619 lines
14 KiB
Go
619 lines
14 KiB
Go
package consul
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import (
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"errors"
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"fmt"
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"os"
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"testing"
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"time"
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"github.com/hashicorp/consul/consul/structs"
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"github.com/hashicorp/consul/testutil"
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"github.com/hashicorp/net-rpc-msgpackrpc"
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"github.com/hashicorp/serf/serf"
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)
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func TestLeader_RegisterMember(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, c1 := testClient(t)
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defer os.RemoveAll(dir2)
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defer c1.Shutdown()
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := c1.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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testutil.WaitForLeader(t, s1.RPC, "dc1")
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// Client should be registered
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state := s1.fsm.State()
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testutil.WaitForResult(func() (bool, error) {
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_, node, err := state.GetNode(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return node != nil, nil
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}, func(err error) {
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t.Fatalf("client not registered")
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})
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// Should have a check
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_, checks, err := state.NodeChecks(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if len(checks) != 1 {
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t.Fatalf("client missing check")
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}
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if checks[0].CheckID != SerfCheckID {
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t.Fatalf("bad check: %v", checks[0])
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}
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if checks[0].Name != SerfCheckName {
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t.Fatalf("bad check: %v", checks[0])
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}
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if checks[0].Status != structs.HealthPassing {
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t.Fatalf("bad check: %v", checks[0])
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}
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// Server should be registered
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_, node, err := state.GetNode(s1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if node == nil {
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t.Fatalf("server not registered")
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}
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// Service should be registered
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_, services, err := state.NodeServices(s1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if _, ok := services.Services["consul"]; !ok {
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t.Fatalf("consul service not registered: %v", services)
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}
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}
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func TestLeader_FailedMember(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, c1 := testClient(t)
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defer os.RemoveAll(dir2)
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defer c1.Shutdown()
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testutil.WaitForLeader(t, s1.RPC, "dc1")
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := c1.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Fail the member
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c1.Shutdown()
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// Should be registered
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state := s1.fsm.State()
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testutil.WaitForResult(func() (bool, error) {
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_, node, err := state.GetNode(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return node != nil, nil
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}, func(err error) {
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t.Fatalf("client not registered")
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})
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// Should have a check
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_, checks, err := state.NodeChecks(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if len(checks) != 1 {
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t.Fatalf("client missing check")
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}
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if checks[0].CheckID != SerfCheckID {
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t.Fatalf("bad check: %v", checks[0])
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}
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if checks[0].Name != SerfCheckName {
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t.Fatalf("bad check: %v", checks[0])
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}
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testutil.WaitForResult(func() (bool, error) {
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_, checks, err = state.NodeChecks(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return checks[0].Status == structs.HealthCritical, errors.New(checks[0].Status)
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}, func(err error) {
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t.Fatalf("check status is %v, should be critical", err)
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})
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}
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func TestLeader_LeftMember(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, c1 := testClient(t)
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defer os.RemoveAll(dir2)
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defer c1.Shutdown()
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := c1.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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state := s1.fsm.State()
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// Should be registered
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testutil.WaitForResult(func() (bool, error) {
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_, node, err := state.GetNode(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return node != nil, nil
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}, func(err error) {
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t.Fatalf("client should be registered")
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})
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// Node should leave
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c1.Leave()
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c1.Shutdown()
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// Should be deregistered
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testutil.WaitForResult(func() (bool, error) {
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_, node, err := state.GetNode(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return node == nil, nil
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}, func(err error) {
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t.Fatalf("client should not be registered")
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})
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}
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func TestLeader_ReapMember(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, c1 := testClient(t)
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defer os.RemoveAll(dir2)
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defer c1.Shutdown()
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := c1.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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state := s1.fsm.State()
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// Should be registered
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testutil.WaitForResult(func() (bool, error) {
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_, node, err := state.GetNode(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return node != nil, nil
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}, func(err error) {
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t.Fatalf("client should be registered")
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})
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// Simulate a node reaping
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mems := s1.LANMembers()
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var c1mem serf.Member
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for _, m := range mems {
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if m.Name == c1.config.NodeName {
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c1mem = m
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c1mem.Status = StatusReap
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break
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}
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}
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s1.reconcileCh <- c1mem
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// Should be deregistered
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testutil.WaitForResult(func() (bool, error) {
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_, node, err := state.GetNode(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return node == nil, nil
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}, func(err error) {
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t.Fatalf("client should not be registered")
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})
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}
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func TestLeader_Reconcile_ReapMember(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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testutil.WaitForLeader(t, s1.RPC, "dc1")
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// Register a non-existing member
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dead := structs.RegisterRequest{
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Datacenter: s1.config.Datacenter,
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Node: "no-longer-around",
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Address: "127.1.1.1",
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Check: &structs.HealthCheck{
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Node: "no-longer-around",
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CheckID: SerfCheckID,
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Name: SerfCheckName,
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Status: structs.HealthCritical,
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},
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}
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var out struct{}
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if err := s1.RPC("Catalog.Register", &dead, &out); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Force a reconciliation
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if err := s1.reconcile(); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Node should be gone
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state := s1.fsm.State()
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_, node, err := state.GetNode("no-longer-around")
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if node != nil {
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t.Fatalf("client registered")
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}
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}
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func TestLeader_Reconcile(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, c1 := testClient(t)
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defer os.RemoveAll(dir2)
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defer c1.Shutdown()
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// Join before we have a leader, this should cause a reconcile!
