<"x-opt-deaths">> := {array,
+                                map,
+                                [{map,
+                                  [
+                                   {{symbol, <<"queue">>}, {utf8, QName1}},
+                                   {{symbol, <<"reason">>}, {symbol, <<"expired">>}},
+                                   {{symbol, <<"count">>}, {ulong, 1}},
+                                   {{symbol, <<"first-time">>}, {timestamp, Timestamp}},
+                                   {{symbol, <<"last-time">>}, {timestamp, Timestamp}},
+                                   {{symbol, <<"exchange">>},{utf8, <<>>}},
+                                   {{symbol, <<"routing-keys">>}, {array, utf8, [{utf8, QName1}]}}
+                                  ]}]}
+        } when is_integer(Timestamp) andalso
+               Timestamp > Now - 5000 andalso
+               Timestamp < Now + 5000,
+               amqp10_msg:message_annotations(Msg1)),
 
     %% We expect M3 and M4 to get dropped.
     receive Unexp -> ct:fail({unexpected, Unexp})
diff --git a/deps/rabbit/test/dead_lettering_SUITE.erl b/deps/rabbit/test/dead_lettering_SUITE.erl
@@ -176,18 +176,7 @@ end_per_group(Group, Config) ->
             Config
     end.
 
-init_per_testcase(T, Config)
-  when T =:= dead_letter_reject_expire_expire orelse
-       T =:= stream ->
-    %% With feature flag message_containers_deaths_v2 disabled, test case:
-    %% * dead_letter_reject_expire_expire is known to fail due to https://github.com/rabbitmq/rabbitmq-server/issues/11159
-    %% * stream is known to fail due to https://github.com/rabbitmq/rabbitmq-server/issues/11173
-    ok = rabbit_ct_broker_helpers:enable_feature_flag(Config, message_containers_deaths_v2),
-    init_per_testcase0(T, Config);
 init_per_testcase(Testcase, Config) ->
-    init_per_testcase0(Testcase, Config).
-
-init_per_testcase0(Testcase, Config) ->
     Group = proplists:get_value(name, ?config(tc_group_properties, Config)),
     Q = rabbit_data_coercion:to_binary(io_lib:format("~p_~p", [Group, Testcase])),
     Q2 = rabbit_data_coercion:to_binary(io_lib:format("~p_~p_2", [Group, Testcase])),
diff --git a/deps/rabbit/test/mc_unit_SUITE.erl b/deps/rabbit/test/mc_unit_SUITE.erl
@@ -29,8 +29,7 @@ all_tests() ->
      amqpl_compat,
      amqpl_table_x_header,
      amqpl_table_x_header_array_of_tbls,
-     amqpl_death_v1_records,
-     amqpl_death_v2_records,
+     amqpl_death_records,
      is_death_cycle,
      amqpl_amqp_bin_amqpl,
      amqpl_cc_amqp_bin_amqpl,
@@ -198,50 +197,39 @@ amqpl_table_x_header_array_of_tbls(_Config) ->
                   ]},
                  mc:x_header(<<"x-fruit">>, Msg)).
 
-amqpl_death_v1_records(_Config) ->
-    ok = amqpl_death_records(#{?FF_MC_DEATHS_V2 => false}).
-
-amqpl_death_v2_records(_Config) ->
-    ok = amqpl_death_records(#{?FF_MC_DEATHS_V2 => true}).
-
-amqpl_death_records(Env) ->
+amqpl_death_records(_Config) ->
     Content = #content{class_id = 60,
                        properties = #'P_basic'{headers = []},
                        payload_fragments_rev = [<<"data">>]},
     Msg0 = mc:prepare(store, mc:init(mc_amqpl, Content, annotations())),
 
-    Msg1 = mc:record_death(rejected, <<"q1">>, Msg0, Env),
-    ?assertEqual([<<"q1">>], mc:death_queue_names(Msg1)),
-    ?assertEqual(false, mc:is_death_cycle(<<"q1">>, Msg1)),
+    Msg1 = mc:record_death(rejected, <<"q">>, Msg0),
+    ?assertEqual([<<"q">>], mc:death_queue_names(Msg1)),
+    ?assertEqual(false, mc:is_death_cycle(<<"q">>, Msg1)),
 
