387 lines
8.4 KiB
Go
387 lines
8.4 KiB
Go
package consul
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import (
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"fmt"
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"os"
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"strings"
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"testing"
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"time"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/consul/testrpc"
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"github.com/hashicorp/consul/testutil/retry"
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"github.com/hashicorp/go-uuid"
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"github.com/hashicorp/net-rpc-msgpackrpc"
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)
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func generateUUID() (ret string) {
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var err error
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if ret, err = uuid.GenerateUUID(); err != nil {
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panic(fmt.Sprintf("Unable to generate a UUID, %v", err))
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}
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return ret
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}
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func TestInitializeSessionTimers(t *testing.T) {
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t.Parallel()
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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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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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state := s1.fsm.State()
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if err := state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"}); err != nil {
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t.Fatalf("err: %s", err)
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}
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session := &structs.Session{
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ID: generateUUID(),
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Node: "foo",
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TTL: "10s",
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}
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if err := state.SessionCreate(100, session); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Reset the session timers
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err := s1.initializeSessionTimers()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check that we have a timer
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if s1.sessionTimers.Get(session.ID) == nil {
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t.Fatalf("missing session timer")
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}
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}
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func TestResetSessionTimer_Fault(t *testing.T) {
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t.Parallel()
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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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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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// Should not exist
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err := s1.resetSessionTimer(generateUUID(), nil)
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if err == nil || !strings.Contains(err.Error(), "not found") {
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t.Fatalf("err: %v", err)
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}
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// Create a session
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state := s1.fsm.State()
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if err := state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"}); err != nil {
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t.Fatalf("err: %s", err)
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}
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session := &structs.Session{
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ID: generateUUID(),
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Node: "foo",
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TTL: "10s",
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}
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if err := state.SessionCreate(100, session); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Reset the session timer
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err = s1.resetSessionTimer(session.ID, nil)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check that we have a timer
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if s1.sessionTimers.Get(session.ID) == nil {
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t.Fatalf("missing session timer")
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}
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}
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func TestResetSessionTimer_NoTTL(t *testing.T) {
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t.Parallel()
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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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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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// Create a session
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state := s1.fsm.State()
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if err := state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"}); err != nil {
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t.Fatalf("err: %s", err)
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}
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session := &structs.Session{
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ID: generateUUID(),
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Node: "foo",
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TTL: "0000s",
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}
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if err := state.SessionCreate(100, session); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Reset the session timer
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err := s1.resetSessionTimer(session.ID, session)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check that we have a timer
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if s1.sessionTimers.Get(session.ID) != nil {
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t.Fatalf("should not have session timer")
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}
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}
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func TestResetSessionTimer_InvalidTTL(t *testing.T) {
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t.Parallel()
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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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// Create a session
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session := &structs.Session{
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ID: generateUUID(),
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Node: "foo",
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TTL: "foo",
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}
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// Reset the session timer
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err := s1.resetSessionTimer(session.ID, session)
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if err == nil || !strings.Contains(err.Error(), "Invalid Session TTL") {
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t.Fatalf("err: %v", err)
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}
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}
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func TestResetSessionTimerLocked(t *testing.T) {
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t.Parallel()
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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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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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s1.createSessionTimer("foo", 5*time.Millisecond)
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if s1.sessionTimers.Get("foo") == nil {
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t.Fatalf("missing timer")
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}
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time.Sleep(10 * time.Millisecond * structs.SessionTTLMultiplier)
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if s1.sessionTimers.Get("foo") != nil {
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t.Fatalf("timer should be gone")
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}
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}
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func TestResetSessionTimerLocked_Renew(t *testing.T) {
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t.Parallel()
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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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ttl := 100 * time.Millisecond
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// create the timer
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s1.createSessionTimer("foo", ttl)
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if s1.sessionTimers.Get("foo") == nil {
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t.Fatalf("missing timer")
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}
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// wait until it is "expired" but at this point
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// the session still exists.
