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Add replication capacity metrics support in crawler (#10786)

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This commit is contained in:
Ritesh H Shukla 2020-12-07 13:47:48 -08:00 committed by GitHub
parent 6d70f6a4ac
commit 038bcd9079
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GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 235 additions and 69 deletions
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36
cmd/data-crawler.go
View File

@ -445,16 +445,16 @@ func (f *folderScanner) scanQueuedLevels(ctx context.Context, folders []cachedFo
lifeCycle: activeLifeCycle,
heal: thisHash.mod(f.oldCache.Info.NextCycle, f.healObjectSelect/folder.objectHealProbDiv),
}
size, err := f.getSize(item)
sizeSummary, err := f.getSize(item)
wait()
if err == errSkipFile {
return nil
}
logger.LogIf(ctx, err)
cache.Size += size
cache.addSizes(sizeSummary)
cache.Objects++
cache.ObjSizes.add(size)
cache.ObjSizes.add(sizeSummary.totalSize)
return nil
})
@ -673,7 +673,7 @@ func (f *folderScanner) deepScanFolder(ctx context.Context, folder cachedFolder)
}
}
size, err := f.getSize(
sizeSummary, err := f.getSize(
crawlItem{
Path: fileName,
Typ: typ,
@ -692,9 +692,9 @@ func (f *folderScanner) deepScanFolder(ctx context.Context, folder cachedFolder)
return nil
}
logger.LogIf(ctx, err)
cache.Size += size
cache.addSizes(sizeSummary)
cache.Objects++
cache.ObjSizes.add(size)
cache.ObjSizes.add(sizeSummary.totalSize)
return nil
}
err := readDirFn(path.Join(dirStack...), addDir)
@ -717,7 +717,15 @@ type crawlItem struct {
debug bool
}
type getSizeFn func(item crawlItem) (int64, error)
type sizeSummary struct {
totalSize int64
replicatedSize int64
pendingSize int64
failedSize int64
replicaSize int64
}
type getSizeFn func(item crawlItem) (sizeSummary, error)
// transformMetaDir will transform a directory to prefix/file.ext
func (i *crawlItem) transformMetaDir() {
@ -910,7 +918,7 @@ func (i *crawlItem) objectPath() string {
}
// healReplication will heal a scanned item that has failed replication.
func (i *crawlItem) healReplication(ctx context.Context, o ObjectLayer, meta actionMeta) {
func (i *crawlItem) healReplication(ctx context.Context, o ObjectLayer, meta actionMeta, sizeS *sizeSummary) {
if meta.oi.DeleteMarker || !meta.oi.VersionPurgeStatus.Empty() {
//heal delete marker replication failure or versioned delete replication failure
if meta.oi.ReplicationStatus == replication.Pending ||
@ -920,9 +928,17 @@ func (i *crawlItem) healReplication(ctx context.Context, o ObjectLayer, meta act
return
}
}
if meta.oi.ReplicationStatus == replication.Pending ||
meta.oi.ReplicationStatus == replication.Failed {
switch meta.oi.ReplicationStatus {
case replication.Pending:
sizeS.pendingSize += meta.oi.Size
globalReplicationState.queueReplicaTask(meta.oi)
case replication.Failed:
sizeS.failedSize += meta.oi.Size
globalReplicationState.queueReplicaTask(meta.oi)
case replication.Complete:
sizeS.replicatedSize += meta.oi.Size
case replication.Replica:
sizeS.replicaSize += meta.oi.Size
}
}

