Esempio n. 1
0
func TestMemberSimple(t *testing.T) {
	st := store.New()
	defer close(st.Ops)
	fp := &test.FakeProposer{Store: st}
	c := make(chan string)
	go Clean(c, fp.Store, fp)

	fp.Propose([]byte(store.MustEncodeSet("/ctl/node/a/x", "a", store.Missing)))
	fp.Propose([]byte(store.MustEncodeSet("/ctl/node/a/y", "b", store.Missing)))
	fp.Propose([]byte(store.MustEncodeSet("/ctl/node/a/addr", "1.2.3.4", store.Missing)))
	fp.Propose([]byte(store.MustEncodeSet("/ctl/cal/0", "a", store.Missing)))

	calCh, err := fp.Wait(store.MustCompileGlob("/ctl/cal/0"), 1+<-fp.Seqns)
	if err != nil {
		panic(err)
	}
	nodeCh, err := fp.Wait(store.MustCompileGlob("/ctl/node/a/?"), 1+<-fp.Seqns)
	if err != nil {
		panic(err)
	}

	// indicate that this peer is inactive
	go func() { c <- "1.2.3.4" }()

	ev := <-calCh
	assert.T(t, ev.IsSet())
	assert.Equal(t, "", ev.Body)

	cs := []int{}

	ev = <-nodeCh
	assert.T(t, ev.IsDel())
	cs = append(cs, int(ev.Path[len(ev.Path)-1]))
	nodeCh, err = fp.Wait(store.MustCompileGlob("/ctl/node/a/?"), ev.Seqn+1)
	if err != nil {
		panic(err)
	}

	ev = <-nodeCh
	assert.T(t, ev.IsDel())
	cs = append(cs, int(ev.Path[len(ev.Path)-1]))

	sort.Ints(cs)
	assert.Equal(t, []int{'x', 'y'}, cs)
}
Esempio n. 2
0
	"io"
	"log"
	"net"
	"os"
	"syscall"
	"time"
)

const (
	alpha     = 50
	maxUDPLen = 3000
)

const calDir = "/ctl/cal"

var calGlob = store.MustCompileGlob(calDir + "/*")

type proposer struct {
	seqns chan int64
	props chan *consensus.Prop
	st    *store.Store
}

func (p *proposer) Propose(v []byte) (e store.Event) {
	for e.Mut != string(v) {
		n := <-p.seqns
		w, err := p.st.Wait(store.Any, n)
		if err != nil {
			panic(err) // can't happen
		}
		p.props <- &consensus.Prop{n, v}
Esempio n. 3
0
package member

import (
	"github.com/4ad/doozerd/consensus"
	"github.com/4ad/doozerd/store"
	"log"
)

var (
	calGlob = store.MustCompileGlob("/ctl/cal/*")
)

func Clean(c chan string, st *store.Store, p consensus.Proposer) {
	for addr := range c {
		_, g := st.Snap()
		name := getName(addr, g)
		if name != "" {
			go func() {
				clearSlot(p, g, name)
				removeInfo(p, g, name)
			}()
		}
	}
}

func getName(addr string, g store.Getter) string {
	for _, name := range store.Getdir(g, "/ctl/node") {
		if store.GetString(g, "/ctl/node/"+name+"/addr") == addr {
			return name
		}
	}