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fix: decommission bugfixes found during migration of .minio.sys/config (#14078)

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This commit is contained in:
Harshavardhana 2022-01-10 17:26:00 -08:00 committed by GitHub
parent 3bd9636a5b
commit 737a3f0bad
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 70 additions and 24 deletions
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12
cmd/admin-handler-utils.go
View File

@ -90,6 +90,18 @@ func toAdminAPIErr(ctx context.Context, err error) APIError {
apiErr = errorCodes.ToAPIErrWithErr(e.Code, e.Cause)
default:
switch {
case errors.Is(err, errDecommissionAlreadyRunning):
apiErr = APIError{
Code: "XMinioDecommissionNotAllowed",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, errDecommissionComplete):
apiErr = APIError{
Code: "XMinioDecommissionNotAllowed",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, errConfigNotFound):
apiErr = APIError{
Code: "XMinioConfigError",

58
cmd/erasure-server-pool-decom.go
View File

@ -31,6 +31,7 @@ import (
"github.com/minio/minio/internal/config/storageclass"
"github.com/minio/minio/internal/hash"
"github.com/minio/minio/internal/logger"
"github.com/minio/pkg/console"
)
// PoolDecommissionInfo currently decommissioning information
@ -67,12 +68,20 @@ func (pd *PoolDecommissionInfo) bucketPop(bucket string) {
if b == bucket {
// Bucket is done.
pd.QueuedBuckets = append(pd.QueuedBuckets[:i], pd.QueuedBuckets[i+1:]...)
// Clear tracker info.
if pd.Bucket == bucket {
pd.Bucket = "" // empty this out for next bucket
pd.Object = "" // empty this out for next object
}
return
}
}
}
func (pd *PoolDecommissionInfo) bucketsToDecommission() []string {
return pd.QueuedBuckets
queuedBuckets := make([]string, len(pd.QueuedBuckets))
copy(queuedBuckets, pd.QueuedBuckets)
return queuedBuckets
}
func (pd *PoolDecommissionInfo) isBucketDecommissioned(bucket string) bool {
@ -94,6 +103,7 @@ func (pd *PoolDecommissionInfo) bucketPush(bucket string) {
}
}
pd.QueuedBuckets = append(pd.QueuedBuckets, bucket)
pd.Bucket = bucket
}
// PoolStatus captures current pool status
@ -271,7 +281,7 @@ func (p poolMeta) IsSuspended(idx int) bool {
return p.Pools[idx].Decommission != nil
}
func (p *poolMeta) load(ctx context.Context, pool *erasureSets, pools []*erasureSets) (bool, error) {
func (p *poolMeta) load(ctx context.Context, pool *erasureSets, pools []*erasureSets, validate bool) (bool, error) {
data, err := readConfig(ctx, pool, poolMetaName)
if err != nil {
if errors.Is(err, errConfigNotFound) || isErrObjectNotFound(err) {
@ -308,6 +318,11 @@ func (p *poolMeta) load(ctx context.Context, pool *erasureSets, pools []*erasure
return false, fmt.Errorf("unexpected pool meta version: %d", p.Version)
}
if !validate {
// No further validation requested.
return false, nil
}
type poolInfo struct {
position int
completed bool
@ -423,7 +438,7 @@ const (
func (z *erasureServerPools) Init(ctx context.Context) error {
meta := poolMeta{}
update, err := meta.load(ctx, z.serverPools[0], z.serverPools)
update, err := meta.load(ctx, z.serverPools[0], z.serverPools, true)
if err != nil {
return err
}
@ -471,8 +486,7 @@ func (z *erasureServerPools) decommissionObject(ctx context.Context, bucket stri
defer gr.Close()
objInfo := gr.ObjInfo
if objInfo.isMultipart() {
uploadID, err := z.NewMultipartUpload(ctx, bucket, objInfo.Name,
ObjectOptions{
uploadID, err := z.NewMultipartUpload(ctx, bucket, objInfo.Name, ObjectOptions{
VersionID: objInfo.VersionID,
MTime: objInfo.ModTime,
UserDefined: objInfo.UserDefined,
@ -481,23 +495,23 @@ func (z *erasureServerPools) decommissionObject(ctx context.Context, bucket stri
return err
}
defer z.AbortMultipartUpload(ctx, bucket, objInfo.Name, uploadID, ObjectOptions{})
parts := make([]CompletePart, 0, len(objInfo.Parts))
for _, part := range objInfo.Parts {
parts := make([]CompletePart, len(objInfo.Parts))
