riak_test/tests/vnode_util.erl
Joseph Blomstedt ab5a4a6e4a Add additional ensemble tests to test peer syncing
Add ensemble_basic4, ensemble_sync, and ensemble_interleave tests.

ensemble_sync tests the new AAE-based peer syncing logic. The test
checks various scenarios with different levels of data corruption.

ensemble_interleave tests a specific scenario where two peers become
corrupted one after the other. This tests the scenario where the
second peer becomes untrusted while the first peer may be syncing
with it.
2014-04-10 19:07:02 -07:00

81 lines
2.9 KiB
Erlang

%% -------------------------------------------------------------------
%%
%% Copyright (c) 2013-2014 Basho Technologies, Inc.
%%
%% 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(vnode_util).
-compile(export_all).
load(Nodes) ->
rt:load_modules_on_nodes([?MODULE], Nodes),
ok.
suspend_vnode(Node, Idx) ->
lager:info("Suspending vnode ~p/~p", [Node, Idx]),
Pid = rpc:call(Node, ?MODULE, remote_suspend_vnode, [Idx], infinity),
Pid.
remote_suspend_vnode(Idx) ->
Parent = self(),
Pid = spawn(fun() ->
{ok, Pid} = riak_core_vnode_manager:get_vnode_pid(Idx, riak_kv_vnode),
erlang:suspend_process(Pid, []),
Parent ! suspended,
receive resume ->
io:format("Resuming vnode :: ~p/~p~n", [node(), Idx]),
erlang:resume_process(Pid)
end
end),
receive suspended -> ok end,
Pid.
resume_vnode(Pid) ->
Pid ! resume.
kill_vnode({VIdx, VNode}) ->
lager:info("Killing vnode: ~p", [VIdx]),
Pid = vnode_pid(VNode, VIdx),
rpc:call(VNode, erlang, exit, [Pid, kill]),
ok = rt:wait_until(fun() ->
vnode_pid(VNode, VIdx) /= Pid
end).
vnode_pid(Node, Partition) ->
{ok, Pid} = rpc:call(Node, riak_core_vnode_manager, get_vnode_pid,
[Partition, riak_kv_vnode]),
Pid.
rebuild_vnode({VIdx, VNode}) ->
lager:info("Rebuild AAE tree: ~p", [VIdx]),
rebuild_aae_tree(VNode, VIdx).
rebuild_aae_tree(Node, Partition) ->
{ok, Pid} = rpc:call(Node, riak_kv_vnode, hashtree_pid, [Partition]),
Info = rpc:call(Node, riak_kv_entropy_info, compute_tree_info, []),
{_, Built} = lists:keyfind(Partition, 1, Info),
lager:info("Forcing rebuild of AAE tree for: ~b", [Partition]),
lager:info("Tree originally built at: ~p", [Built]),
rpc:call(Node, riak_kv_index_hashtree, clear, [Pid]),
ok = rt:wait_until(fun() ->
NewInfo = rpc:call(Node, riak_kv_entropy_info, compute_tree_info, []),
{_, NewBuilt} = lists:keyfind(Partition, 1, NewInfo),
NewBuilt > Built
end),
lager:info("Tree successfully rebuilt"),
ok.