riak_test/tests/repl_aae_fullsync_util.erl
Christopher Meiklejohn 0964abb5e3 Add an exhaustive test for AAE based replication.
Ensure that AAE replication is tested using all possible failure cases
when dealing with the riak_kv_index_hashtrees and failed connections.

First, use intercepts on riak_kv_vnode and riak_kv_index_hashtree to
ensure that we simulate errors on a per node basis, starting with the
source cluster and moving to the sink.  Simulate ownership transfers,
locked and incomplete hashtrees.  Verify partitions generate the correct
error count, after using a bounded set of retries, and finally remove
all intercepts and verify that the fullsync completes and all keys have
been migrated between the two clusters.
2014-01-02 16:27:43 -05:00

85 lines
3.2 KiB
Erlang

%% @doc
%% This module implements a riak_test to exercise the Active Anti-Entropy Fullsync replication.
%% It sets up two clusters and starts a single fullsync worker for a single AAE tree.
-module(repl_aae_fullsync_util).
-export([make_clusters/3,
prepare_cluster_data/5]).
-include_lib("eunit/include/eunit.hrl").
-import(rt, [deploy_nodes/2,
join/2,
log_to_nodes/2,
log_to_nodes/3,
wait_until_nodes_ready/1,
wait_until_no_pending_changes/1]).
make_clusters(NumNodesWanted, ClusterSize, Conf) ->
NumNodes = rt_config:get(num_nodes, NumNodesWanted),
ClusterASize = rt_config:get(cluster_a_size, ClusterSize),
lager:info("Deploy ~p nodes", [NumNodes]),
Nodes = deploy_nodes(NumNodes, Conf),
{ANodes, BNodes} = lists:split(ClusterASize, Nodes),
lager:info("ANodes: ~p", [ANodes]),
lager:info("BNodes: ~p", [BNodes]),
lager:info("Build cluster A"),
repl_util:make_cluster(ANodes),
lager:info("Build cluster B"),
repl_util:make_cluster(BNodes),
{ANodes, BNodes}.
prepare_cluster_data(TestBucket, NumKeysAOnly, _NumKeysBoth, [AFirst|_] = ANodes, [BFirst|_] = BNodes) ->
AllNodes = ANodes ++ BNodes,
log_to_nodes(AllNodes, "Starting AAE Fullsync test"),
%% clusters are not connected, connect them
repl_util:name_cluster(AFirst, "A"),
repl_util:name_cluster(BFirst, "B"),
%% we'll need to wait for cluster names before continuing
rt:wait_until_ring_converged(ANodes),
rt:wait_until_ring_converged(BNodes),
lager:info("waiting for leader to converge on cluster A"),
?assertEqual(ok, repl_util:wait_until_leader_converge(ANodes)),
lager:info("waiting for leader to converge on cluster B"),
?assertEqual(ok, repl_util:wait_until_leader_converge(BNodes)),
%% get the leader for the first cluster
LeaderA = rpc:call(AFirst, riak_core_cluster_mgr, get_leader, []),
{ok, {_IP, Port}} = rpc:call(BFirst, application, get_env,
[riak_core, cluster_mgr]),
lager:info("connect cluster A:~p to B on port ~p", [LeaderA, Port]),
repl_util:connect_cluster(LeaderA, "127.0.0.1", Port),
?assertEqual(ok, repl_util:wait_for_connection(LeaderA, "B")),
%% make sure we are connected
lager:info("Wait for cluster connection A:~p -> B:~p:~p", [LeaderA, BFirst, Port]),
?assertEqual(ok, repl_util:wait_for_connection(LeaderA, "B")),
%%---------------------------------------------------
%% TEST: write data, NOT replicated by RT or fullsync
%% keys: 1..NumKeysAOnly
%%---------------------------------------------------
lager:info("Writing ~p keys to A(~p)", [NumKeysAOnly, AFirst]),
?assertEqual([], repl_util:do_write(AFirst, 1, NumKeysAOnly, TestBucket, 1)),
%% check that the keys we wrote initially aren't replicated yet, because
%% we've disabled fullsync_on_connect
lager:info("Check keys written before repl was connected are not present"),
Res2 = rt:systest_read(BFirst, 1, NumKeysAOnly, TestBucket, 1),
?assertEqual(NumKeysAOnly, length(Res2)),
%% wait for the AAE trees to be built so that we don't get a not_built error
repl_util:wait_until_aae_trees_built(ANodes),
repl_util:wait_until_aae_trees_built(BNodes),
ok.