forked from CodisLabs/codis
/
topom_proxy.go
171 lines (150 loc) · 4.07 KB
/
topom_proxy.go
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// Copyright 2016 CodisLabs. All Rights Reserved.
// Licensed under the MIT (MIT-LICENSE.txt) license.
package topom
import (
"github.com/CodisLabs/codis/pkg/models"
"github.com/CodisLabs/codis/pkg/proxy"
"github.com/CodisLabs/codis/pkg/utils/errors"
"github.com/CodisLabs/codis/pkg/utils/log"
"github.com/CodisLabs/codis/pkg/utils/sync2"
)
func (s *Topom) CreateProxy(addr string) error {
s.mu.Lock()
defer s.mu.Unlock()
ctx, err := s.newContext()
if err != nil {
return err
}
p, err := proxy.NewApiClient(addr).Model()
if err != nil {
return errors.Errorf("proxy@%s fetch model failed, %s", addr, err)
}
c := s.newProxyClient(p)
if err := c.XPing(); err != nil {
return errors.Errorf("proxy@%s check xauth failed, %s", addr, err)
}
if ctx.proxy[p.Token] != nil {
return errors.Errorf("proxy-[%s] already exists", p.Token)
} else {
p.Id = ctx.maxProxyId() + 1
}
defer s.dirtyProxyCache(p.Token)
if err := s.storeCreateProxy(p); err != nil {
return err
} else {
return s.reinitProxy(ctx, p, c)
}
}
func (s *Topom) OnlineProxy(addr string) error {
s.mu.Lock()
defer s.mu.Unlock()
ctx, err := s.newContext()
if err != nil {
return err
}
p, err := proxy.NewApiClient(addr).Model()
if err != nil {
return errors.Errorf("proxy@%s fetch model failed", addr)
}
c := s.newProxyClient(p)
if err := c.XPing(); err != nil {
return errors.Errorf("proxy@%s check xauth failed", addr)
}
defer s.dirtyProxyCache(p.Token)
if d := ctx.proxy[p.Token]; d != nil {
p.Id = d.Id
if err := s.storeUpdateProxy(p); err != nil {
return err
}
} else {
p.Id = ctx.maxProxyId() + 1
if err := s.storeCreateProxy(p); err != nil {
return err
}
}
return s.reinitProxy(ctx, p, c)
}
func (s *Topom) RemoveProxy(token string, force bool) error {
s.mu.Lock()
defer s.mu.Unlock()
ctx, err := s.newContext()
if err != nil {
return err
}
p, err := ctx.getProxy(token)
if err != nil {
return err
}
c := s.newProxyClient(p)
if err := c.Shutdown(); err != nil {
log.WarnErrorf(err, "proxy-[%s] shutdown failed, force remove = %t", token, force)
if !force {
return errors.Errorf("proxy-[%s] shutdown failed", p.Token)
}
}
defer s.dirtyProxyCache(p.Token)
return s.storeRemoveProxy(p)
}
func (s *Topom) ReinitProxy(token string) error {
s.mu.Lock()
defer s.mu.Unlock()
ctx, err := s.newContext()
if err != nil {
return err
}
p, err := ctx.getProxy(token)
if err != nil {
return err
}
c := s.newProxyClient(p)
return s.reinitProxy(ctx, p, c)
}
func (s *Topom) newProxyClient(p *models.Proxy) *proxy.ApiClient {
c := proxy.NewApiClient(p.AdminAddr)
c.SetXAuth(s.config.ProductName, s.config.ProductAuth, p.Token)
return c
}
func (s *Topom) reinitProxy(ctx *context, p *models.Proxy, c *proxy.ApiClient) error {
log.Warnf("proxy-[%s] reinit:\n%s", p.Token, p.Encode())
if err := c.FillSlots(ctx.toSlotSlice(ctx.slots, p)...); err != nil {
log.ErrorErrorf(err, "proxy-[%s] fillslots failed", p.Token)
return errors.Errorf("proxy-[%s] fillslots failed", p.Token)
}
if err := c.Start(); err != nil {
log.ErrorErrorf(err, "proxy-[%s] start failed", p.Token)
return errors.Errorf("proxy-[%s] start failed", p.Token)
}
if err := c.SetSentinels(ctx.sentinel); err != nil {
log.ErrorErrorf(err, "proxy-[%s] set sentinels failed", p.Token)
return errors.Errorf("proxy-[%s] set sentinels failed", p.Token)
}
return nil
}
func (s *Topom) resyncSlotMappingsByGroupId(ctx *context, gid int) error {
return s.resyncSlotMappings(ctx, ctx.getSlotMappingsByGroupId(gid)...)
}
func (s *Topom) resyncSlotMappings(ctx *context, slots ...*models.SlotMapping) error {
if len(slots) == 0 {
return nil
}
var fut sync2.Future
for _, p := range ctx.proxy {
fut.Add()
go func(p *models.Proxy) {
err := s.newProxyClient(p).FillSlots(ctx.toSlotSlice(slots, p)...)
if err != nil {
log.ErrorErrorf(err, "proxy-[%s] resync slots failed", p.Token)
}
fut.Done(p.Token, err)
}(p)
}
for t, v := range fut.Wait() {
switch err := v.(type) {
case error:
if err != nil {
return errors.Errorf("proxy-[%s] resync slots failed", t)
}
}
}
return nil
}