%% ------------------------------------------------------------------- %% %% Machi: a small village of replicated files %% %% Copyright (c) 2014 Basho Technologies, Inc. All Rights Reserved. %% %% This file is provided to you under the Apache License, %% Version 2.0 (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.apache.org/licenses/LICENSE-2.0 %% %% Unless required by applicable law or agreed to in writing, %% software distributed under the License is distributed on an %% "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY %% KIND, either express or implied. See the License for the %% specific language governing permissions and limitations %% under the License. %% %% ------------------------------------------------------------------- -module(machi_chain_manager1_test). -include("machi.hrl"). -include("machi_projection.hrl"). -define(MGR, machi_chain_manager1). -define(D(X), io:format(user, "~s ~p\n", [??X, X])). -define(Dw(X), io:format(user, "~s ~w\n", [??X, X])). -define(FLU_C, machi_flu1_client). -define(FLU_PC, machi_proxy_flu1_client). -export([]). -ifdef(TEST). -ifdef(EQC). -include_lib("eqc/include/eqc.hrl"). %% -include_lib("eqc/include/eqc_statem.hrl"). -define(QC_OUT(P), eqc:on_output(fun(Str, Args) -> io:format(user, Str, Args) end, P)). -endif. -include_lib("eunit/include/eunit.hrl"). -compile(export_all). %% @doc Create a summary report of all of the *private* projections of %% each of the FLUs in the chain, and create a summary for each %% epoch number. %% %% Report format: list({EpochNumber:non_neg_integer(), Report:rpt()}) %% rpt(): {'ok_disjoint', unique_upi_repair_lists()} | %% {'bummer_NOT_DISJOINT', {flat(), summaries()} %% unique_upi_repair_lists(): list(upi_and_repair_lists_concatenated()) %% flat(): debugging term; any duplicate in this list is an invalid FLU. %% summaries(): list({FLU, ProjectionSummary:string() | 'not_in_this_epoch'}) %% %% Example: %% %% [{1,{ok_disjoint,[[a,b,c]]}}, %% {4,{ok_disjoint,[[a,b,c]]}}, %% {6,{ok_disjoint,[[a,b,c]]}}, %% {16,{ok_disjoint,[[a,b,c]]}}, %% {22,{ok_disjoint,[[b]]}}, %% {1174, %% {bummer_NOT_DISJOINT,{[a,a,b], %% [{a,"[{epoch,1174},{author,a},{upi,[a]},{repair,[]},{down,[b]},{d,[{ps,[{a,b},{b,a}]},{nodes_up,[a]}]},{d2,[]}]"}, %% {b,"[{epoch,1174},{author,b},{upi,[b]},{repair,[a]},{down,[]},{d,[{ps,[]},{nodes_up,[a,b]}]},{d2,[]}]"}]}}}, %% ...] unanimous_report(Namez) -> UniquePrivateEs = lists:usort(lists:flatten( [element(2, ?FLU_PC:list_all_projections(FLU, private)) || {_FLUName, FLU} <- Namez])), [{Epoch, unanimous_report(Epoch, Namez)} || Epoch <- UniquePrivateEs, Epoch /= 0]. unanimous_report(Epoch, Namez) -> FLU_Projs = [{FLUName, case ?FLU_PC:read_projection(FLU, private, Epoch) of {ok, T} -> T; _Else -> not_in_this_epoch end} || {FLUName, FLU} <- Namez], unanimous_report2(FLU_Projs). unanimous_report2(FLU_Projs) -> ProjsSumms = [{FLU, if is_tuple(P) -> Summ = machi_projection:make_summary(P), lists:flatten(io_lib:format("~w", [Summ])); is_atom(P) -> P