Round 1 of cleanup
This commit is contained in:
Scott Lystig Fritchie
parent
000d687588
commit
67019493aa
3 changed files with 122 additions and 180 deletions
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@ -41,7 +41,7 @@ func, and pattern match Erlang style in that func.
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** DONE Add major comment sections to the CR-impl client
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** DONE Simple basho_bench driver, put some unscientific chalk on the benchtop
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** TODO Create parallel PULSE test for basic API plus chain manager repair
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** TODO Add client-side vs. server-side checksum type, expand client API?
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** DONE Add client-side vs. server-side checksum type, expand client API?
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** TODO Add gproc and get rid of registered name rendezvous
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*** TODO Fixes the atom table leak
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*** TODO Fixes the problem of having active sequencer for the same prefix
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@ -199,16 +199,9 @@ convergence_demo_testfun(NumFLUs) ->
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S_min, S_max_rand,
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M_name, All_list),
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_ = ?MGR:test_react_to_env(MMM),
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%% if M_name == d ->
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%% [_ = ?MGR:test_react_to_env(MMM) ||
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%% _ <- lists:seq(1,3)],
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%% superunfair;
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%% true ->
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%% ok
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%% end,
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%% Be more unfair by not
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%% sleeping here.
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%% timer:sleep(S_max - Elapsed),
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% timer:sleep(S_max - Elapsed),
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Elapsed
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end || _ <- lists:seq(1, Iters)],
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Parent ! done
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@ -221,100 +214,26 @@ convergence_demo_testfun(NumFLUs) ->
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end || _ <- Pids]
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end,
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_XandYs1 = [[{X,Y}] || X <- All_list, Y <- All_list, X /= Y],
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_XandYs2 = [[{X,Y}, {A,B}] || X <- All_list, Y <- All_list, X /= Y,
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A <- All_list, B <- All_list, A /= B,
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X /= A],
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_XandYs3 = [[{X,Y}, {A,B}, {C,D}] || X <- All_list, Y <- All_list, X /= Y,
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A <- All_list, B <- All_list, A /= B,
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C <- All_list, D <- All_list, C /= D,
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X /= A, X /= C, A /= C],
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%% AllPartitionCombinations = _XandYs1 ++ _XandYs2,
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%% AllPartitionCombinations = _XandYs3,
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AllPartitionCombinations = _XandYs1 ++ _XandYs2 ++ _XandYs3,
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?D({?LINE, length(AllPartitionCombinations)}),
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machi_partition_simulator:reset_thresholds(10, 50),
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io:format(user, "\nLet loose the dogs of war!\n", []),
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DoIt(30, 0, 0),
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[begin
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%% io:format(user, "\nSET partitions = ~w.\n", [ [] ]),machi_partition_simulator:no_partitions(),
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%% [DoIt(50, 10, 100) || _ <- [1,2,3]],
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io:format(user, "\nLet loose the dogs of war!\n", []),
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DoIt(30, 0, 0),
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io:format(user, "\nSET partitions = ~w.\n", [ [] ]),machi_partition_simulator:no_partitions(),
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[DoIt(10, 10, 100) || _ <- [1]],
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%% machi_partition_simulator:reset_thresholds(10, 50),
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%% io:format(user, "\nLet loose the dogs of war!\n", []),
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%% DoIt(30, 0, 0),
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machi_partition_simulator:always_these_partitions(Partition),
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io:format(user, "\nSET partitions = ~w.\n", [Partition]),
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[DoIt(50, 10, 100) || _ <- [1,2,3,4] ],
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_PPP =
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[begin
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{ok, PPPallPubs} = ?FLU_PC:list_all_projections(FLU,public),
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[begin
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{ok, Pr} = todo_why_does_this_crash_sometimes(
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FLUName, FLU, PPPepoch),
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{Pr#projection_v1.epoch_number, FLUName, Pr}
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end || PPPepoch <- PPPallPubs]
