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rabbit_common
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3.7.16
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3.7.16-rc.3
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3.7.16-rc.2
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3.7.16-rc.1
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3.7.16-beta.1
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3.7.10-rc.1
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3.7.8-rc.1
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3.0.2
0.0.0-rc.1
Modules shared by rabbitmq-server and rabbitmq-erlang-client
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Files
src/rabbit_health_check.erl
%% The contents of this file are subject to the Mozilla Public License
%% Version 1.1 (the "License"); you may not use this file except in
%% compliance with the License. You may obtain a copy of the License
%% at http://www.mozilla.org/MPL/
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and
%% limitations under the License.
%%
%% The Original Code is RabbitMQ.
%%
%% The Initial Developer of the Original Code is GoPivotal, Inc.
%% Copyright (c) 2007-2016 Pivotal Software, Inc. All rights reserved.
%%
-module(rabbit_health_check).
%% External API
-export([node/1, node/2]).
%% Internal API
-export([local/0]).
-spec node(node(), timeout()) -> ok | {badrpc, term()} | {error_string, string()}.
-spec local() -> ok | {error_string, string()}.
%%----------------------------------------------------------------------------
%% External functions
%%----------------------------------------------------------------------------
node(Node) ->
%% same default as in CLI
node(Node, 70000).
node(Node, Timeout) ->
rabbit_misc:rpc_call(Node, rabbit_health_check, local, [], Timeout).
local() ->
run_checks([list_channels, list_queues, alarms, rabbit_node_monitor]).
%%----------------------------------------------------------------------------
%% Internal functions
%%----------------------------------------------------------------------------
run_checks([]) ->
ok;
run_checks([C|Cs]) ->
case node_health_check(C) of
ok ->
run_checks(Cs);
Error ->
Error
end.
node_health_check(list_channels) ->
case rabbit_channel:info_local([pid]) of
L when is_list(L) ->
ok;
Other ->
ErrorMsg = io_lib:format("list_channels unexpected output: ~p",
[Other]),
{error_string, ErrorMsg}
end;
node_health_check(list_queues) ->
health_check_queues(rabbit_vhost:list());
node_health_check(rabbit_node_monitor) ->
case rabbit_node_monitor:partitions() of
L when is_list(L) ->
ok;
Other ->
ErrorMsg = io_lib:format("rabbit_node_monitor reports unexpected partitions value: ~p",
[Other]),
{error_string, ErrorMsg}
end;
node_health_check(alarms) ->
case proplists:get_value(alarms, rabbit:status()) of
[] ->
ok;
Alarms ->
ErrorMsg = io_lib:format("resource alarm(s) in effect:~p", [Alarms]),
{error_string, ErrorMsg}
end.
health_check_queues([]) ->
ok;
health_check_queues([VHost|RestVHosts]) ->
case rabbit_amqqueue:info_local(VHost) of
L when is_list(L) ->
health_check_queues(RestVHosts);
Other ->
ErrorMsg = io_lib:format("list_queues unexpected output for vhost ~s: ~p",
[VHost, Other]),
{error_string, ErrorMsg}
end.