end} || {FLU, P} <- FLU_Projs], UPI_R_Sums = [{Proj#projection_v1.upi, Proj#projection_v1.repairing, Proj#projection_v1.epoch_csum} || {_FLUname, Proj} <- FLU_Projs, is_record(Proj, projection_v1)], UniqueUPIs = lists:usort([UPI || {UPI, _Repairing, _CSum} <- UPI_R_Sums]), if length(UniqueUPIs) =< 1 -> {ok_disjoint, UniqueUPIs}; true -> Flat = lists:flatten(UniqueUPIs), case lists:usort(Flat) == lists:sort(Flat) of true -> {ok_disjoint, UniqueUPIs}; false -> {bummer_NOT_DISJOINT, {lists:sort(Flat), ProjsSumms}} end end. all_reports_are_disjoint(Report) -> case [X || {_Epoch, Tuple}=X <- Report, element(1, Tuple) /= ok_disjoint] of [] -> true; Else -> Else end. -ifndef(PULSE). simple_chain_state_transition_is_sane_test_() -> {timeout, 60, fun() -> simple_chain_state_transition_is_sane_test2() end}. simple_chain_state_transition_is_sane_test2() -> %% All: A list of all FLUS for a particular test %% UPI1: some combination of All that represents UPI1 %% Repair1: Some combination of (All -- UP1) that represents Repairing1 %% ... then we test check_simple_chain_state_transition_is_sane() with all %% possible UPI1 and Repair1. [true = check_simple_chain_state_transition_is_sane(UPI1, Repair1) || %% The five elements below runs on my MacBook Pro in about 4.8 seconds %% All <- [ [a], [a,b], [a,b,c], [a,b,c,d], [a,b,c,d,e] ], %% For elements on the same MBP is about 0.15 seconds. All <- [ [a], [a,b], [a,b,c], [a,b,c,d] ], UPI1 <- machi_util:combinations(All), Repair1 <- machi_util:combinations(All -- UPI1)]. %% Given a UPI1 and Repair1 list, we calculate all possible good UPI2 %% lists. For all good {UPI1, Repair1} -> UPI2 transitions, then the %% simple_chain_state_transition_is_sane() function must be true. For %% all other UPI2 transitions, simple_chain_state_transition_is_sane() %% must be false. %% %% We include adding an extra possible participant, 'bogus', to the %% list of all possible UPI2 transitions, just to demonstrate that %% adding an extra element/participant/thingie is never sane. check_simple_chain_state_transition_is_sane([], []) -> true; check_simple_chain_state_transition_is_sane(UPI1, Repair1) -> Good_UPI2s = [ X ++ Y || X <- machi_util:ordered_combinations(UPI1), Y <- machi_util:ordered_combinations(Repair1)], All_UPI2s = machi_util:combinations(lists:usort(UPI1 ++ Repair1) ++ [bogus]), [true = ?MGR:simple_chain_state_transition_is_sane(UPI1, Repair1, UPI2) || UPI2 <- Good_UPI2s], [false = ?MGR:simple_chain_state_transition_is_sane(UPI1, Repair1, UPI2) || UPI2 <- (All_UPI2s -- Good_UPI2s)], true. -ifdef(EQC). %% This QuickCheck property is crippled: because the old chain state %% transition check, chain_mgr_legacy:projection_transition_is_sane(), %% is so buggy and the new check is (apparently) so much better, I %% have changed the ?WHENFAIL() criteria to check for either agreement %% _or_ a case where the legacy check says true but the new check says %% false. %% %% On my MacBook Pro, less than 1000 tests are required to find at %% least one problem case for the legacy check that the new check is %% correct for. Running for two seconds can do about 3,500 test %% cases. compare_eqc_setup_test_() -> %% Silly QuickCheck can take a long time to start up, check its %% license, etcetc. %% machi_chain_manager1_test: compare_eqc_setup_test...[1.788 s] ok {timeout, 30, fun() -> eqc:quickcheck(eqc:testing_time(0.1, true)) end}. -define(COMPARE_TIMEOUT, 1.2). %% -define(COMPARE_TIMEOUT, 4.8). compare_legacy_with_v2_chain_transition_check1_test() -> eqc:quickcheck( ?QC_OUT( eqc:testing_time( ?COMPARE_TIMEOUT, prop_compare_legacy_with_v2_chain_transition_check(primitive)))). compare_legacy_with_v2_chain_transition_check2_test() -> eqc:quickcheck( ?QC_OUT( eqc:testing_time( ?COMPARE_TIMEOUT, prop_compare_legacy_with_v2_chain_transition_check(primitive)))). prop_compare_legacy_with_v2_chain_transition_check() -> prop_compare_legacy_with_v2_chain_transition_check(primitive). prop_compare_legacy_with_v2_chain_transition_check(Style) -> %% ?FORALL(All, nonempty(list([a,b,c,d,e])), ?FORALL(All, non_empty(some([a,b,c,d])), ?FORALL({Author1, UPI1, Repair1x, Author2, UPI2, Repair2x}, {elements(All),some(All),some(All),elements(All),some(All),some(All)}, ?IMPLIES(length(lists:usort(UPI1 ++ Repair1x)) > 0 andalso length(lists:usort(UPI2 ++ Repair2x)) > 0, begin MembersDict = orddict:from_list([{X, #p_srvr{name=X}} || X <- All]), Repair1 = Repair1x -- UPI1, Down1 = All -- (UPI1 ++ Repair1), Repair2 = Repair2x -- UPI2, Down2 = All -- (UPI2 ++ Repair2), P1 = machi_projection:new(1, Author1, MembersDict, Down1, UPI1, Repair1, []), P2 = machi_projection:new(2, Author2, MembersDict, Down2, UPI2, Repair2, []), Old_res = chain_mgr_legacy:projection_transition_is_sane( P1, P2, Author1, false), Old_p = case Old_res of true -> true; _ -> false end, case Style of primitive -> New_res = ?MGR:chain_state_transition_is_sane( Author1, UPI1, Repair1, Author2, UPI2, Author2), New_p = case New_res of true -> true; _ -> false end; whole -> New_res = machi_chain_manager1:projection_transition_is_sane( P1, P2, Author1, false), New_p = case New_res of true -> true; _ -> false end end, (catch ets:insert(count, {{Author1, UPI1, Repair1, Author2, UPI2, Repair2}, true})), ?WHENFAIL(io:format(user, "Old_res: ~p/~p (~p)\nNew_res: ~p/~p (why line ~P)\n", [Old_p, Old_res, catch get(why1), New_p, New_res, catch get(why2), 30]), %% Old_p == New_p) Old_p == New_p orelse (Old_p == true andalso New_p == false)) end))). some(L) -> ?LET(L2, list(oneof(L)), dedupe(L2)). dedupe(L) -> dedupe(L, []). dedupe([H|T], Seen) -> case lists:member(H, Seen) of false -> [H|dedupe(T, [H|Seen])]; true -> dedupe(T, Seen) end; dedupe([], _) -> []. make_prop_ets() -> ets:new(count, [named_table, set, public]). -endif. % EQC smoke0_test() -> {ok, _} = machi_partition_simulator:start_link({1,2,3}, 50, 50), Host = "localhost", TcpPort = 6623, {ok, FLUa} = machi_flu1:start_link([{a,TcpPort,"./data.a"}]), Pa = #p_srvr{name=a, address=Host, port=TcpPort}, Members_Dict = machi_projection:make_members_dict([Pa]), %% Egadz, more racing on startup, yay. TODO fix. timer:sleep(1), {ok, FLUaP} = ?FLU_PC:start_link(Pa), {ok, M0} = ?MGR:start_link(a, Members_Dict, [{active_mode, false}]), try pong = ?MGR:ping(M0) after ok = ?MGR:stop(M0), ok = machi_flu1:stop(FLUa), ok = ?FLU_PC:quit(FLUaP), ok = machi_partition_simulator:stop() end. smoke1_test_() -> {timeout, 1*60, fun() -> smoke1_test2() end}. smoke1_test2() -> machi_partition_simulator:start_link({1,2,3}, 100, 0), TcpPort = 62777, FluInfo = [{a,TcpPort+0,"./data.a"}, {b,TcpPort+1,"./data.b"}, {c,TcpPort+2,"./data.c"}], P_s = [#p_srvr{name=Name, address="localhost", port=Port} || {Name,Port,_Dir} <- FluInfo], [machi_flu1_test:clean_up_data_dir(Dir) || {_,_,Dir} <- FluInfo], FLUs = [element(2, machi_flu1:start_link([{Name,Port,Dir}])) || {Name,Port,Dir} <- FluInfo], MembersDict = machi_projection:make_members_dict(P_s), {ok, M0} = ?MGR:start_link(a, MembersDict, [{active_mode,false}]), try {ok, P1} = ?MGR:test_calc_projection(M0, false), % DERP! Check for race with manager's proxy vs. proj listener ok = lists:foldl( fun(_, {_,{true,[{c,ok},{b,ok},{a,ok}]}}) -> ok; % Short-circuit remaining attempts (_, ok) -> ok; % Skip remaining! (_, _Else) -> timer:sleep(10), ?MGR:test_write_public_projection(M0, P1) end, not_ok, lists:seq(1, 1000)), %% Writing the exact same projection multiple times returns ok: %% no change! {_,{true,[{c,ok},{b,ok},{a,ok}]}} = ?MGR:test_write_public_projection(M0, P1), {unanimous, P1, Extra1} = ?MGR:test_read_latest_public_projection(M0, false), ok after ok = ?MGR:stop(M0), [ok = machi_flu1:stop(X) || X <- FLUs], ok = machi_partition_simulator:stop() end. nonunanimous_setup_and_fix_test() -> machi_partition_simulator:start_link({1,2,3}, 100, 0), TcpPort = 62877, FluInfo = [{a,TcpPort+0,"./data.a"}, {b,TcpPort+1,"./data.b"}], P_s = [#p_srvr{name=Name, address="localhost", port=Port} || {Name,Port,_Dir} <- FluInfo], [machi_flu1_test:clean_up_data_dir(Dir) || {_,_,Dir} <- FluInfo], {ok, SupPid} = machi_flu_sup:start_link(), Opts = [{active_mode, false}], %% {ok, Mb} = ?MGR:start_link(b, MembersDict, [{active_mode, false}]++XX), [{ok,_}=machi_flu_psup:start_flu_package(Name, Port, Dir, Opts) || {Name,Port,Dir} <- FluInfo], [Proxy_a, Proxy_b] = Proxies = [element(2,?FLU_PC:start_link(P)) || P <- P_s], MembersDict = machi_projection:make_members_dict(P_s), [Ma,Mb] = [a_chmgr, b_chmgr], ok = machi_chain_manager1:set_chain_members(Ma, MembersDict, []), ok = machi_chain_manager1:set_chain_members(Mb, MembersDict, []), try {ok, P1} = ?MGR:test_calc_projection(Ma, false), P1a = machi_projection:update_checksum( P1#projection_v1{down=[b], upi=[a], dbg=[{hackhack, ?LINE}]}), P1b = machi_projection:update_checksum( P1#projection_v1{author_server=b, creation_time=now(), down=[a], upi=[b], dbg=[{hackhack, ?LINE}]}), %% Scribble different projections ok = ?FLU_PC:write_projection(Proxy_a, public, P1a), ok = ?FLU_PC:write_projection(Proxy_b, public, P1b), %% ?D(x), {not_unanimous,_,_}=_XX = ?MGR:test_read_latest_public_projection( Ma, false), %% ?Dw(_XX), {not_unanimous,_,_}=_YY = ?MGR:test_read_latest_public_projection( Ma, true), %% The read repair here doesn't automatically trigger the creation of %% a new projection (to try to create a unanimous projection). So %% we expect nothing to change when called again. {not_unanimous,_,_}=_YY = ?MGR:test_read_latest_public_projection( Ma, true), {now_using, _, EpochNum_a} = ?MGR:trigger_react_to_env(Ma), {no_change, _, EpochNum_a} = ?MGR:trigger_react_to_env(Ma), {unanimous,P2,_E2} = ?MGR:test_read_latest_public_projection(Ma, false), {ok, P2pa} = ?FLU_PC:read_latest_projection(Proxy_a, private), P2 = P2pa#projection_v1{dbg2=[]}, %% Poke FLUb to react ... should be using the same private proj %% as FLUa. {now_using, _, EpochNum_a} = ?MGR:trigger_react_to_env(Mb), {ok, P2pb} = ?FLU_PC:read_latest_projection(Proxy_b, private), P2 = P2pb#projection_v1{dbg2=[]}, %% Pspam = machi_projection:update_checksum( %% P1b#projection_v1{epoch_number=?SPAM_PROJ_EPOCH, %% dbg=[hello_spam]}), %% ok = ?FLU_PC:write_projection(Proxy_b, public, Pspam), ok after exit(SupPid, normal), [ok = ?FLU_PC:quit(X) || X <- Proxies], ok = machi_partition_simulator:stop() end. unanimous_report_test() -> TcpPort = 63877, FluInfo = [{a,TcpPort+0,"./data.a"}, {b,TcpPort+1,"./data.b"}], P_s = [#p_srvr{name=Name, address="localhost", port=Port} || {Name,Port,_Dir} <- FluInfo], MembersDict = machi_projection:make_members_dict(P_s), E5 = 5, UPI5 = [a,b], Rep5 = [], Report5 = [UPI5], P5 = machi_projection:new(E5, a, MembersDict, [], UPI5, Rep5, []), {ok_disjoint, Report5} = unanimous_report2([{a, P5}, {b, P5}]), {ok_disjoint, Report5} = unanimous_report2([{a, not_in_this_epoch}, {b, P5}]), {ok_disjoint, Report5} = unanimous_report2([{a, P5}, {b, not_in_this_epoch}]), UPI5_b = [a], Rep5_b = [], P5_b = machi_projection:new(E5, b, MembersDict, [b], UPI5_b, Rep5_b, []), {bummer_NOT_DISJOINT, _} = unanimous_report2([{a, P5}, {b, P5_b}]), UPI5_c = [b], Rep5_c = [a], P5_c = machi_projection:new(E5, b, MembersDict, [], UPI5_c, Rep5_c, []), {bummer_NOT_DISJOINT, _} = unanimous_report2([{a, P5}, {b, P5_c}]), P_s3 = [#p_srvr{name=Name, address="localhost", port=Port} || {Name,Port,_Dir} <- FluInfo ++ [{c,TcpPort+0,"./data.c"}]], MembersDict3 = machi_projection:make_members_dict(P_s3), UPI5_d = [c], Rep5_d = [a], Report5d = [UPI5, UPI5_d], P5_d = machi_projection:new(E5, b, MembersDict3, [b], UPI5_d, Rep5_d, []), {ok_disjoint, Report5d} = unanimous_report2([{a, P5}, {b, P5_d}]), UPI5_e = [b], Rep5_e = [c], Report5be = [UPI5_b, UPI5_e], P5_e = machi_projection:new(E5, b, MembersDict3, [a], UPI5_e, Rep5_e, []), {bummer_NOT_DISJOINT, _} = unanimous_report2([{a, P5}, {b, P5_e}]), {ok_disjoint, Report5be} = unanimous_report2([{a, P5_b}, {b, P5_e}]), ok. -endif. % !PULSE -endif. % TEST