/
provider.go
110 lines (99 loc) · 2.84 KB
/
provider.go
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// Copyright (c) 2021 Terminus, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package synccache
import (
"context"
"time"
"github.com/go-redis/redis"
"github.com/jinzhu/gorm"
"github.com/erda-project/erda-infra/base/logs"
"github.com/erda-project/erda-infra/base/servicehub"
election "github.com/erda-project/erda-infra/providers/etcd-election"
"github.com/erda-project/erda/modules/msp/apm/checker/storage/cache"
"github.com/erda-project/erda/modules/msp/apm/checker/storage/db"
)
type config struct {
CacheKey string `file:"cache_key" default:"checkers"`
DelayOnStart time.Duration `file:"delay_on_start" default:"1m"`
Interval time.Duration `file:"interval" default:"5m"`
}
// +provider
type provider struct {
Cfg *config
Log logs.Logger
Redis *redis.Client `autowired:"redis-client"`
DB *gorm.DB `autowired:"mysql-client"`
Election election.Interface `autowired:"etcd-election"`
checkerDB *db.CheckerDB
cache *cache.Cache
}
func (p *provider) Init(ctx servicehub.Context) error {
p.checkerDB = &db.CheckerDB{DB: p.DB, ScopeInfoUpdateInterval: 3 * p.Cfg.Interval}
p.cache = cache.New(p.Cfg.CacheKey, p.Redis)
p.Election.OnLeader(p.runSycn)
return nil
}
func (p *provider) runSycn(ctx context.Context) {
select {
case <-time.After(p.Cfg.DelayOnStart):
case <-ctx.Done():
return
}
err := p.doSync()
if err != nil {
p.Log.Errorf("fail to sync: %s", err)
}
for {
select {
case <-time.After(p.Cfg.Interval):
err := p.doSync()
if err != nil {
p.Log.Errorf("fail to sync: %s", err)
}
case <-ctx.Done():
return
}
}
}
func (p *provider) doSync() error {
start := time.Now()
checkers, deleted, err := p.checkerDB.FullList()
if err != nil {
return err
}
for _, id := range deleted {
err := p.cache.Remove(id)
if err != nil {
p.Log.Errorf("fail to remove key(%d) from cache: %s", id, err)
}
}
for _, c := range checkers {
err := p.cache.Put(c)
if err != nil {
p.Log.Errorf("fail to put key(%d) into cache: %s", c.Id, err)
}
}
p.Log.Infof("checkers sync finished, duration: %s", time.Now().Sub(start))
return nil
}
func init() {
servicehub.Register("erda.msp.apm.checker.storage.cache.sync", &servicehub.Spec{
ConfigFunc: func() interface{} {
return &config{}
},
Creator: func() servicehub.Provider {
return &provider{}
},
})
}