riak_test/tests/replication_upgrade.erl
2012-11-16 14:49:28 -05:00

75 lines
2.3 KiB
Erlang

-module(replication_upgrade).
-compile(export_all).
-include_lib("eunit/include/eunit.hrl").
confirm() ->
FromVersion = replication:get_os_env("REPL_FROM", "1.1.4"),
ToVersion = replication:get_os_env("REPL_TO", "current"),
lager:info("Doing rolling replication upgrade test from ~p to ~p",
[FromVersion, ToVersion]),
NumNodes = 6,
UpgradeOrder = replication:get_os_env("UPGRADE_ORDER", "forwards"),
Backend = list_to_atom(replication:get_os_env("RIAK_BACKEND",
"riak_kv_bitcask_backend")),
lager:info("Deploy ~p nodes using ~p backend", [NumNodes, Backend]),
Conf = [
{riak_kv,
[
{storage_backend, Backend}
]},
{riak_repl,
[
{fullsync_on_connect, false},
{fullsync_interval, disabled}
]}
],
NodeConfig = [{FromVersion, Conf} || _ <- lists:seq(1, NumNodes)],
Nodes = rt:deploy_nodes(NodeConfig),
NodeUpgrades = case UpgradeOrder of
"forwards" ->
Nodes;
"backwards" ->
lists:reverse(Nodes);
"alternate" ->
%% eg 1, 4, 2, 5, 3, 6
lists:flatten(lists:foldl(fun(E, [A,B,C]) -> [B, C, A ++ [E]] end,
[[],[],[]], Nodes));
"random" ->
%% halfass randomization
lists:sort(fun(_, _) -> random:uniform(100) < 50 end, Nodes);
Other ->
lager:error("Invalid upgrade ordering ~p", [Other]),
erlang:exit()
end,
lager:info("Upgrading nodes in order: ~p", [NodeUpgrades]),
ClusterASize = list_to_integer(replication:get_os_env("CLUSTER_A_SIZE", "3")),
{ANodes, BNodes} = lists:split(ClusterASize, Nodes),
lager:info("ANodes: ~p", [ANodes]),
lager:info("BNodes: ~p", [BNodes]),
lager:info("Build cluster A"),
replication:make_cluster(ANodes),
lager:info("Build cluster B"),
replication:make_cluster(BNodes),
%% initial replication run, homogeneous cluster
replication:replication(ANodes, BNodes, false),
%% upgrade the nodes, one at a time
lists:foreach(fun(Node) ->
rtdev:upgrade(Node, ToVersion),
rt:wait_until_pingable(Node),
timer:sleep(1000),
replication:replication(ANodes, BNodes, true)
end, NodeUpgrades).