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end || {FLUName, FLU} <- Namez],
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%% io:format(user, "PPP ~p\n", [lists:sort(lists:append(_PPP))]),
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[DoIt(40, 10, 50) || _ <- [1,2,3,4,5,6] ],
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%%%%%%%% {stable,true} = {stable,private_projections_are_stable(Namez, DoIt)},
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{hosed_ok,true} = {hosed_ok,all_hosed_lists_are_identical(Namez, Partition)},
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io:format(user, "\nSweet, all_hosed are identical-or-islands-inconclusive.\n", []),
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timer:sleep(1000),
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{stable,true} = {stable,private_projections_are_stable(Namez, DoIt)},
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io:format(user, "\nSweet, private projections are stable\n", []),
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timer:sleep(1250),
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ok
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%% end || Partition <- AllPartitionCombinations
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%% end || Partition <- [ [{a,b},{b,d},{c,b}],
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%% [{a,b},{b,d},{c,b}, {a,b},{b,a},{a,c},{c,a},{a,d},{d,a}],
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%% %% [{a,b},{b,d},{c,b}, {b,a},{a,b},{b,c},{c,b},{b,d},{d,b}],
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%% [{a,b},{b,d},{c,b}, {c,a},{a,c},{c,b},{b,c},{c,d},{d,c}],
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%% [{a,b},{b,d},{c,b}, {d,a},{a,d},{d,b},{b,d},{d,c},{c,d}] ]
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%% end || Partition <- [ [{a,b}, {b,c}],
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%% [{a,b}, {c,b}] ]
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%% end || Partition <- [ [{a,b}, {b,c}] ] %% hosed-not-equal @ 3 FLUs
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%% end || Partition <- [ [{b,d}] ]
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%% end || Partition <- [ [{a,b}, {b,a}] ]
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%% end || Partition <- [ [{a,b}, {b,a}, {a,c},{c,a}] ]
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end || Partition <- [ [{a,b}],
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[{b,a}] ]
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%% end || Partition <- [ [{a,b}, {c,b}],
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%% [{a,b}, {b,c}] ]
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%% end || Partition <- [ [{a,b}, {b,c}, {c,d}],
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%% [{a,b}, {b,c},{b,d}, {c,d}],
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%% [{b,a}, {b,c}, {c,d}],
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%% [{a,b}, {c,b}, {c,d}],
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%% [{a,b}, {b,c}, {d,c}] ]
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%% end || Partition <- [ [{a,b}, {b,c}, {c,d}, {d,e}],
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%% [{b,a}, {b,c}, {c,d}, {d,e}],
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%% [{a,b}, {c,b}, {c,d}, {d,e}],
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%% [{a,b}, {b,c}, {d,c}, {d,e}],
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%% [{a,b}, {b,c}, {c,d}, {e,d}] ]
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%% end || Partition <- [ [{c,a}] ]
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%% end || Partition <- [ [{c,a}], [{c,b}, {a, b}] ]
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%% end || Partition <- [ [{a,b},{b,a}, {a,c},{c,a}, {a,d},{d,a}],
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%% [{a,b},{b,a}, {a,c},{c,a}, {a,d},{d,a}, {b,c}],
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%% [{a,b},{b,a}, {a,c},{c,a}, {a,d},{d,a}, {c,d}] ]
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%% end || Partition <- [ [{a,b}],
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%% [{a,b}, {a,b},{b,a},{a,c},{c,a},{a,d},{d,a}],
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%% [{a,b}, {b,a},{a,b},{b,c},{c,b},{b,d},{d,b}],
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%% [{a,b}, {c,a},{a,c},{c,b},{b,c},{c,d},{d,c}],
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%% [{a,b}, {d,a},{a,d},{d,b},{b,d},{d,c},{c,d}] ]
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end || Partition <- make_partition_list(All_list)
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],
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%% exit(end_experiment),
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io:format(user, "\nSET partitions = []\n", []),
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io:format(user, "We should see convergence to 1 correct chain.\n", []),
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machi_partition_simulator:no_partitions(),
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[DoIt(50, 10, 100) || _ <- [1]],
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io:format(user, "Sweet, finishing early\n", []), exit(yoyoyo_testing_hack_finishing_early),
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%% WARNING: In asymmetric partitions, private_projections_are_stable()
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%% will never be true; code beyond this point on the -exp3
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%% branch is bit-rotted, sorry!
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[DoIt(50, 10, 50) || _ <- [1]],
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true = private_projections_are_stable(Namez, DoIt),
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io:format(user, "~s\n", [os:cmd("date")]),
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@ -333,6 +252,17 @@ convergence_demo_testfun(NumFLUs) ->
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%% Given the report, we flip it around so that we observe the
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%% sets of chain transitions relative to each FLU.