     #content{properties = #'P_basic'{headers = H1}} = mc:protocol_state(Msg1),
     ?assertMatch({_, array, [_]}, header(<<"x-death">>, H1)),
-    ?assertMatch({_, longstr, <<"q1">>}, header(<<"x-first-death-queue">>, H1)),
+    ?assertMatch({_, longstr, <<"q">>}, header(<<"x-first-death-queue">>, H1)),
     ?assertMatch({_, longstr, <<"exch">>}, header(<<"x-first-death-exchange">>, H1)),
     ?assertMatch({_, longstr, <<"rejected">>}, header(<<"x-first-death-reason">>, H1)),
-    ?assertMatch({_, longstr, <<"q1">>}, header(<<"x-last-death-queue">>, H1)),
+    ?assertMatch({_, longstr, <<"q">>}, header(<<"x-last-death-queue">>, H1)),
     ?assertMatch({_, longstr, <<"exch">>}, header(<<"x-last-death-exchange">>, H1)),
     ?assertMatch({_, longstr, <<"rejected">>}, header(<<"x-last-death-reason">>, H1)),
     {_, array, [{table, T1}]} = header(<<"x-death">>, H1),
     ?assertMatch({_, long, 1}, header(<<"count">>, T1)),
     ?assertMatch({_, longstr, <<"rejected">>}, header(<<"reason">>, T1)),
-    ?assertMatch({_, longstr, <<"q1">>}, header(<<"queue">>, T1)),
+    ?assertMatch({_, longstr, <<"q">>}, header(<<"queue">>, T1)),
     ?assertMatch({_, longstr, <<"exch">>}, header(<<"exchange">>, T1)),
     ?assertMatch({_, timestamp, _}, header(<<"time">>, T1)),
     ?assertMatch({_, array, [{longstr, <<"apple">>}]}, header(<<"routing-keys">>, T1)),
 
-
-    %% second dead letter, e.g. an expired reason returning to source queue
-
-    %% record_death uses a timestamp for death record ordering, ensure
-    %% it is definitely higher than the last timestamp taken
-    timer:sleep(2),
-    Msg2 = mc:record_death(expired, <<"dl">>, Msg1, Env),
-
+    %% 2nd dead letter, e.g. an expired reason
+    Msg2 = mc:record_death(expired, <<"dead letter queue">>, Msg1),
     #content{properties = #'P_basic'{headers = H2}} = mc:protocol_state(Msg2),
+    %% We expect deaths to be ordered by recency
     {_, array, [{table, T2a}, {table, T2b}]} = header(<<"x-death">>, H2),
-    ?assertMatch({_, longstr, <<"dl">>}, header(<<"queue">>, T2a)),
-    ?assertMatch({_, longstr, <<"q1">>}, header(<<"queue">>, T2b)),
+    ?assertMatch({_, longstr, <<"dead letter queue">>}, header(<<"queue">>, T2a)),
+    ?assertMatch({_, longstr, <<"q">>}, header(<<"queue">>, T2b)),
     ok.
 
 is_death_cycle(_Config) ->
@@ -254,29 +242,29 @@ is_death_cycle(_Config) ->
     %% Q1 --rejected--> Q2 --expired--> Q3 --expired-->
     %% Q1 --rejected--> Q2 --expired--> Q3
 
-    Msg1 = mc:record_death(rejected, <<"q1">>, Msg0, #{}),
+    Msg1 = mc:record_death(rejected, <<"q1">>, Msg0),
     ?assertNot(mc:is_death_cycle(<<"q1">>, Msg1),
                "A queue that dead letters to itself due to rejected is not considered a cycle."),
     ?assertNot(mc:is_death_cycle(<<"q2">>, Msg1)),
     ?assertNot(mc:is_death_cycle(<<"q3">>, Msg1)),
 
-    Msg2 = mc:record_death(expired, <<"q2">>, Msg1, #{}),
+    Msg2 = mc:record_death(expired, <<"q2">>, Msg1),
     ?assertNot(mc:is_death_cycle(<<"q1">>, Msg2)),
     ?assert(mc:is_death_cycle(<<"q2">>, Msg2),
             "A queue that dead letters to itself due to expired is considered a cycle."),
     ?assertNot(mc:is_death_cycle(<<"q3">>, Msg2)),
 
-    Msg3 = mc:record_death(expired, <<"q3">>, Msg2, #{}),
+    Msg3 = mc:record_death(expired, <<"q3">>, Msg2),
     ?assertNot(mc:is_death_cycle(<<"q1">>, Msg3)),
     ?assert(mc:is_death_cycle(<<"q2">>, Msg3)),
     ?assert(mc:is_death_cycle(<<"q3">>, Msg3)),
 
-    Msg4 = mc:record_death(rejected, <<"q1">>, Msg3, #{}),
+    Msg4 = mc:record_death(rejected, <<"q1">>, Msg3),
     ?assertNot(mc:is_death_cycle(<<"q1">>, Msg4)),
     ?assertNot(mc:is_death_cycle(<<"q2">>, Msg4)),
     ?assertNot(mc:is_death_cycle(<<"q3">>, Msg4)),
 
-    Msg5 = mc:record_death(expired, <<"q2">>, Msg4, #{}),
+    Msg5 = mc:record_death(expired, <<"q2">>, Msg4),
     ?assertNot(mc:is_death_cycle(<<"q1">>, Msg5)),
     ?assert(mc:is_death_cycle(<<"q2">>, Msg5)),
     ?assertNot(mc:is_death_cycle(<<"q3">>, Msg5)),
diff --git a/deps/rabbit/test/message_containers_deaths_v2_SUITE.erl b/deps/rabbit/test/message_containers_deaths_v2_SUITE.erl
