stellarproject/heimdall
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enable master election

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Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
This commit is contained in:
Evan Hazlett 2019-10-06 22:10:29 -04:00
parent bde4dba555
commit 9b07492180
No known key found for this signature in database
GPG key ID: A519480096146526
8 changed files with 112 additions and 63 deletions
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131
api/v1/heimdall.pb.go
View file

@ -13,12 +13,14 @@ import (
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
math "math"
time "time"
)
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
var _ = time.Kitchen
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
@ -211,15 +213,16 @@ func (m *KeyPair) GetPublicKey() string {
}
type Node struct {
ID string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
Addr string `protobuf:"bytes,2,opt,name=addr,proto3" json:"addr,omitempty"`
KeyPair *KeyPair `protobuf:"bytes,3,opt,name=keypair,proto3" json:"keypair,omitempty"`
EndpointIP string `protobuf:"bytes,4,opt,name=endpoint_ip,json=endpointIp,proto3" json:"endpoint_ip,omitempty"`
EndpointPort uint64 `protobuf:"varint,5,opt,name=endpoint_port,json=endpointPort,proto3" json:"endpoint_port,omitempty"`
GatewayIP string `protobuf:"bytes,6,opt,name=gateway_ip,json=gatewayIp,proto3" json:"gateway_ip,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
ID string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
Addr string `protobuf:"bytes,2,opt,name=addr,proto3" json:"addr,omitempty"`
KeyPair *KeyPair `protobuf:"bytes,3,opt,name=keypair,proto3" json:"keypair,omitempty"`
EndpointIP string `protobuf:"bytes,4,opt,name=endpoint_ip,json=endpointIp,proto3" json:"endpoint_ip,omitempty"`
EndpointPort uint64 `protobuf:"varint,5,opt,name=endpoint_port,json=endpointPort,proto3" json:"endpoint_port,omitempty"`
GatewayIP string `protobuf:"bytes,6,opt,name=gateway_ip,json=gatewayIp,proto3" json:"gateway_ip,omitempty"`
Updated time.Time `protobuf:"bytes,7,opt,name=updated,proto3,stdtime" json:"updated"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Node) Reset() { *m = Node{} }
@ -288,6 +291,13 @@ func (m *Node) GetGatewayIP() string {
return ""
}
func (m *Node) GetUpdated() time.Time {
if m != nil {
return m.Updated
}
return time.Time{}
}
type NodesRequest struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
@ -707,56 +717,59 @@ func init() {
}
var fileDescriptor_b6184fc395da86b1 = []byte{
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}
// Reference imports to suppress errors if they are not otherwise used.

2
api/v1/heimdall.proto
View file

@ -4,6 +4,7 @@ package io.stellarproject.heimdall.api.v1;
import "gogoproto/gogo.proto";
import "google/protobuf/empty.proto";
import "google/protobuf/timestamp.proto";
option go_package = "github.com/stellarproject/heimdall/api/v1;v1";
@ -43,6 +44,7 @@ message Node {
string endpoint_ip = 4 [(gogoproto.customname) = "EndpointIP"];
uint64 endpoint_port = 5;
string gateway_ip = 6 [(gogoproto.customname) = "GatewayIP"];
google.protobuf.Timestamp updated = 7 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
}
message NodesRequest {}

5
cmd/hctl/nodes.go
View file

@ -26,6 +26,7 @@ import (
"os"
"text/tabwriter"
humanize "github.com/dustin/go-humanize"
"github.com/urfave/cli"
)
@ -53,10 +54,10 @@ var listNodesCommand = cli.Command{
}
w := tabwriter.NewWriter(os.Stdout, 20, 1, 3, ' ', 0)
fmt.Fprintf(w, "ID\tADDR\tENDPOINT\tGATEWAY\tPUBLIC KEY\n")
fmt.Fprintf(w, "ID\tADDR\tENDPOINT\tGATEWAY\tUPDATED\tPUBLIC KEY\n")
for _, n := range nodes {
ep := fmt.Sprintf("%s:%d", n.EndpointIP, n.EndpointPort)
fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\n", n.ID, n.Addr, ep, n.GatewayIP, n.KeyPair.PublicKey)
fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s\n", n.ID, n.Addr, ep, n.GatewayIP, humanize.Time(n.Updated), n.KeyPair.PublicKey)
}
w.Flush()