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%% R_Chains's type is: list({RelativeFlu, list({Epoch, UPI, Repairing})})
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%% For example:
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%% [{a,[{3,[a],[b,c]},
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%% {7,[a,b],[c]},
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%% {14,[a,b,c],[]},
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%% {83,[a],[]},
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%% {164,[c],[a,b]},
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%% {218,[a],[]},
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%% {226,[a],[b,c]},
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%% {228,[a],[b,c]},
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%% ....
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R_Chains = [machi_chain_manager1_test:extract_chains_relative_to_flu(
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FLU, Report) || FLU <- All_list],
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%% ?D(R_Chains),
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@ -366,6 +296,71 @@ convergence_demo_testfun(NumFLUs) ->
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ok = machi_partition_simulator:stop()
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end.
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%% Many of the static partition lists below have been problematic at one
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%% time or another.....
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%%
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%% Uncomment *one* of the following make_partition_list() bodies.
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make_partition_list(All_list) ->
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_X_Ys1 = [[{X,Y}] || X <- All_list, Y <- All_list, X /= Y],
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_X_Ys2 = [[{X,Y}, {A,B}] || X <- All_list, Y <- All_list, X /= Y,
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A <- All_list, B <- All_list, A /= B,
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X /= A],
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_X_Ys3 = [[{X,Y}, {A,B}, {C,D}] || X <- All_list, Y <- All_list, X /= Y,
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A <- All_list, B <- All_list, A /= B,
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C <- All_list, D <- All_list, C /= D,
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X /= A, X /= C, A /= C],
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%% _X_Ys1 ++ _X_Ys2.
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_X_Ys3.
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%% _X_Ys1 ++ _X_Ys2 ++ _X_Ys3.
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%% [ [{a,b},{b,d},{c,b}],
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%% [{a,b},{b,d},{c,b}, {a,b},{b,a},{a,c},{c,a},{a,d},{d,a}],
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%% %% [{a,b},{b,d},{c,b}, {b,a},{a,b},{b,c},{c,b},{b,d},{d,b}],
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%% [{a,b},{b,d},{c,b}, {c,a},{a,c},{c,b},{b,c},{c,d},{d,c}],
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%% [{a,b},{b,d},{c,b}, {d,a},{a,d},{d,b},{b,d},{d,c},{c,d}] ].
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%% [ [{a,b}, {b,c}],
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%% [{a,b}, {c,b}] ].
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%% [{a,b}, {b,c}] ]. %% hosed-not-equal @ 3 FLUs
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%% [{b,d}] ].
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%% [ [{a,b}, {b,a}] ].
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%% [ [{a,b},{b,c},{c,a}],
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%% [{a,b}, {b,a}, {a,c},{c,a}] ].
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%% [{a,b}, {c,b}],
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%% [{a,b}, {b,c}] ].
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%% [ [{a,b}, {b,c}, {c,d}],
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%% [{a,b}, {b,c},{b,d}, {c,d}],
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%% [{b,a}, {b,c}, {c,d}],
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%% [{a,b}, {c,b}, {c,d}],
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%% [{a,b}, {b,c}, {d,c}] ].
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%% [ [{a,b}, {b,c}, {c,d}, {d,e}],
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%% [{b,a}, {b,c}, {c,d}, {d,e}],
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%% [{a,b}, {c,b}, {c,d}, {d,e}],
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%% [{a,b}, {b,c}, {d,c}, {d,e}],
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%% [{a,b}, {b,c}, {c,d}, {e,d}] ].
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%% [ [{c,a}] ].
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%% [ [{c,a}], [{c,b}, {a, b}] ].
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%% [ [{a,b},{b,a}, {a,c},{c,a}, {a,d},{d,a}],
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%% [{a,b},{b,a}, {a,c},{c,a}, {a,d},{d,a}, {b,c}],
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%% [{a,b},{b,a}, {a,c},{c,a}, {a,d},{d,a}, {c,d}] ].
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%% [ [{a,b}],
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%% [{a,b}, {a,b},{b,a},{a,c},{c,a},{a,d},{d,a}],
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%% [{a,b}, {b,a},{a,b},{b,c},{c,b},{b,d},{d,b}],
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%% [{a,b}, {c,a},{a,c},{c,b},{b,c},{c,d},{d,c}],
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%% [{a,b}, {d,a},{a,d},{d,b},{b,d},{d,c},{c,d}] ].