for i, part := range objInfo.Parts {
hr, err := hash.NewReader(gr, part.Size, "", "", part.Size)
if err != nil {
return err
}
_, err = z.PutObjectPart(ctx, bucket, objInfo.Name, uploadID,
pi, err := z.PutObjectPart(ctx, bucket, objInfo.Name, uploadID,
part.Number,
NewPutObjReader(hr),
ObjectOptions{})
if err != nil {
return err
}
parts = append(parts, CompletePart{
PartNumber: part.Number,
ETag: part.ETag,
})
parts[i] = CompletePart{
ETag: pi.ETag,
PartNumber: pi.PartNumber,
}
}
_, err = z.CompleteMultipartUpload(ctx, bucket, objInfo.Name, uploadID, parts, ObjectOptions{
MTime: objInfo.ModTime,
@ -534,11 +548,9 @@ func (z *erasureServerPools) decommissionPool(ctx context.Context, idx int, pool
var forwardTo string
// If we resume to the same bucket, forward to last known item.
rbucket, robject := z.poolMeta.ResumeBucketObject(idx)
if rbucket != "" {
if rbucket == bName {
if rbucket != "" && rbucket == bName {
forwardTo = robject
}
}
versioned := globalBucketVersioningSys.Enabled(bName)
for _, set := range pool.sets {
@ -676,12 +688,19 @@ func (z *erasureServerPools) decommissionInBackground(ctx context.Context, idx i
pool := z.serverPools[idx]
for _, bucket := range z.poolMeta.PendingBuckets(idx) {
if z.poolMeta.isBucketDecommissioned(idx, bucket) {
if serverDebugLog {
console.Debugln("decommission: already done, moving on", bucket)
}
z.poolMetaMutex.Lock()
z.poolMeta.BucketDone(idx, bucket) // remove from pendingBuckets and persist.
z.poolMeta.save(ctx, z.serverPools)
z.poolMetaMutex.Unlock()
continue
}
if serverDebugLog {
console.Debugln("decommission: currently on bucket", bucket)
}
if err := z.decommissionPool(ctx, idx, pool, bucket); err != nil {
return err
}
@ -756,14 +775,16 @@ func (z *erasureServerPools) Status(ctx context.Context, idx int) (PoolStatus, e
info.Backend.RRSCParity = rrSCParity
currentSize := TotalUsableCapacityFree(info)
totalSize := TotalUsableCapacity(info)
poolInfo := z.poolMeta.Pools[idx]
if poolInfo.Decommission != nil {
poolInfo.Decommission.TotalSize = totalSize
poolInfo.Decommission.CurrentSize = currentSize
} else {
poolInfo.Decommission = &PoolDecommissionInfo{
CurrentSize: currentSize,
TotalSize: TotalUsableCapacity(info),
TotalSize: totalSize,
}
}
return poolInfo, nil
@ -772,7 +793,7 @@ func (z *erasureServerPools) Status(ctx context.Context, idx int) (PoolStatus, e
func (z *erasureServerPools) ReloadPoolMeta(ctx context.Context) (err error) {
meta := poolMeta{}
if _, err = meta.load(ctx, z.serverPools[0], z.serverPools); err != nil {
if _, err = meta.load(ctx, z.serverPools[0], z.serverPools, false); err != nil {
return err
}
@ -875,7 +896,8 @@ func (z *erasureServerPools) StartDecommission(ctx context.Context, idx int) (er
// sure to decommission the necessary metadata.
buckets = append(buckets, BucketInfo{
Name: pathJoin(minioMetaBucket, minioConfigPrefix),
}, BucketInfo{
})
buckets = append(buckets, BucketInfo{
Name: pathJoin(minioMetaBucket, bucketMetaPrefix),
})

11
cmd/format-erasure.go
View File

@ -896,8 +896,17 @@ func makeFormatErasureMetaVolumes(disk StorageAPI) error {
if disk == nil {
return errDiskNotFound
}
volumes := []string{
minioMetaBucket,
minioMetaTmpBucket,
minioMetaMultipartBucket,
minioMetaTmpDeletedBucket,
dataUsageBucket,
pathJoin(minioMetaBucket, minioConfigPrefix),
minioMetaTmpBucket + "-old",
}
// Attempt to create MinIO internal buckets.
return disk.MakeVolBulk(context.TODO(), minioMetaBucket, minioMetaTmpBucket, minioMetaMultipartBucket, minioMetaTmpDeletedBucket, dataUsageBucket, minioMetaTmpBucket+"-old")
return disk.MakeVolBulk(context.TODO(), volumes...)
}
// Initialize a new set of set formats which will be written to all disks.

3
cmd/xl-storage.go
View File

@ -209,6 +209,9 @@ func (s *xlStorage) Sanitize() error {
return err
}
// Create any missing paths.
makeFormatErasureMetaVolumes(s)
return formatErasureCleanupTmp(s.diskPath)
}