1
go.mod
View file

@ -6,6 +6,7 @@ require (
github.com/certifi/gocertifi v0.0.0-20190905060710-a5e0173ced67 // indirect
github.com/containerd/typeurl v0.0.0-20190911142611-5eb25027c9fd
github.com/crosbymichael/guard v0.0.0-20190716141324-5c2daadf8067 // indirect
github.com/dustin/go-humanize v1.0.0
github.com/getsentry/raven-go v0.2.0 // indirect
github.com/gogo/googleapis v1.3.0
github.com/gogo/protobuf v1.3.0

2
go.sum
View file

@ -19,6 +19,8 @@ github.com/crosbymichael/guard v0.0.0-20190716141324-5c2daadf8067/go.mod h1:+l2f
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
github.com/ehazlett/ttlcache v0.0.0-20190820213212-4400e3aef9f0/go.mod h1:D7IiYXsX2n2xixWvFTxGeZucCvvNtI14ikLj6L9Kp9E=
github.com/getsentry/raven-go v0.2.0 h1:no+xWJRb5ZI7eE8TWgIq1jLulQiIoLG0IfYxv5JYMGs=
github.com/getsentry/raven-go v0.2.0/go.mod h1:KungGk8q33+aIAZUIVWZDr2OfAEBsO49PX4NzFV5kcQ=

5
server/connect.go
View file

@ -34,6 +34,8 @@ import (
var (
// ErrInvalidAuth is returned when an invalid cluster key is specified upon connect
ErrInvalidAuth = errors.New("invalid cluster key specified")
// ErrNoMaster is returned if there is no configured master yet
ErrNoMaster = errors.New("no configured master")
)
// Connect is called when a peer wants to connect to the node
@ -48,6 +50,9 @@ func (s *Server) Connect(ctx context.Context, req *v1.ConnectRequest) (*v1.Conne
}
data, err := redis.Bytes(s.local(ctx, "GET", masterKey))
if err != nil {
if err == redis.ErrNil {
return nil, ErrNoMaster
}
return nil, err
}
var master v1.Master

26
server/node.go
View file

@ -24,6 +24,7 @@ package server
import (
"context"
"net/url"
"sort"
"strings"
"time"
@ -121,6 +122,8 @@ func (s *Server) configureNode() error {
continue
}
go s.replicaMonitor()
return nil
}
}
@ -178,6 +181,16 @@ func (s *Server) replicaMonitor() {
for range t.C {
if _, err := redis.Bytes(s.local(context.Background(), "GET", masterKey)); err != nil {
if err == redis.ErrNil {
// skip configure until new leader election
n, err := s.getNextMaster(context.Background())
if err != nil {
logrus.Error(err)
continue
}
if n.ID != s.cfg.ID {
logrus.Debugf("waiting for new master to initialize: %s", n.ID)
continue
}
if err := s.configureNode(); err != nil {
logrus.Error(err)
continue
@ -194,6 +207,18 @@ func (s *Server) replicaMonitor() {
t.Stop()
}
func (s *Server) getNextMaster(ctx context.Context) (*v1.Node, error) {
nodes, err := s.getNodes(ctx)
if err != nil {
return nil, err
}
if len(nodes) == 0 {
return nil, nil
}
sort.SliceStable(nodes, func(i, j int) bool { return nodes[i].Updated.Before(nodes[j].Updated) })
return nodes[len(nodes)-1], nil
}
func (s *Server) masterHeartbeat() {
logrus.Debugf("starting master heartbeat: ttl=%s", masterHeartbeatInterval)
// initial update
@ -286,6 +311,7 @@ func (s *Server) nodeHeartbeat(ctx context.Context) {
continue
}
node := &v1.Node{
Updated: time.Now(),
ID: s.cfg.ID,
Addr: s.cfg.GRPCAddress,
KeyPair: keyPair,

3
server/server.go
View file

@ -58,7 +58,7 @@ const (
var (
empty = &ptypes.Empty{}
masterHeartbeatInterval = time.Second * 5
nodeHeartbeatInterval = time.Second * 60
nodeHeartbeatInterval = time.Second * 15
nodeHeartbeatExpiry = 86400
peerConfigUpdateInterval = time.Second * 10
@ -130,7 +130,6 @@ func (s *Server) Run() error {
go s.replicaMonitor()
} else {
// starting as master; remove existing key
if err := s.configureNode(); err != nil {
return err
}