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todo_why_does_this_crash_sometimes(FLUName, FLU, PPPepoch) ->
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try
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{ok, _}=Res = ?FLU_PC:read_projection(FLU, public, PPPepoch),
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@ -374,75 +369,26 @@ todo_why_does_this_crash_sometimes(FLUName, FLU, PPPepoch) ->
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io:format(user, "QQQ Whoa, it crashed this time for ~p at epoch ~p\n",
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[FLUName, PPPepoch]),
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timer:sleep(1000),
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exit(still_a_problem),
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?FLU_PC:read_projection(FLU, public, PPPepoch)
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end.
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private_projections_are_stable(Namez, PollFunc) ->
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Private1 = [?FLU_PC:get_latest_epochid(FLU, private) ||
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{_Name, FLU} <- Namez],
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Private1 = [get_latest_inner_proj_summ(FLU) || {_Name, FLU} <- Namez],
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PollFunc(5, 1, 10),
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Private2 = [?FLU_PC:get_latest_epochid(FLU, private) ||
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{_Name, FLU} <- Namez],
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Private2 = [get_latest_inner_proj_summ(FLU) || {_Name, FLU} <- Namez],
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if Private1 == Private2 ->
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ok;
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true ->
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io:format(user, "Oops: Private1: ~p\n", [Private1]),
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io:format(user, "Oops: Private2: ~p\n", [Private2])
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end,
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true = (Private1 == Private2).
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all_hosed_lists_are_identical(Namez, Partition0) ->
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Partition = lists:usort(Partition0),
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Ps = [element(2,?FLU_PC:read_latest_projection(FLU, private)) ||
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{_Name, FLU} <- Namez],
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UniqueAllHoseds = lists:usort([machi_chain_manager1:get_all_hosed(P) ||
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{ok, P} <- Ps]),
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Members = [M || {M, _Pid} <- Namez],
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Islands = machi_partition_simulator:partitions2num_islands(
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Members, Partition),
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%% io:format(user, "all_hosed_lists_are_identical:\n", []),
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%% io:format(user, " Uniques = ~p Islands ~p\n Partition ~p\n",
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%% [Uniques, Islands, Partition]),
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case length(UniqueAllHoseds) of
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1 ->
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true;
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%% TODO: With the addition of the digraph stuff below, the clause
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%% below probably isn't necessary anymore, since the
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%% digraph calculation should catch complete partition islands?
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_ when Islands == 'many' ->
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%% There are at least two partitions, so yes, it's quite
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%% possible that the all_hosed lists may differ.
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%% TODO Fix this up to be smarter about fully-isolated
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%% islands of partition.
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true;
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_ ->
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DG = digraph:new(),
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Connection = machi_partition_simulator:partition2connection(
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Members, Partition),
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[digraph:add_vertex(DG, X) || X <- Members],
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[digraph:add_edge(DG, X, Y) || {X,Y} <- Connection],
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Any =
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lists:any(
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fun(X) ->
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NotX = Members -- [X],
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lists:any(
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fun(Y) ->
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%% There must be a shortest path of length
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%% two in both directions, otherwise
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%% the read projection call will fail.
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%% And it's that failure that we're
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%% interested in here.
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XtoY = digraph:get_short_path(DG, X, Y),
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YtoX = digraph:get_short_path(DG, Y, X),
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(XtoY == false orelse
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length(XtoY) > 2)
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orelse
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(YtoX == false orelse
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length(YtoX) > 2)
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end, NotX)
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end, Members),
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digraph:delete(DG),
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if Any == true ->
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%% There's a missing path of length 2 between some
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%% two FLUs, so yes, there's going to be
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%% non-identical all_hosed lists.
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true;
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true ->
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false % There's no excuse, buddy
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end
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end.
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get_latest_inner_proj_summ(FLU) ->
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{ok, Proj} = ?FLU_PC:read_latest_projection(FLU, private),
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#projection_v1{epoch_number=E, upi=UPI, repairing=Repairing, down=Down} =
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machi_chain_manager1:inner_projection_or_self(Proj),
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{E, UPI, Repairing, Down}.
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-endif. % TEST
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@ -45,6 +45,17 @@
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-include_lib("eunit/include/eunit.hrl").
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-compile(export_all).
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%% Example:
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%% [{1,{ok_disjoint,[{agreed_membership,{[a],[b,c]}}]}},
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%% {3,{ok_disjoint,[{agreed_membership,{[a],[b,c]}}]}},
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%% {8,
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%% {ok_disjoint,[{not_agreed,{[a],[b,c]},
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%% [{b,not_in_this_epoch},
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%% <<65,159,66,113,232,15,156,244,197,
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%% 210,39,82,229,84,192,19,27,45,161,38>>]}]}},
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%% {10,{ok_disjoint,[{agreed_membership,{[c],[]}}]}},
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%% ...]