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := c1.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Should not be registered
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state := s1.fsm.State()
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_, node, err := state.GetNode(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if node != nil {
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t.Fatalf("client registered")
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}
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// Should be registered
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testutil.WaitForResult(func() (bool, error) {
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_, node, err = state.GetNode(c1.config.NodeName)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return node != nil, nil
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}, func(err error) {
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t.Fatalf("client should be registered")
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})
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}
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func TestLeader_LeftServer(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, s2 := testServerDCBootstrap(t, "dc1", false)
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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dir3, s3 := testServerDCBootstrap(t, "dc1", false)
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defer os.RemoveAll(dir3)
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defer s3.Shutdown()
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servers := []*Server{s1, s2, s3}
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := s2.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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if _, err := s3.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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for _, s := range servers {
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testutil.WaitForResult(func() (bool, error) {
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peers, _ := s.raftPeers.Peers()
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return len(peers) == 3, nil
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}, func(err error) {
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t.Fatalf("should have 3 peers")
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})
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}
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testutil.WaitForResult(func() (bool, error) {
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// Kill any server
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servers[0].Shutdown()
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// Force remove the non-leader (transition to left state)
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if err := servers[1].RemoveFailedNode(servers[0].config.NodeName); err != nil {
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t.Fatalf("err: %v", err)
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}
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for _, s := range servers[1:] {
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peers, _ := s.raftPeers.Peers()
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return len(peers) == 2, errors.New(fmt.Sprintf("%v", peers))
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}
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return true, nil
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}, func(err error) {
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t.Fatalf("err: %s", err)
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})
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}
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func TestLeader_LeftLeader(t *testing.T) {
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dir1, s1 := testServer(t)
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defer os.RemoveAll(dir1)
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defer s1.Shutdown()
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dir2, s2 := testServerDCBootstrap(t, "dc1", false)
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defer os.RemoveAll(dir2)
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defer s2.Shutdown()
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dir3, s3 := testServerDCBootstrap(t, "dc1", false)
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defer os.RemoveAll(dir3)
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defer s3.Shutdown()
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servers := []*Server{s1, s2, s3}
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// Try to join
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addr := fmt.Sprintf("127.0.0.1:%d",
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s1.config.SerfLANConfig.MemberlistConfig.BindPort)
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if _, err := s2.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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if _, err := s3.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
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}
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|
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for _, s := range servers {
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testutil.WaitForResult(func() (bool, error) {
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peers, _ := s.raftPeers.Peers()
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return len(peers) == 3, nil
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}, func(err error) {
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t.Fatalf("should have 3 peers")
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})
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}
|
|
|
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// Kill the leader!
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var leader *Server
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for _, s := range servers {
|
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if s.IsLeader() {
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leader = s
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break
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}
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}
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if leader == nil {
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t.Fatalf("Should have a leader")
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}
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leader.Leave()
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leader.Shutdown()
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time.Sleep(100 * time.Millisecond)
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|
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var remain *Server
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for _, s := range servers {
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if s == leader {
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continue
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}
|
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remain = s
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testutil.WaitForResult(func() (bool, error) {
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peers, _ := s.raftPeers.Peers()
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return len(peers) == 2, errors.New(fmt.Sprintf("%v", peers))
|
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}, func(err error) {
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t.Fatalf("should have 2 peers: %v", err)
|
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})
|
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}
|
|
|
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// Verify the old leader is deregistered
|
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state := remain.fsm.State()
|
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testutil.WaitForResult(func() (bool, error) {
|
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_, node, err := state.GetNode(leader.config.NodeName)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
return node == nil, nil
|
|
}, func(err error) {
|
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t.Fatalf("leader should be deregistered")
|
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})
|
|
}
|
|
|
|
func TestLeader_MultiBootstrap(t *testing.T) {
|
|
dir1, s1 := testServer(t)
|
|
defer os.RemoveAll(dir1)
|
|
defer s1.Shutdown()
|
|
|
|
dir2, s2 := testServer(t)
|
|
defer os.RemoveAll(dir2)
|
|
defer s2.Shutdown()
|
|
|
|
servers := []*Server{s1, s2}
|
|
|
|
// Try to join
|
|
addr := fmt.Sprintf("127.0.0.1:%d",
|
|
s1.config.SerfLANConfig.MemberlistConfig.BindPort)
|
|
if _, err := s2.JoinLAN([]string{addr}); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
for _, s := range servers {
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
peers := s.serfLAN.Members()
|
|
return len(peers) == 2, nil
|
|
}, func(err error) {
|
|
t.Fatalf("should have 2 peers")
|
|
})
|
|
}
|
|
|
|
// Ensure we don't have multiple raft peers
|
|
for _, s := range servers {
|
|
peers, _ := s.raftPeers.Peers()
|
|
if len(peers) != 1 {
|
|
t.Fatalf("should only have 1 raft peer!")
