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https://github.com/minio/minio.git
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b3ca304c01
Add better dynamic timeouts for locks, also add jitters before launching daily sweep to ensure that not all the servers in distributed setup are not trying to hold locks to begin the sweep round. Also, add enough delay for incoming requests based on totalSetCount*totalDriveCount. A possible fix for #8071
163 lines
4.1 KiB
Go
163 lines
4.1 KiB
Go
/*
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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/lifecycle"
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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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type lifecycleOps struct {
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LastActivity time.Time
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}
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// Register to the daily objects listing
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var globalLifecycleOps = &lifecycleOps{}
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func getLocalBgLifecycleOpsStatus() BgLifecycleOpsStatus {
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return BgLifecycleOpsStatus{
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LastActivity: globalLifecycleOps.LastActivity,
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}
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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() {
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go startDailyLifecycle()
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}
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func startDailyLifecycle() {
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var objAPI ObjectLayer
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var ctx = context.Background()
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// Wait until the object API is ready
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for {
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objAPI = newObjectLayerFn()
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if objAPI == nil {
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time.Sleep(time.Second)
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continue
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}
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break
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}
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// Calculate the time of the last lifecycle operation in all peers node of the cluster
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computeLastLifecycleActivity := func(status []BgOpsStatus) time.Time {
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var lastAct time.Time
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for _, st := range status {
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if st.LifecycleOps.LastActivity.After(lastAct) {
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lastAct = st.LifecycleOps.LastActivity
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}
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}
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return lastAct
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}
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for {
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// Check if we should perform lifecycle ops based on the last lifecycle activity, sleep one hour otherwise
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allLifecycleStatus := []BgOpsStatus{
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{LifecycleOps: getLocalBgLifecycleOpsStatus()},
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}
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if globalIsDistXL {
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allLifecycleStatus = append(allLifecycleStatus, globalNotificationSys.BackgroundOpsStatus()...)
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}
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lastAct := computeLastLifecycleActivity(allLifecycleStatus)
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if !lastAct.IsZero() && time.Since(lastAct) < bgLifecycleInterval {
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time.Sleep(bgLifecycleTick)
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}
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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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// Unable to hold a lock means there is another
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// instance doing the lifecycle round round
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case OperationTimedOut:
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time.Sleep(bgLifecycleTick)
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default:
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logger.LogIf(ctx, err)
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time.Sleep(time.Minute)
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continue
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}
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}
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}
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var lifecycleTimeout = newDynamicTimeout(60*time.Second, time.Second)
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func lifecycleRound(ctx context.Context, objAPI ObjectLayer) error {
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// Lock to avoid concurrent lifecycle ops from other nodes
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sweepLock := globalNSMutex.NewNSLock(ctx, "system", "daily-lifecycle-ops")
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if err := sweepLock.GetLock(lifecycleTimeout); err != nil {
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return err
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}
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defer sweepLock.Unlock()
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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.Filter.Prefix)
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}
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commonPrefix := lcp(prefixes)
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// List all objects and calculate lifecycle action based on object name & object modtime
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marker := ""
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for {
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res, err := objAPI.ListObjects(ctx, bucket.Name, commonPrefix, marker, "", 1000)
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if err != nil {
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continue
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}
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for _, obj := range res.Objects {
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// Find the action that need to be executed
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action := l.ComputeAction(obj.Name, obj.ModTime)
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switch action {
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case lifecycle.DeleteAction:
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objAPI.DeleteObject(ctx, bucket.Name, obj.Name)
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default:
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// Nothing
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}
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}
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if !res.IsTruncated {
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break
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} else {
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marker = res.NextMarker
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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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