mirror of
https://github.com/valitydev/riak_test.git
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2b7508dee7
Add partion/1 and heal/1 functions to rt.erl
100 lines
2.8 KiB
Erlang
100 lines
2.8 KiB
Erlang
%%% @author Russell Brown <russelldb@basho.com>
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%%% @copyright (C) 2012, Basho Technologies
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%%% @doc
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%%% riak_test for riak_dt counter convergence,
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%%% @end
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-module(verify_counter_converge).
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-compile(export_all).
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-include_lib("eunit/include/eunit.hrl").
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confirm() ->
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inets:start(),
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Key = a,
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[N1, N2, N3, N4]=Nodes = rt:build_cluster(4),
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[HP1, HP2, HP3, HP4]=Hosts = get_host_ports(Nodes),
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increment_counter(HP1, Key),
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increment_counter(HP2, Key, 10),
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[?assertEqual(11, get_counter(HP, Key)) || HP <- Hosts],
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decrement_counter(HP3, Key),
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decrement_counter(HP4, Key, 2),
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[?assertEqual(8, get_counter(HP, Key)) || HP <- Hosts],
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lager:debug("Partition cluster in two."),
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PartInfo = rt:partition([N1, N2], [N3, N4]),
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%% increment one side
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increment_counter(HP1, Key, 5),
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%% check vaule on one side is different from other
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[?assertEqual(13, get_counter(HP, Key)) || HP <- [HP1, HP2]],
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[?assertEqual(8, get_counter(HP, Key)) || HP <- [HP3, HP4]],
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%% decrement other side
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decrement_counter(HP3, Key, 2),
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%% verify values differ
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[?assertEqual(13, get_counter(HP, Key)) || HP <- [HP1, HP2]],
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[?assertEqual(6, get_counter(HP, Key)) || HP <- [HP3, HP4]],
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%% heal
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lager:debug("Heal and check merged values"),
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ok = rt:heal(PartInfo),
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ok = rt:wait_for_cluster_service(Nodes, riak_dt),
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%% verify all nodes agree
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[?assertEqual(ok, rt:wait_until(HP, fun(N) ->
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11 == get_counter(N, Key)
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end)) || HP <- Hosts],
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pass.
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get_host_ports(Nodes) ->
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{ResL, []} = rpc:multicall(Nodes, application, get_env, [riak_core, http]),
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[{Host, Port} || {ok, [{Host, Port}]} <- ResL].
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%% Counter API
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get_counter(HostPort, Key) ->
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get(HostPort, Key).
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increment_counter(HostPort, Key) ->
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increment_counter(HostPort, Key, 1).
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increment_counter(HostPort, Key, Amt) ->
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update_counter(HostPort, Key, increment, Amt).
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decrement_counter(HostPort, Key) ->
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decrement_counter(HostPort, Key, 1).
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decrement_counter(HostPort, Key, Amt) ->
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update_counter(HostPort, Key, decrement, Amt).
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update_counter(HostPort, Key, Action, Amt) ->
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post(HostPort, [Key, Action], integer_to_list(Amt)).
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%% HTTP API
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url({Host, Port}, PathElements) ->
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Path = path([counters|PathElements]),
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lists:flatten(io_lib:format("http://~s:~p~s", [Host, Port, Path])).
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path(Elements) ->
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[lists:concat(['/', E]) || E <- Elements].
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get(HostPort, Key) ->
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Url = url(HostPort, [Key]),
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{ok, {{_Version, 200, _}, _, Body}} =
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httpc:request(Url),
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list_to_integer(Body).
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post(HostPort, PathElements, Body) ->
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Url = url(HostPort, PathElements),
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{ok, {{_Version, 204, _}, _, _}} =
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httpc:request(post, {Url, [], [], Body}, [], []),
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ok.
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