mirror of
https://github.com/minio/minio.git
synced 2025-11-04 10:11:09 +01:00
822eb5ddc7
This PR refactors object layer handling such that upon failure in sub-system initialization server reaches a stage of safe-mode operation wherein only certain API operations are enabled and available. This allows for fixing many scenarios such as - incorrect configuration in vault, etcd, notification targets - missing files, incomplete config migrations unable to read encrypted content etc - any other issues related to notification, policies, lifecycle etc
120 lines
2.9 KiB
Go
120 lines
2.9 KiB
Go
/*
|
|
* MinIO Cloud Storage, (C) 2019 MinIO, 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 cmd
|
|
|
|
import (
|
|
"context"
|
|
"time"
|
|
|
|
"github.com/minio/minio/cmd/logger"
|
|
)
|
|
|
|
const defaultMonitorNewDiskInterval = time.Minute * 10
|
|
|
|
func initLocalDisksAutoHeal() {
|
|
go monitorLocalDisksAndHeal()
|
|
}
|
|
|
|
// monitorLocalDisksAndHeal - ensures that detected new disks are healed
|
|
// 1. Only the concerned erasure set will be listed and healed
|
|
// 2. Only the node hosting the disk is responsible to perform the heal
|
|
func monitorLocalDisksAndHeal() {
|
|
// Wait until the object layer is ready
|
|
var objAPI ObjectLayer
|
|
for {
|
|
objAPI = newObjectLayerWithoutSafeModeFn()
|
|
if objAPI == nil {
|
|
time.Sleep(time.Second)
|
|
continue
|
|
}
|
|
break
|
|
}
|
|
|
|
sets, ok := objAPI.(*xlSets)
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
ctx := context.Background()
|
|
|
|
var bgSeq *healSequence
|
|
var found bool
|
|
|
|
for {
|
|
bgSeq, found = globalBackgroundHealState.getHealSequenceByToken(bgHealingUUID)
|
|
if found {
|
|
break
|
|
}
|
|
time.Sleep(time.Second)
|
|
}
|
|
|
|
// Perform automatic disk healing when a new one is inserted
|
|
for {
|
|
time.Sleep(defaultMonitorNewDiskInterval)
|
|
|
|
localDisksToHeal := []Endpoint{}
|
|
for _, endpoint := range globalEndpoints {
|
|
if !endpoint.IsLocal {
|
|
continue
|
|
}
|
|
// Try to connect to the current endpoint
|
|
// and reformat if the current disk is not formatted
|
|
_, _, err := connectEndpoint(endpoint)
|
|
if err == errUnformattedDisk {
|
|
localDisksToHeal = append(localDisksToHeal, endpoint)
|
|
}
|
|
}
|
|
|
|
if len(localDisksToHeal) == 0 {
|
|
continue
|
|
}
|
|
|
|
// Reformat disks
|
|
bgSeq.sourceCh <- SlashSeparator
|
|
// Ensure that reformatting disks is finished
|
|
bgSeq.sourceCh <- nopHeal
|
|
|
|
// Compute the list of erasure set to heal
|
|
var erasureSetToHeal []int
|
|
for _, endpoint := range localDisksToHeal {
|
|
// Load the new format of this passed endpoint
|
|
_, format, err := connectEndpoint(endpoint)
|
|
if err != nil {
|
|
logger.LogIf(ctx, err)
|
|
continue
|
|
}
|
|
// Calculate the set index where the current endpoint belongs
|
|
setIndex, _, err := findDiskIndex(sets.format, format)
|
|
if err != nil {
|
|
logger.LogIf(ctx, err)
|
|
continue
|
|
}
|
|
|
|
erasureSetToHeal = append(erasureSetToHeal, setIndex)
|
|
}
|
|
|
|
// Heal all erasure sets that need
|
|
for _, setIndex := range erasureSetToHeal {
|
|
xlObj := sets.sets[setIndex]
|
|
err := healErasureSet(ctx, setIndex, xlObj)
|
|
if err != nil {
|
|
logger.LogIf(ctx, err)
|
|
}
|
|
}
|
|
}
|
|
}
|