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestLeader_TombstoneGC_Reset(t *testing.T) {
|
|
dir1, s1 := testServer(t)
|
|
defer os.RemoveAll(dir1)
|
|
defer s1.Shutdown()
|
|
|
|
dir2, s2 := testServerDCBootstrap(t, "dc1", false)
|
|
defer os.RemoveAll(dir2)
|
|
defer s2.Shutdown()
|
|
|
|
dir3, s3 := testServerDCBootstrap(t, "dc1", false)
|
|
defer os.RemoveAll(dir3)
|
|
defer s3.Shutdown()
|
|
servers := []*Server{s1, s2, s3}
|
|
|
|
// Try to join
|
|
addr := fmt.Sprintf("127.0.0.1:%d",
|
|
s1.config.SerfLANConfig.MemberlistConfig.BindPort)
|
|
if _, err := s2.JoinLAN([]string{addr}); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
if _, err := s3.JoinLAN([]string{addr}); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
for _, s := range servers {
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
peers, _ := s.raftPeers.Peers()
|
|
return len(peers) == 3, nil
|
|
}, func(err error) {
|
|
t.Fatalf("should have 3 peers")
|
|
})
|
|
}
|
|
|
|
var leader *Server
|
|
for _, s := range servers {
|
|
if s.IsLeader() {
|
|
leader = s
|
|
break
|
|
}
|
|
}
|
|
if leader == nil {
|
|
t.Fatalf("Should have a leader")
|
|
}
|
|
|
|
// Check that the leader has a pending GC expiration
|
|
if !leader.tombstoneGC.PendingExpiration() {
|
|
t.Fatalf("should have pending expiration")
|
|
}
|
|
|
|
// Kill the leader
|
|
leader.Shutdown()
|
|
time.Sleep(100 * time.Millisecond)
|
|
|
|
// Wait for a new leader
|
|
leader = nil
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
for _, s := range servers {
|
|
if s.IsLeader() {
|
|
leader = s
|
|
return true, nil
|
|
}
|
|
}
|
|
return false, nil
|
|
}, func(err error) {
|
|
t.Fatalf("should have leader")
|
|
})
|
|
|
|
// Check that the new leader has a pending GC expiration
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
return leader.tombstoneGC.PendingExpiration(), nil
|
|
}, func(err error) {
|
|
t.Fatalf("should have pending expiration")
|
|
})
|
|
}
|
|
|
|
func TestLeader_ReapTombstones(t *testing.T) {
|
|
dir1, s1 := testServerWithConfig(t, func(c *Config) {
|
|
c.TombstoneTTL = 50 * time.Millisecond
|
|
c.TombstoneTTLGranularity = 10 * time.Millisecond
|
|
})
|
|
defer os.RemoveAll(dir1)
|
|
defer s1.Shutdown()
|
|
codec := rpcClient(t, s1)
|
|
|
|
testutil.WaitForLeader(t, s1.RPC, "dc1")
|
|
|
|
// Create a KV entry
|
|
arg := structs.KVSRequest{
|
|
Datacenter: "dc1",
|
|
Op: structs.KVSSet,
|
|
DirEnt: structs.DirEntry{
|
|
Key: "test",
|
|
Value: []byte("test"),
|
|
},
|
|
}
|
|
var out bool
|
|
if err := msgpackrpc.CallWithCodec(codec, "KVS.Apply", &arg, &out); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Delete the KV entry (tombstoned).
|
|
arg.Op = structs.KVSDelete
|
|
if err := msgpackrpc.CallWithCodec(codec, "KVS.Apply", &arg, &out); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Make sure there's a tombstone.
|
|
state := s1.fsm.State()
|
|
func() {
|
|
snap := state.Snapshot()
|
|
defer snap.Close()
|
|
stones, err := snap.Tombstones()
|
|
if err != nil {
|
|
t.Fatalf("err: %s", err)
|
|
}
|
|
if stones.Next() == nil {
|
|
t.Fatalf("missing tombstones")
|
|
}
|
|
if stones.Next() != nil {
|
|
t.Fatalf("unexpected extra tombstones")
|
|
}
|
|
}()
|
|
|
|
// Check that the new leader has a pending GC expiration by
|
|
// watching for the tombstone to get removed.
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
snap := state.Snapshot()
|
|
defer snap.Close()
|
|
stones, err := snap.Tombstones()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
return stones.Next() == nil, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|