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time.Sleep(ttl)
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if s1.sessionTimers.Get("foo") == nil {
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t.Fatal("missing timer")
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}
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// renew the session which will reset the TTL to 2*ttl
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// since that is the current SessionTTLMultiplier
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s1.createSessionTimer("foo", ttl)
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// Watch for invalidation
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renew := time.Now()
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deadline := renew.Add(2 * structs.SessionTTLMultiplier * ttl)
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for {
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now := time.Now()
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if now.After(deadline) {
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t.Fatal("should have expired by now")
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}
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// timer still exists
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if s1.sessionTimers.Get("foo") != nil {
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time.Sleep(time.Millisecond)
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continue
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}
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// timer gone
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if now.Sub(renew) < ttl {
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t.Fatalf("early invalidate")
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}
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break
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}
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}
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func TestInvalidateSession(t *testing.T) {
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t.Parallel()
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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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testrpc.WaitForLeader(t, s1.RPC, "dc1")
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// Create a session
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state := s1.fsm.State()
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if err := state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"}); err != nil {
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t.Fatalf("err: %s", err)
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}
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session := &structs.Session{
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ID: generateUUID(),
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Node: "foo",
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TTL: "10s",
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}
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if err := state.SessionCreate(100, session); err != nil {
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t.Fatalf("err: %v", err)
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}
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// This should cause a destroy
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s1.invalidateSession(session.ID)
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// Check it is gone
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_, sess, err := state.SessionGet(nil, session.ID)
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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 sess != nil {
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t.Fatalf("should destroy session")
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}
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}
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func TestClearSessionTimer(t *testing.T) {
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t.Parallel()
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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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s1.createSessionTimer("foo", 5*time.Millisecond)
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err := s1.clearSessionTimer("foo")
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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 s1.sessionTimers.Get("foo") != nil {
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t.Fatalf("timer should be gone")
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}
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}
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func TestClearAllSessionTimers(t *testing.T) {
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t.Parallel()
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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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s1.createSessionTimer("foo", 10*time.Millisecond)
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s1.createSessionTimer("bar", 10*time.Millisecond)
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s1.createSessionTimer("baz", 10*time.Millisecond)
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err := s1.clearAllSessionTimers()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// sessionTimers is guarded by the lock
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if s1.sessionTimers.Len() != 0 {
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t.Fatalf("timers should be gone")
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}
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}
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func TestServer_SessionTTL_Failover(t *testing.T) {
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t.Parallel()
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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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joinLAN(t, s2, s1)
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joinLAN(t, s3, s1)
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retry.Run(t, func(r *retry.R) { r.Check(wantPeers(s1, 3)) })
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// Find the leader
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var leader *Server
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for _, s := range servers {
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// Check that s.sessionTimers is empty
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if s.sessionTimers.Len() != 0 {
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t.Fatalf("should have no sessionTimers")
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}
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// Find the leader too
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if s.IsLeader() {
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leader = s
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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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codec := rpcClient(t, leader)
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defer codec.Close()
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// Register a node
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node := structs.RegisterRequest{
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Datacenter: s1.config.Datacenter,
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Node: "foo",
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Address: "127.0.0.1",
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}
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var out struct{}
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if err := s1.RPC("Catalog.Register", &node, &out); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Create a TTL session
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arg := structs.SessionRequest{
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Datacenter: "dc1",
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Op: structs.SessionCreate,
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Session: structs.Session{
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Node: "foo",
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TTL: "10s",
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},
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}
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var id1 string
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if err := msgpackrpc.CallWithCodec(codec, "Session.Apply", &arg, &id1); err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check that sessionTimers has the session ID
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if leader.sessionTimers.Get(id1) == nil {
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t.Fatalf("missing session timer")
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}
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// Shutdown the leader!
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leader.Shutdown()
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// sessionTimers should be cleared on leader shutdown
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if leader.sessionTimers.Len() != 0 {
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t.Fatalf("session timers should be empty on the shutdown leader")
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}
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// Find the new leader
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retry.Run(t, func(r *retry.R) {
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leader = nil
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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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}
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}
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if leader == nil {
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r.Fatal("Should have a new leader")
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}
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// Ensure session timer is restored
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if leader.sessionTimers.Get(id1) == nil {
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r.Fatal("missing session timer")
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}
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})
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}
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