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rabbit_fifo: Expose each smallest raft index in overview/1 #14493

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Sep 3, 2025
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rabbit_fifo: Expose each smallest raft index in overview/1 #14493

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10 changes: 9 additions & 1 deletion deps/rabbit/src/rabbit_fifo.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -912,7 +912,8 @@ overview(#?STATE{consumers = Cons,
in_memory_message_bytes => 0, %% backwards compat
num_in_memory_ready_messages => 0, %% backwards compat
release_cursor_enqueue_counter => EnqCount,
smallest_raft_index => smallest_raft_index(State)
smallest_raft_index => smallest_raft_index(State),
smallest_raft_index_overview => smallest_raft_index_overview(State)
},
DlxOverview = rabbit_fifo_dlx:overview(DlxState),
maps:merge(maps:merge(Overview, DlxOverview), SacOverview).
Expand Down Expand Up @@ -2826,6 +2827,13 @@ smallest_raft_index(#?STATE{messages = Messages,
SmallestRaIdx = rabbit_fifo_index:smallest(Indexes),
min(min(SmallestDlxRaIdx, SmallestMsgsRaIdx), SmallestRaIdx).

smallest_raft_index_overview(#?STATE{messages = Messages,
ra_indexes = Indexes,
dlx = DlxState}) ->
#{message => rabbit_fifo_q:get_lowest_index(Messages),
checked_out => rabbit_fifo_index:smallest(Indexes),
dlx => rabbit_fifo_dlx:smallest_raft_index(DlxState)}.

make_requeue(ConsumerKey, Notify, [{MsgId, Idx, Header, Msg}], Acc) ->
lists:reverse([{append,
#requeue{consumer_key = ConsumerKey,
Expand Down
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