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unanimous_report(Namez) ->
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UniquePrivateEs =
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lists:usort(lists:flatten(
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@ -53,10 +64,13 @@ unanimous_report(Namez) ->
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[unanimous_report(Epoch, Namez) || Epoch <- UniquePrivateEs].
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unanimous_report(Epoch, Namez) ->
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Projs = [{FLUName, case ?FLU_PC:read_projection(FLU, private, Epoch) of
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{ok, T} -> T;
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_Else -> not_in_this_epoch
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end} || {FLUName, FLU} <- Namez],
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Projs = [{FLUName,
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case ?FLU_PC:read_projection(FLU, private, Epoch) of
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{ok, T} ->
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machi_chain_manager1:inner_projection_or_self(T);
|
||||
_Else ->
|
||||
{FLUName, not_in_this_epoch}
|
||||
end} || {FLUName, FLU} <- Namez],
|
||||
UPI_R_Sums = [{Proj#projection_v1.upi, Proj#projection_v1.repairing,
|
||||
Proj#projection_v1.epoch_csum} ||
|
||||
{_FLUname, Proj} <- Projs,
|
||||
|
|
@ -71,31 +85,12 @@ unanimous_report(Epoch, Namez) ->
|
|||
%% that all FLUs are in agreement.
|
||||
{UPI, Repairing, _CSum} =
|
||||
lists:keyfind(UPI, 1, UPI_R_Sums),
|
||||
%% TODO: make certain that this subtlety doesn't get
|
||||
%% last in later implementations.
|
||||
|
||||
%% So, this is a bit of a tricky thing. If we're at
|
||||
%% upi=[c] and repairing=[a,b], then the transition
|
||||
%% (eventually!) to upi=[c,a] does not currently depend
|
||||
%% on b being an active participant in the repair.
|
||||
%%
|
||||
%% Yes, b's state is very important for making certain
|
||||
%% that all repair operations succeed both to a & b.
|
||||
%% However, in this simulation, we only consider that
|
||||
%% the head(Repairing) is sane. Therefore, we use only
|
||||
%% the "HeadOfRepairing" in our considerations here.
|
||||
HeadOfRepairing = case Repairing of
|
||||
[H_Rep|_] ->
|
||||
[H_Rep];
|
||||
_ ->
|
||||
[]
|
||||
end,
|
||||
Tmp = [{FLU, case proplists:get_value(FLU, Projs) of
|
||||
P when is_record(P, projection_v1) ->
|
||||
P#projection_v1.epoch_csum;
|
||||
Else ->
|
||||
Else
|
||||
end} || FLU <- UPI ++ HeadOfRepairing],
|
||||
end} || FLU <- UPI ++ Repairing],
|
||||
case lists:usort([CSum || {_FLU, CSum} <- Tmp]) of
|
||||
[_] ->
|
||||
{agreed_membership, {UPI, Repairing}};
|
||||
|
|
@ -103,7 +98,7 @@ unanimous_report(Epoch, Namez) ->
|
|||
{not_agreed, {UPI, Repairing}, Else2}
|
||||
end;
|
||||
_Else ->
|
||||
{UPI, not_unique, Epoch, _Else}
|
||||
exit({UPI, not_unique, Epoch, _Else})
|
||||
end
|
||||
end || UPI <- UniqueUPIs],
|
||||
AgreedResUPI_Rs = [UPI++Repairing ||
|
||||
|
|
@ -128,8 +123,9 @@ extract_chains_relative_to_flu(FLU, Report) ->
|
|||
lists:member(FLU, UPI) orelse lists:member(FLU, Repairing)]}.
|
||||
|
||||
chain_to_projection(MyName, Epoch, UPI_list, Repairing_list, All_list) ->
|
||||
exit({todo_broken_fixme,?MODULE,?LINE}),
|
||||
machi_projection:new(Epoch, MyName, All_list,
|
||||
MemberDict = orddict:from_list([{FLU, #p_srvr{name=FLU}} ||
|
||||
FLU <- All_list]),
|
||||
machi_projection:new(Epoch, MyName, MemberDict,
|
||||
All_list -- (UPI_list ++ Repairing_list),
|
||||
UPI_list, Repairing_list, []).
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue