mirror of
https://github.com/yunionio/cloudpods.git
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90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
// Copyright 2019 Yunion
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package splitable
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import (
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"fmt"
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"sync"
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"time"
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"yunion.io/x/log"
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"yunion.io/x/pkg/errors"
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"yunion.io/x/pkg/utils"
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)
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var (
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splitableManager sync.Map
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)
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func registerSplitable(splitable *SSplitTableSpec) {
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splitableManager.Store(splitable.Name(), splitable)
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}
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func PurgeAll() error {
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errs := make([]error, 0)
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splitableManager.Range(func(k, v interface{}) bool {
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log.Infof("purge splitable %s", k)
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_, err := v.(*SSplitTableSpec).Purge(nil)
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if err != nil {
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errs = append(errs, err)
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}
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return true
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})
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return errors.NewAggregate(errs)
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}
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func (t *SSplitTableSpec) Purge(tables []string) ([]string, error) {
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if t.maxSegments <= 0 {
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return nil, nil
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}
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metas, err := t.GetTableMetas()
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if err != nil {
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return nil, errors.Wrap(err, "GetTableMetas")
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}
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if t.maxSegments >= len(metas) && len(tables) == 0 {
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return nil, nil
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}
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metaMax := len(metas)
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if len(tables) == 0 {
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// keep maxSegments if no table specified
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metaMax -= t.maxSegments
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} else {
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// cannot delete the last one
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metaMax -= 1
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}
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ret := []string{}
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for i := 0; i < metaMax; i += 1 {
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if len(tables) == 0 || utils.IsInStringArray(metas[i].Table, tables) {
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dropSQL := fmt.Sprintf("DROP TABLE `%s`", metas[i].Table)
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log.Infof("Ready to drop table: %s", dropSQL)
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tblSpec := t.GetTableSpec(metas[i])
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err := tblSpec.Drop()
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if err != nil {
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return ret, errors.Wrap(err, "sqlchemy.Exec")
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}
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_, err = t.metaSpec.Update(&metas[i], func() error {
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metas[i].DeleteAt = time.Now()
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metas[i].Deleted = true
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return nil
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})
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if err != nil {
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return ret, errors.Wrap(err, "metaSpec.Update")
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}
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ret = append(ret, metas[i].Table)
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}
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}
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return ret, nil
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}
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