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137 lines
3.4 KiB
137 lines
3.4 KiB
/*
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* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
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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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*/
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package cmd
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import (
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"context"
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"time"
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"github.com/minio/minio/cmd/logger"
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"github.com/minio/minio/pkg/bucket/lifecycle"
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"github.com/minio/minio/pkg/event"
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)
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const (
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bgLifecycleInterval = 24 * time.Hour
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bgLifecycleTick = time.Hour
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)
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// initDailyLifecycle starts the routine that receives the daily
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// listing of all objects and applies any matching bucket lifecycle
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// rules.
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func initDailyLifecycle(ctx context.Context, objAPI ObjectLayer) {
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go startDailyLifecycle(ctx, objAPI)
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}
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func startDailyLifecycle(ctx context.Context, objAPI ObjectLayer) {
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for {
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select {
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case <-ctx.Done():
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return
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case <-time.NewTimer(bgLifecycleInterval).C:
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// Perform one lifecycle operation
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err := lifecycleRound(ctx, objAPI)
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switch err.(type) {
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case OperationTimedOut:
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// Unable to hold a lock means there is another
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// caller holding write lock, ignore and try next round.
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continue
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default:
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logger.LogIf(ctx, err)
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}
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}
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}
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}
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var lifecycleLockTimeout = newDynamicTimeout(60*time.Second, time.Second)
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func lifecycleRound(ctx context.Context, objAPI ObjectLayer) error {
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buckets, err := objAPI.ListBuckets(ctx)
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if err != nil {
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return err
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}
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for _, bucket := range buckets {
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// Check if the current bucket has a configured lifecycle policy, skip otherwise
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l, ok := globalLifecycleSys.Get(bucket.Name)
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if !ok {
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continue
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}
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// Calculate the common prefix of all lifecycle rules
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var prefixes []string
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for _, rule := range l.Rules {
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prefixes = append(prefixes, rule.Prefix())
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}
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commonPrefix := lcp(prefixes)
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// Allocate new results channel to receive ObjectInfo.
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objInfoCh := make(chan ObjectInfo)
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// Walk through all objects
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if err := objAPI.Walk(ctx, bucket.Name, commonPrefix, objInfoCh); err != nil {
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return err
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}
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for {
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var objects []string
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for obj := range objInfoCh {
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if len(objects) == maxObjectList {
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// Reached maximum delete requests, attempt a delete for now.
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break
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}
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// Find the action that need to be executed
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if l.ComputeAction(obj.Name, obj.UserTags, obj.ModTime) == lifecycle.DeleteAction {
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objects = append(objects, obj.Name)
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}
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}
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// Nothing to do.
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if len(objects) == 0 {
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break
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}
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waitForLowHTTPReq(int32(globalEndpoints.NEndpoints()))
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// Deletes a list of objects.
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deleteErrs, err := objAPI.DeleteObjects(ctx, bucket.Name, objects)
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if err != nil {
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logger.LogIf(ctx, err)
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} else {
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for i := range deleteErrs {
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if deleteErrs[i] != nil {
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logger.LogIf(ctx, deleteErrs[i])
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continue
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}
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// Notify object deleted event.
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sendEvent(eventArgs{
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EventName: event.ObjectRemovedDelete,
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BucketName: bucket.Name,
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Object: ObjectInfo{
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Name: objects[i],
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},
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Host: "Internal: [ILM-EXPIRY]",
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})
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}
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}
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}
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}
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return nil
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}
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