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Merge pull request #7056 from lafirest/fix/upgrade 

fix(emqx_slow_subs): add upgrade action
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lafirest 2022-02-18 15:11:38 +08:00 committed by GitHub
parent 296f48268e 8a75b53052
commit 513942a2d8
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 36 additions and 7 deletions
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12
apps/emqx_plugin_libs/src/emqx_plugin_libs.appup.src
View File

@ -1,13 +1,13 @@
%% -*- mode: erlang -*-
{VSN,
[{"4.4.0",
[ {load_module,emqx_slow_subs,brutal_purge,soft_purge,[]}
[ {update, emqx_slow_subs, {advanced, ["4.4.0"]}}
, {load_module,emqx_slow_subs_api,brutal_purge,soft_purge,[]}
]},
{<<".*">>,[]}],
[{"4.4.0",
[ {load_module,emqx_slow_subs,brutal_purge,soft_purge,[]}
, {load_module,emqx_slow_subs_api,brutal_purge,soft_purge,[]}
]},
{<<".*">>,[]}]
[{"4.4.0",
[ {update, emqx_slow_subs, {advanced, ["4.4.0"]}}
, {load_module,emqx_slow_subs_api,brutal_purge,soft_purge,[]}
]},
{<<".*">>,[]}]
}.

31
apps/emqx_plugin_libs/src/emqx_slow_subs/emqx_slow_subs.erl
View File

@ -180,7 +180,36 @@ terminate(_Reason, _) ->
unload(),
ok.
code_change(_OldVsn, State, _Extra) ->
code_change({down, _Vsn}, #{config := Cfg} = State, ["4.4.0"]) ->
unload(),
MaxSize = get_value(top_k_num, Cfg),
_ = emqx:hook('message.slow_subs_stats',
{?MODULE, on_stats_update, [#{max_size => MaxSize}]}),
erlang:send_after(?EXPIRE_CHECK_INTERVAL, self(), ?FUNCTION_NAME),
{ok, State};
code_change(_OldVsn, #{config := Conf} = State, ["4.4.0"]) ->
HookPoint = 'message.slow_subs_stats',
case emqx_hooks:lookup(HookPoint) of
[Action | _] ->
emqx_hooks:del(HookPoint, Action);
_ ->
ok
end,
try
ets:delete_all_objects(?TOPK_TAB)
catch _:_ ->
ok
end,
init_tab(),
expire_tick(Conf),
load(Conf),
{ok, State};
code_change(_OldVsn, State, _Extras) ->
{ok, State}.
%%--------------------------------------------------------------------