// Ensure that a retention policy can be updated.
func TestData_UpdateRetentionPolicy(t *testing.T) {
var data meta.Data
if err := data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 1}); err != nil {
t.Fatal(err)
}
// Update the policy.
var rpu meta.RetentionPolicyUpdate
rpu.SetName("rp1")
rpu.SetDuration(10 * time.Hour)
rpu.SetReplicaN(3)
if err := data.UpdateRetentionPolicy("db0", "rp0", &rpu); err != nil {
t.Fatal(err)
}
// Verify the policy was changed.
if rpi, _ := data.RetentionPolicy("db0", "rp1"); !reflect.DeepEqual(rpi, &meta.RetentionPolicyInfo{
Name: "rp1",
Duration: 10 * time.Hour,
ShardGroupDuration: 3600000000000,
ReplicaN: 3,
}) {
t.Fatalf("unexpected policy: %#v", rpi)
}
}
// Ensure that creating a retention policy on a non-existent database returns an error.
func TestData_CreateRetentionPolicy_ErrDatabaseNotFound(t *testing.T) {
data := meta.Data{Nodes: []meta.NodeInfo{{ID: 1}}}
expErr := influxdb.ErrDatabaseNotFound("db0")
if err := data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 1}); err.Error() != expErr.Error() {
t.Fatalf("unexpected error: %s", err)
}
}
// Ensure a retention policy can be created.
func TestData_CreateRetentionPolicy(t *testing.T) {
data := meta.Data{Nodes: []meta.NodeInfo{{ID: 1}, {ID: 2}}}
if err := data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
}
// Create policy.
if err := data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{
Name: "rp0",
ReplicaN: 2,
Duration: 4 * time.Hour,
}); err != nil {
t.Fatal(err)
}
// Verify policy exists.
if !reflect.DeepEqual(data.Databases[0].RetentionPolicies, []meta.RetentionPolicyInfo{
{
Name: "rp0",
ReplicaN: 2,
Duration: 4 * time.Hour,
ShardGroupDuration: 1 * time.Hour,
},
}) {
t.Fatalf("unexpected policies: %#v", data.Databases[0].RetentionPolicies)
}
}
// Ensure that a shard group can be created on a database for a given timestamp.
func TestData_CreateShardGroup(t *testing.T) {
var data meta.Data
if err := data.CreateNode("node0"); err != nil {
t.Fatal(err)
} else if err = data.CreateNode("node1"); err != nil {
t.Fatal(err)
} else if err = data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 2, Duration: 1 * time.Hour}); err != nil {
t.Fatal(err)
}
// Create shard group.
if err := data.CreateShardGroup("db0", "rp0", time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC)); err != nil {
t.Fatal(err)
}
// Verify the shard group was created.
if sgi, _ := data.ShardGroupByTimestamp("db0", "rp0", time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC)); !reflect.DeepEqual(sgi, &meta.ShardGroupInfo{
ID: 1,
StartTime: time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC),
EndTime: time.Date(2000, time.January, 1, 1, 0, 0, 0, time.UTC),
Shards: []meta.ShardInfo{
{ID: 1, OwnerIDs: []uint64{1, 2}},
},
}) {
t.Fatalf("unexpected shard group: %#v", sgi)
} else if !sgi.Shards[0].OwnedBy(1) || !sgi.Shards[0].OwnedBy(2) || sgi.Shards[0].OwnedBy(3) {
// Verify shard is correctly owned-by the node.
t.Fatalf("new shard is not owned by correct node")
}
}
// Ensure that creating a policy with a replication factor that doesn't match
// the number of nodes in the cluster will return an error. This is a temporary
// restriction until v0.9.1 is released.
func TestData_CreateRetentionPolicy_ErrReplicationFactorMismatch(t *testing.T) {
data := meta.Data{
Nodes: []meta.NodeInfo{{ID: 1}, {ID: 2}, {ID: 3}},
}
if err := data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 2}); err != meta.ErrReplicationFactorMismatch {
t.Fatalf("unexpected error: %s", err)
}
}
// Ensure that creating an already existing policy returns an error.
func TestData_CreateRetentionPolicy_ErrRetentionPolicyExists(t *testing.T) {
var data meta.Data
if err := data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 1}); err != nil {
t.Fatal(err)
}
if err := data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 1}); err != meta.ErrRetentionPolicyExists {
t.Fatalf("unexpected error: %s", err)
}
}
// Ensure a retention policy can be removed.
func TestData_DropRetentionPolicy(t *testing.T) {
var data meta.Data
if err := data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 1}); err != nil {
t.Fatal(err)
}
if err := data.DropRetentionPolicy("db0", "rp0"); err != nil {
t.Fatal(err)
} else if len(data.Databases[0].RetentionPolicies) != 0 {
t.Fatalf("unexpected policies: %#v", data.Databases[0].RetentionPolicies)
}
}
// Ensure a subscription can be created.
func TestData_CreateSubscription(t *testing.T) {
var data meta.Data
rpi := &meta.RetentionPolicyInfo{
Name: "rp0",
ReplicaN: 3,
}
if err := data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err := data.CreateRetentionPolicy("db0", rpi); err != nil {
t.Fatal(err)
} else if err := data.CreateSubscription("db0", "rp0", "s0", "ANY", []string{"udp://h0:1234", "udp://h1:1234"}); err != nil {
t.Fatal(err)
} else if !reflect.DeepEqual(data.Databases[0].RetentionPolicies[0].Subscriptions, []meta.SubscriptionInfo{
{Name: "s0", Mode: "ANY", Destinations: []string{"udp://h0:1234", "udp://h1:1234"}},
}) {
t.Fatalf("unexpected subscriptions: %#v", data.Databases[0].RetentionPolicies[0].Subscriptions)
}
}
// Ensure a shard group can be removed by ID.
func TestData_DeleteShardGroup(t *testing.T) {
var data meta.Data
if err := data.CreateNode("node0"); err != nil {
t.Fatal(err)
} else if err := data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 1}); err != nil {
t.Fatal(err)
} else if err := data.CreateShardGroup("db0", "rp0", time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC)); err != nil {
t.Fatal(err)
}
if err := data.DeleteShardGroup("db0", "rp0", 1); err != nil {
t.Fatal(err)
}
if sg := data.Databases[0].RetentionPolicies[0].ShardGroups[0]; !sg.Deleted() {
t.Fatalf("shard group not correctly flagged as deleted")
}
}
// Ensure that a shard group is correctly detected as expired.
func TestData_ShardGroupExpiredDeleted(t *testing.T) {
var data meta.Data
if err := data.CreateNode("node0"); err != nil {
t.Fatal(err)
} else if err = data.CreateNode("node1"); err != nil {
t.Fatal(err)
} else if err = data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 2, Duration: 1 * time.Hour}); err != nil {
t.Fatal(err)
}
// Create shard groups.
if err := data.CreateShardGroup("db0", "rp0", time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC)); err != nil {
t.Fatal(err)
}
if err := data.CreateShardGroup("db0", "rp0", time.Date(2001, time.January, 1, 0, 0, 0, 0, time.UTC)); err != nil {
t.Fatal(err)
}
// Check expiration.
rp, _ := data.RetentionPolicy("db0", "rp0")
groups := rp.ExpiredShardGroups(time.Date(2001, time.January, 1, 0, 0, 0, 0, time.UTC))
if len(groups) != 1 {
t.Fatalf("wrong number of expired shard groups returned, got %d, exp 1", len(groups))
}
if groups[0].StartTime != time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC) {
t.Fatal("wrong shard group marked as expired")
}
// Check deletion.
if err := data.DeleteShardGroup("db0", "rp0", groups[0].ID); err != nil {
t.Fatal(err)
}
groups = rp.DeletedShardGroups()
if len(groups) != 1 {
t.Fatalf("wrong number of deleted shard groups returned, got %d, exp 1", len(groups))
}
if groups[0].StartTime != time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC) {
t.Fatal("wrong shard group marked as expired")
}
}
// Ensure that a retention policy can be retrieved.
func TestData_RetentionPolicy(t *testing.T) {
var data meta.Data
if err := data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0"}); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp1"}); err != nil {
t.Fatal(err)
}
if rpi, err := data.RetentionPolicy("db0", "rp0"); err != nil {
t.Fatal(err)
} else if !reflect.DeepEqual(rpi, &meta.RetentionPolicyInfo{
Name: "rp0",
ShardGroupDuration: 604800000000000,
}) {
t.Fatalf("unexpected value: %#v", rpi)
}
}
// Ensure a node can be removed with shard info in play
func TestData_DeleteNode_Shards(t *testing.T) {
var data meta.Data
if err := data.CreateNode("host0"); err != nil {
t.Fatal(err)
} else if err = data.CreateNode("host1"); err != nil {
t.Fatal(err)
} else if err := data.CreateNode("host2"); err != nil {
t.Fatal(err)
} else if err := data.CreateNode("host3"); err != nil {
t.Fatal(err)
}
if err := data.CreateDatabase("mydb"); err != nil {
t.Fatal(err)
}
rpi := &meta.RetentionPolicyInfo{
Name: "myrp",
ReplicaN: 3,
}
if err := data.CreateRetentionPolicy("mydb", rpi); err != nil {
t.Fatal(err)
}
if err := data.CreateShardGroup("mydb", "myrp", time.Now()); err != nil {
t.Fatal(err)
}
if len(data.Databases[0].RetentionPolicies[0].ShardGroups[0].Shards[0].Owners) != 3 {
t.Fatal("wrong number of shard owners")
}
if err := data.DeleteNode(2, false); err != nil {
t.Fatal(err)
}
if got, exp := len(data.Databases[0].RetentionPolicies[0].ShardGroups[0].Shards[0].Owners), 2; exp != got {
t.Fatalf("wrong number of shard owners, got %d, exp %d", got, exp)
}
for _, s := range data.Databases[0].RetentionPolicies[0].ShardGroups[0].Shards {
if s.OwnedBy(2) {
t.Fatal("shard still owned by delted node")
}
}
}
// Ensure that a default retention policy can be set.
func TestData_SetDefaultRetentionPolicy(t *testing.T) {
var data meta.Data
if err := data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 1}); err != nil {
t.Fatal(err)
}
// Verify there is no default policy on the database initially.
if name := data.Database("db0").DefaultRetentionPolicy; name != "" {
t.Fatalf("unexpected initial default retention policy: %s", name)
}
// Set the default policy.
if err := data.SetDefaultRetentionPolicy("db0", "rp0"); err != nil {
t.Fatal(err)
}
// Verify the default policy is now set.
if name := data.Database("db0").DefaultRetentionPolicy; name != "rp0" {
t.Fatalf("unexpected default retention policy: %s", name)
}
}
// Ensure that creating a policy without a name returns an error.
func TestData_CreateRetentionPolicy_ErrNameRequired(t *testing.T) {
data := meta.Data{Nodes: []meta.NodeInfo{{ID: 1}}}
if err := data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: ""}); err != meta.ErrRetentionPolicyNameRequired {
t.Fatalf("unexpected error: %s", err)
}
}