func apiSlotRangeSet(task RangeSetTask) (int, string) {
lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
if err := lock.LockWithTimeout(0, fmt.Sprintf("set slot range, %+v", task)); err != nil {
return 500, err.Error()
}
defer func() {
err := lock.Unlock()
if err != nil && err != zk.ErrNoNode {
log.ErrorErrorf(err, "unlock node failed")
}
}()
// default set online
if len(task.Status) == 0 {
task.Status = string(models.SLOT_STATUS_ONLINE)
}
err := models.SetSlotRange(safeZkConn, globalEnv.ProductName(), task.FromSlot, task.ToSlot, task.NewGroupId, models.SlotStatus(task.Status))
if err != nil {
log.ErrorErrorf(err, "set slot range [%d,%d] failed", task.FromSlot, task.ToSlot)
return 500, err.Error()
}
return jsonRetSucc()
}
// actions
func apiActionGC(r *http.Request) (int, string) {
r.ParseForm()
keep, _ := strconv.Atoi(r.FormValue("keep"))
secs, _ := strconv.Atoi(r.FormValue("secs"))
lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
if err := lock.LockWithTimeout(0, fmt.Sprintf("action gc")); err != nil {
return 500, err.Error()
}
defer func() {
err := lock.Unlock()
if err != nil && err != zk.ErrNoNode {
log.ErrorErrorf(err, "unlock node failed")
}
}()
var err error
if keep >= 0 {
err = models.ActionGC(safeZkConn, globalEnv.ProductName(), models.GC_TYPE_N, keep)
} else if secs > 0 {
err = models.ActionGC(safeZkConn, globalEnv.ProductName(), models.GC_TYPE_SEC, secs)
}
if err != nil {
return 500, err.Error()
}
return jsonRetSucc()
}
func apiPromoteServer(server models.Server, param martini.Params) (int, string) {
lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
if err := lock.LockWithTimeout(0, fmt.Sprintf("promote server %+v", server)); err != nil {
return 500, err.Error()
}
defer func() {
err := lock.Unlock()
if err != nil && err != zk.ErrNoNode {
log.ErrorErrorf(err, "unlock node failed")
}
}()
group, err := models.GetGroup(safeZkConn, globalEnv.ProductName(), server.GroupId)
if err != nil {
log.ErrorErrorf(err, "get group %d failed", server.GroupId)
return 500, err.Error()
}
err = group.Promote(safeZkConn, server.Addr, globalEnv.Password())
if err != nil {
log.ErrorErrorf(err, "promote group %d failed", server.GroupId)
return 500, err.Error()
}
return jsonRetSucc()
}
// add redis server to exist server group
func apiAddServerToGroup(server models.Server, param martini.Params) (int, string) {
groupId, _ := strconv.Atoi(param["id"])
lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
if err := lock.LockWithTimeout(0, fmt.Sprintf("add server to group, %+v", server)); err != nil {
return 500, err.Error()
}
defer func() {
err := lock.Unlock()
if err != nil && err != zk.ErrNoNode {
log.ErrorErrorf(err, "unlock node failed")
}
}()
// check group exists first
serverGroup := models.NewServerGroup(globalEnv.ProductName(), groupId)
exists, err := serverGroup.Exists(safeZkConn)
if err != nil {
log.ErrorErrorf(err, "check group exits failed")
return 500, err.Error()
}
// create new group if not exists
if !exists {
if err := serverGroup.Create(safeZkConn); err != nil {
return 500, err.Error()
}
}
if err := serverGroup.AddServer(safeZkConn, &server, globalEnv.Password()); err != nil {
log.ErrorErrorf(err, "add server to group failed")
return 500, err.Error()
}
return jsonRetSucc()
}
// create new server group
func apiAddServerGroup(newGroup models.ServerGroup) (int, string) {
lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
if err := lock.LockWithTimeout(0, fmt.Sprintf("add group %+v", newGroup)); err != nil {
return 500, err.Error()
}
defer func() {
err := lock.Unlock()
if err != nil && err != zk.ErrNoNode {
log.ErrorErrorf(err, "unlock node failed")
}
}()
newGroup.ProductName = globalEnv.ProductName()
exists, err := newGroup.Exists(safeZkConn)
if err != nil {
log.ErrorErrorf(err, "check group exits failed")
return 500, err.Error()
}
if exists {
return 500, "group already exists"
}
err = newGroup.Create(safeZkConn)
if err != nil {
log.ErrorErrorf(err, "create node for new group failed")
return 500, err.Error()
}
return jsonRetSucc()
}
func TestForceRemoveLock(t *testing.T) {
fakeZkConn := zkhelper.NewConn()
zkLock := utils.GetZkLock(fakeZkConn, productName)
assert.Must(zkLock != nil)
zkLock.Lock("force remove lock")
zkPath := fmt.Sprintf("/zk/codis/db_%s/LOCK", productName)
children, _, err := fakeZkConn.Children(zkPath)
assert.MustNoError(err)
assert.Must(len(children) != 0)
ForceRemoveLock(fakeZkConn, productName)
children, _, err = fakeZkConn.Children(zkPath)
assert.MustNoError(err)
assert.Must(len(children) == 0)
}
func apiRemoveServerFromGroup(server models.Server, param martini.Params) (int, string) {
groupId, _ := strconv.Atoi(param["id"])
lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
if err := lock.LockWithTimeout(0, fmt.Sprintf("removing server from group, %+v", server)); err != nil {
return 500, err.Error()
}
defer func() {
err := lock.Unlock()
if err != nil && err != zk.ErrNoNode {
log.ErrorErrorf(err, "unlock node failed")
}
}()
serverGroup := models.NewServerGroup(globalEnv.ProductName(), groupId)
err := serverGroup.RemoveServer(safeZkConn, server.Addr)
if err != nil {
log.ErrorErrorf(err, "remove group %d failed", groupId)
return 500, err.Error()
}
return jsonRetSucc()
}
func apiRemoveServerGroup(param martini.Params) (int, string) {
lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
if err := lock.LockWithTimeout(0, fmt.Sprintf("removing group %s", param["id"])); err != nil {
return 500, err.Error()
}
defer func() {
err := lock.Unlock()
if err != nil && err != zk.ErrNoNode {
log.ErrorErrorf(err, "unlock node failed")
}
}()
groupId, _ := strconv.Atoi(param["id"])
serverGroup := models.NewServerGroup(globalEnv.ProductName(), groupId)
if err := serverGroup.Remove(safeZkConn); err != nil {
log.ErrorErrorf(err, "remove server group failed")
return 500, err.Error()
}
return jsonRetSucc()
}