mirror of
https://github.com/valitydev/riak_test.git
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112 lines
3.3 KiB
Erlang
112 lines
3.3 KiB
Erlang
%% -------------------------------------------------------------------
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%%
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%% Copyright (c) 2012 Basho Technologies, Inc.
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%%
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%% This file is provided to you under the Apache License,
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%% Version 2.0 (the "License"); you may not use this file
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%% except in compliance with the License. You may obtain
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%% a copy of the License at
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%%
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%% http://www.apache.org/licenses/LICENSE-2.0
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%%
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%% Unless required by applicable law or agreed to in writing,
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%% software distributed under the License is distributed on an
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%% "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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%% KIND, either express or implied. See the License for the
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%% specific language governing permissions and limitations
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%% under the License.
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%%
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%% -------------------------------------------------------------------
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%%% @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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-behavior(riak_test).
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-export([confirm/0, set_allow_mult_true/1, set_allow_mult_true/2]).
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-include_lib("eunit/include/eunit.hrl").
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-define(BUCKET, <<"test-counters">>).
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confirm() ->
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Key = <<"a">>,
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[N1, N2, N3, N4]=Nodes = rt:build_cluster(4),
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[C1, C2, C3, C4]=Clients = [ rt:httpc(N) || N <- Nodes ],
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set_allow_mult_true(Nodes),
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increment_counter(C1, Key),
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increment_counter(C2, Key, 10),
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[?assertEqual(11, get_counter(C, Key)) || C <- Clients],
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decrement_counter(C3, Key),
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decrement_counter(C4, Key, 2),
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[?assertEqual(8, get_counter(C, Key)) || C <- Clients],
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lager:info("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(C1, Key, 5),
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%% check value on one side is different from other
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[?assertEqual(13, get_counter(C, Key)) || C <- [C1, C2]],
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[?assertEqual(8, get_counter(C, Key)) || C <- [C3, C4]],
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%% decrement other side
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decrement_counter(C3, Key, 2),
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%% verify values differ
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[?assertEqual(13, get_counter(C, Key)) || C <- [C1, C2]],
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[?assertEqual(6, get_counter(C, Key)) || C <- [C3, C4]],
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%% heal
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lager:info("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_kv),
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%% verify all nodes agree
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[?assertEqual(ok, rt:wait_until(fun() ->
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11 == get_counter(HP, Key)
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end)) || HP <- Clients ],
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pass.
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set_allow_mult_true(Nodes) ->
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set_allow_mult_true(Nodes, ?BUCKET).
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set_allow_mult_true(Nodes, Bucket) ->
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%% Counters REQUIRE allow_mult=true
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N1 = hd(Nodes),
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AllowMult = [{allow_mult, true}],
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lager:info("Setting bucket properties ~p for bucket ~p on node ~p",
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[AllowMult, Bucket, N1]),
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rpc:call(N1, riak_core_bucket, set_bucket, [Bucket, AllowMult]),
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rt:wait_until_ring_converged(Nodes).
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%% Counter API
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get_counter(Client, Key) ->
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{ok, Val} = rhc:counter_val(Client, ?BUCKET, Key),
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Val.
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increment_counter(Client, Key) ->
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increment_counter(Client, Key, 1).
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increment_counter(Client, Key, Amt) ->
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update_counter(Client, Key, Amt).
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decrement_counter(Client, Key) ->
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decrement_counter(Client, Key, 1).
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decrement_counter(Client, Key, Amt) ->
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update_counter(Client, Key, -Amt).
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update_counter(Client, Key, Amt) ->
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rhc:counter_incr(Client, ?BUCKET, Key, Amt).
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