Example #1
0
// 创建指定的Path
func (top *Topology) CreateDir(path string) (string, error) {
	dir := top.FullPath(path)
	if ok, _ := top.Exist(dir); ok {
		log.Println("Path Exists")
		return dir, nil
	} else {
		return zkhelper.CreateRecursive(top.zkConn, dir, "", 0, zkhelper.DefaultDirACLs())
	}
}
Example #2
0
func CreateProxyInfo(zkConn zkhelper.Conn, productName string, pi *ProxyInfo) (string, error) {
	data, err := json.Marshal(pi)
	if err != nil {
		return "", errors.Trace(err)
	}
	dir := GetProxyPath(productName)
	zkhelper.CreateRecursive(zkConn, dir, "", 0, zkhelper.DefaultDirACLs())
	return zkConn.Create(path.Join(dir, pi.Id), data, zk.FlagEphemeral, zkhelper.DefaultFileACLs())
}
Example #3
0
func NewMigrateManager(zkConn zkhelper.Conn, pn string) *MigrateManager {
	m := &MigrateManager{
		zkConn:      zkConn,
		productName: pn,
	}
	zkhelper.CreateRecursive(m.zkConn, getMigrateTasksPath(m.productName), "", 0, zkhelper.DefaultDirACLs())
	m.mayRecover()
	go m.loop()
	return m
}
Example #4
0
func TestWaitForReceiver(t *testing.T) {
	fakeZkConn := zkhelper.NewConn()
	proxies := []ProxyInfo{}
	for i := 0; i < 5; i++ {
		proxies = append(proxies, ProxyInfo{
			Id:    fmt.Sprintf("proxy_%d", i),
			Addr:  fmt.Sprintf("localhost:%d", i+1234),
			State: PROXY_STATE_ONLINE,
		})
		CreateProxyInfo(fakeZkConn, productName, &proxies[i])
	}
	zkhelper.CreateRecursive(fakeZkConn, GetActionResponsePath(productName)+"/1", "", 0, zkhelper.DefaultDirACLs())
	go func() {
		time.Sleep(time.Second * 2)
		doResponseForTest(fakeZkConn, "1", &proxies[0])
		doResponseForTest(fakeZkConn, "1", &proxies[1])
		doResponseForTest(fakeZkConn, "1", &proxies[2])
		doResponseForTest(fakeZkConn, "1", &proxies[3])
		doResponseForTest(fakeZkConn, "1", &proxies[4])
		for {
			for i := 0; i < 5; i++ {
				pname := fmt.Sprintf("proxy_%d", i)
				p, _ := GetProxyInfo(fakeZkConn, productName, pname)
				if p != nil && p.State == PROXY_STATE_MARK_OFFLINE {
					zkhelper.DeleteRecursive(fakeZkConn, path.Join(GetProxyPath(productName), pname), -1)
				}
			}
		}
	}()
	err := WaitForReceiverWithTimeout(fakeZkConn, productName, GetActionResponsePath(productName)+"/1", proxies, 1000*10)
	if err != nil {
		t.Error("there is error not as expected")
	}
	p, _ := GetProxyInfo(fakeZkConn, productName, "proxy_0")
	if p == nil || p.State != PROXY_STATE_ONLINE {
		t.Error("proxy_0 status is not as expected")
	}
	p, _ = GetProxyInfo(fakeZkConn, productName, "proxy_1")
	if p == nil || p.State != PROXY_STATE_ONLINE {
		t.Error("proxy_1 status is not as expected")
	}
	p, _ = GetProxyInfo(fakeZkConn, productName, "proxy_2")
	if p == nil || p.State != PROXY_STATE_ONLINE {
		t.Error("proxy_2 status is not as expected")
	}
	p, _ = GetProxyInfo(fakeZkConn, productName, "proxy_3")
	if p == nil || p.State != PROXY_STATE_ONLINE {
		t.Error("proxy_3 status is not as expected")
	}
	p, _ = GetProxyInfo(fakeZkConn, productName, "proxy_4")
	if p == nil || p.State != PROXY_STATE_ONLINE {
		t.Error("proxy_4 status is not as expected")
	}
}
Example #5
0
func createDashboardNode() error {

	// make sure root dir is exists
	rootDir := fmt.Sprintf("/zk/codis/db_%s", globalEnv.ProductName())
	zkhelper.CreateRecursive(safeZkConn, rootDir, "", 0, zkhelper.DefaultDirACLs())

	zkPath := fmt.Sprintf("%s/dashboard", rootDir)
	// make sure we're the only one dashboard
	if exists, _, _ := safeZkConn.Exists(zkPath); exists {
		data, _, _ := safeZkConn.Get(zkPath)
		return errors.New("dashboard already exists: " + string(data))
	}

	content := fmt.Sprintf(`{"addr": "%v", "pid": %v}`, globalEnv.DashboardAddr(), os.Getpid())
	pathCreated, err := safeZkConn.Create(zkPath, []byte(content), 0, zkhelper.DefaultFileACLs())
	createdDashboardNode = true
	log.Info("dashboard node created:", pathCreated, string(content))

	return errors.Trace(err)
}
Example #6
0
func createDashboardNode() error {

	// make sure root dir is exists
	rootDir := fmt.Sprintf("/zk/codis/db_%s", globalEnv.ProductName())
	zkhelper.CreateRecursive(safeZkConn, rootDir, "", 0, zkhelper.DefaultDirACLs())

	zkPath := fmt.Sprintf("%s/dashboard", rootDir)
	// make sure we're the only one dashboard
	if exists, _, _ := safeZkConn.Exists(zkPath); exists {
		data, _, _ := safeZkConn.Get(zkPath)
		return errors.New("dashboard already exists: " + string(data))
	}

	content := fmt.Sprintf(`{"addr": "%v", "pid": %v}`, globalEnv.DashboardAddr(), os.Getpid())
	pathCreated, err := safeZkConn.Create(zkPath, []byte(content), 0, zkhelper.DefaultFileACLs())
	createdDashboardNode = true
	log.Infof("dashboard node created: %v, %s", pathCreated, string(content))
	log.Warn("********** Attention **********")
	log.Warn("You should use `kill {pid}` rather than `kill -9 {pid}` to stop me,")
	log.Warn("or the node resisted on zk will not be cleaned when I'm quiting and you must remove it manually")
	log.Warn("*******************************")
	return errors.Trace(err)
}
Example #7
0
func CreateProxyFenceNode(zkConn zkhelper.Conn, productName string, pi *ProxyInfo) (string, error) {
	return zkhelper.CreateRecursive(zkConn, path.Join(GetProxyFencePath(productName), pi.Addr), "",
		0, zkhelper.DefaultFileACLs())
}