Don't crash if the alarm gen_event server is not there (i.e. app is not running).bug25627

1 files changed, 4 insertions, 2 deletions

diff --git a/src/rabbit.erl b/src/rabbit.erl
index 1eaddffc..ad748d19 100644
--- a/src/rabbit.erl
+++ b/src/rabbit.erl
@@ -394,7 +394,7 @@ status() ->
           {os,                   os:type()},
           {erlang_version,       erlang:system_info(system_version)},
           {memory,               rabbit_vm:memory()},
-          {alarms,               format_alarms(rabbit_alarm:get_alarms())}],
+          {alarms,               alarms()}],
     S2 = rabbit_misc:filter_exit_map(
            fun ({Key, {M, F, A}}) -> {Key, erlang:apply(M, F, A)} end,
            [{vm_memory_high_watermark, {vm_memory_monitor,
@@ -417,7 +417,9 @@ status() ->
                              end}],
     S1 ++ S2 ++ S3 ++ S4.
 
-format_alarms(Alarms) ->
+alarms() ->
+    Alarms = rabbit_misc:with_exit_handler(rabbit_misc:const([]),
+                                           fun rabbit_alarm:get_alarms/0),
     N = node(),
     %% [{{resource_limit,memory,rabbit@mercurio},[]}]
     [Limit || {{resource_limit, Limit, Node}, _} <- Alarms, Node =:= N].