func TestRaftUnreachableNode(t *testing.T) {
t.Parallel()
nodes := make(map[uint64]*raftutils.TestNode)
var clockSource *fakeclock.FakeClock
nodes[1], clockSource = raftutils.NewInitNode(t, tc, nil)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
// Add a new node
nodes[2] = raftutils.NewNode(t, clockSource, tc, raft.NodeOptions{JoinAddr: nodes[1].Address})
err := nodes[2].JoinAndStart(ctx)
require.NoError(t, err, "can't join cluster")
go nodes[2].Run(ctx)
// Stop the Raft server of second node on purpose after joining
nodes[2].Server.Stop()
nodes[2].Listener.Close()
raftutils.AdvanceTicks(clockSource, 5)
time.Sleep(100 * time.Millisecond)
wrappedListener := raftutils.RecycleWrappedListener(nodes[2].Listener)
securityConfig := nodes[2].SecurityConfig
serverOpts := []grpc.ServerOption{grpc.Creds(securityConfig.ServerTLSCreds)}
s := grpc.NewServer(serverOpts...)
nodes[2].Server = s
raft.Register(s, nodes[2].Node)
go func() {
// After stopping, we should receive an error from Serve
assert.Error(t, s.Serve(wrappedListener))
}()
raftutils.WaitForCluster(t, clockSource, nodes)
defer raftutils.TeardownCluster(t, nodes)
// Propose a value
value, err := raftutils.ProposeValue(t, nodes[1], DefaultProposalTime)
assert.NoError(t, err, "failed to propose value")
// All nodes should have the value in the physical store
raftutils.CheckValue(t, clockSource, nodes[1], value)
raftutils.CheckValue(t, clockSource, nodes[2], value)
}
func TestRaftJoinWithIncorrectAddress(t *testing.T) {
t.Parallel()
nodes := make(map[uint64]*raftutils.TestNode)
var clockSource *fakeclock.FakeClock
nodes[1], clockSource = raftutils.NewInitNode(t, tc, nil)
// Try joining a new node with an incorrect address
n := raftutils.NewNode(t, clockSource, tc, raft.NewNodeOptions{JoinAddr: nodes[1].Address, Addr: "1.2.3.4:1234"})
err := n.JoinAndStart()
assert.NotNil(t, err)
assert.Equal(t, grpc.ErrorDesc(err), raft.ErrHealthCheckFailure.Error())
// Check if first node still has only itself registered in the memberlist
assert.Equal(t, len(nodes[1].GetMemberlist()), 1)
}
func TestRaftJoinWithIncorrectAddress(t *testing.T) {
t.Parallel()
nodes := make(map[uint64]*raftutils.TestNode)
var clockSource *fakeclock.FakeClock
nodes[1], clockSource = raftutils.NewInitNode(t, tc, nil)
defer raftutils.ShutdownNode(nodes[1])
// Try joining a new node with an incorrect address
n := raftutils.NewNode(t, clockSource, tc, raft.NodeOptions{JoinAddr: nodes[1].Address, Addr: "1.2.3.4:1234"})
defer raftutils.CleanupNonRunningNode(n)
err := n.JoinAndStart(context.Background())
assert.NotNil(t, err)
assert.Contains(t, grpc.ErrorDesc(err), "could not connect to prospective new cluster member using its advertised address")
// Check if first node still has only itself registered in the memberlist
assert.Len(t, nodes[1].GetMemberlist(), 1)
}
func TestRaftUnreachableNode(t *testing.T) {
t.Parallel()
nodes := make(map[uint64]*raftutils.TestNode)
var clockSource *fakeclock.FakeClock
nodes[1], clockSource = raftutils.NewInitNode(t, tc, nil)
ctx := context.Background()
// Add a new node, but don't start its server yet
n := raftutils.NewNode(t, clockSource, tc, raft.NewNodeOptions{JoinAddr: nodes[1].Address})
go n.Run(ctx)
raftutils.AdvanceTicks(clockSource, 5)
time.Sleep(100 * time.Millisecond)
raft.Register(n.Server, n.Node)
// Now start the new node's server
go func() {
// After stopping, we should receive an error from Serve
assert.Error(t, n.Server.Serve(n.Listener))
}()
nodes[2] = n
raftutils.WaitForCluster(t, clockSource, nodes)
defer raftutils.TeardownCluster(t, nodes)
// Propose a value
value, err := raftutils.ProposeValue(t, nodes[1])
assert.NoError(t, err, "failed to propose value")
// All nodes should have the value in the physical store
raftutils.CheckValue(t, clockSource, nodes[1], value)
raftutils.CheckValue(t, clockSource, nodes[2], value)
}