From 56b9238645bf39072fec1f36e5cf69d4799b3538 Mon Sep 17 00:00:00 2001
From: Zhongwen Deng <zhongwencool@gmail.com>
Date: Wed, 1 Feb 2023 12:21:34 +0800
Subject: [PATCH] fix: only cache sys_memory in linux

---
 apps/emqx_management/src/emqx_mgmt.erl     |  2 +-
 apps/emqx_management/src/emqx_mgmt_sup.erl | 10 ++++++++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/apps/emqx_management/src/emqx_mgmt.erl b/apps/emqx_management/src/emqx_mgmt.erl
index f794ef01d..814b39cdc 100644
--- a/apps/emqx_management/src/emqx_mgmt.erl
+++ b/apps/emqx_management/src/emqx_mgmt.erl
@@ -150,7 +150,7 @@ node_info() ->
 get_sys_memory() ->
     case os:type() of
         {unix, linux} ->
-            emqx_mgmt_sys_memory:get_sys_memory();
+            emqx_mgmt_cache:get_sys_memory();
         _ ->
             {0, 0}
     end.
diff --git a/apps/emqx_management/src/emqx_mgmt_sup.erl b/apps/emqx_management/src/emqx_mgmt_sup.erl
index 2d9a9ba8a..713ff87dc 100644
--- a/apps/emqx_management/src/emqx_mgmt_sup.erl
+++ b/apps/emqx_management/src/emqx_mgmt_sup.erl
@@ -26,8 +26,14 @@ start_link() ->
     supervisor:start_link({local, ?MODULE}, ?MODULE, []).
 
 init([]) ->
-    LC = child_spec(emqx_mgmt_cache, 5000, worker),
-    {ok, {{one_for_one, 1, 5}, [LC]}}.
+    Workers =
+        case os:type() of
+            {unix, linux} ->
+                [child_spec(emqx_mgmt_cache, 5000, worker)];
+            _ ->
+                []
+        end,
+    {ok, {{one_for_one, 1, 5}, Workers}}.
 
 child_spec(Mod, Shutdown, Type) ->
     #{