62
cmd/data-usage-cache.go
View File

@ -46,11 +46,14 @@ type sizeHistogram [dataUsageBucketLen]uint64
//msgp:tuple dataUsageEntry
type dataUsageEntry struct {
// These fields do no include any children.
Size int64
Objects uint64
ObjSizes sizeHistogram
Children dataUsageHashMap
Size int64
ReplicatedSize uint64
ReplicationPendingSize uint64
ReplicationFailedSize uint64
ReplicaSize uint64
Objects uint64
ObjSizes sizeHistogram
Children dataUsageHashMap
}
// dataUsageCache contains a cache of data usage entries.
@ -76,10 +79,23 @@ type dataUsageCacheInfo struct {
lifeCycle *lifecycle.Lifecycle `msg:"-"`
}
func (e *dataUsageEntry) addSizes(summary sizeSummary) {
e.Size += summary.totalSize
e.ReplicatedSize += uint64(summary.replicatedSize)
e.ReplicationFailedSize += uint64(summary.failedSize)
e.ReplicationPendingSize += uint64(summary.pendingSize)
e.ReplicaSize += uint64(summary.replicaSize)
}
// merge other data usage entry into this, excluding children.
func (e *dataUsageEntry) merge(other dataUsageEntry) {
e.Objects += other.Objects
e.Size += other.Size
e.ReplicationPendingSize += other.ReplicationPendingSize
e.ReplicationFailedSize += other.ReplicationFailedSize
e.ReplicatedSize += other.ReplicatedSize
e.ReplicaSize += other.ReplicaSize
for i, v := range other.ObjSizes[:] {
e.ObjSizes[i] += v
}
@ -213,11 +229,15 @@ func (d *dataUsageCache) dui(path string, buckets []BucketInfo) DataUsageInfo {
}
flat := d.flatten(*e)
return DataUsageInfo{
LastUpdate: d.Info.LastUpdate,
ObjectsTotalCount: flat.Objects,
ObjectsTotalSize: uint64(flat.Size),
BucketsCount: uint64(len(e.Children)),
BucketsUsage: d.bucketsUsageInfo(buckets),
LastUpdate: d.Info.LastUpdate,
ObjectsTotalCount: flat.Objects,
ObjectsTotalSize: uint64(flat.Size),
ReplicatedSize: flat.ReplicatedSize,
ReplicationFailedSize: flat.ReplicationFailedSize,
ReplicationPendingSize: flat.ReplicationPendingSize,
ReplicaSize: flat.ReplicaSize,
BucketsCount: uint64(len(e.Children)),
BucketsUsage: d.bucketsUsageInfo(buckets),
}
}
@ -343,9 +363,13 @@ func (d *dataUsageCache) bucketsUsageInfo(buckets []BucketInfo) map[string]Bucke
}
flat := d.flatten(*e)
dst[bucket.Name] = BucketUsageInfo{
Size: uint64(flat.Size),
ObjectsCount: flat.Objects,
ObjectSizesHistogram: flat.ObjSizes.toMap(),
Size: uint64(flat.Size),
ObjectsCount: flat.Objects,
ReplicationPendingSize: flat.ReplicationPendingSize,
ReplicatedSize: flat.ReplicatedSize,
ReplicationFailedSize: flat.ReplicationFailedSize,
ReplicaSize: flat.ReplicaSize,
ObjectSizesHistogram: flat.ObjSizes.toMap(),
}
}
return dst
@ -360,9 +384,13 @@ func (d *dataUsageCache) bucketUsageInfo(bucket string) BucketUsageInfo {
}
flat := d.flatten(*e)
return BucketUsageInfo{
Size: uint64(flat.Size),
ObjectsCount: flat.Objects,
ObjectSizesHistogram: flat.ObjSizes.toMap(),
Size: uint64(flat.Size),
ObjectsCount: flat.Objects,
ReplicationPendingSize: flat.ReplicationPendingSize,
ReplicatedSize: flat.ReplicatedSize,
ReplicationFailedSize: flat.ReplicationFailedSize,
ReplicaSize: flat.ReplicaSize,
ObjectSizesHistogram: flat.ObjSizes.toMap(),
}
}
@ -482,7 +510,7 @@ func (d *dataUsageCache) save(ctx context.Context, store objectIO, name string)
// dataUsageCacheVer indicates the cache version.
// Bumping the cache version will drop data from previous versions
// and write new data with the new version.
const dataUsageCacheVer = 2
const dataUsageCacheVer = 3
// serialize the contents of the cache.
func (d *dataUsageCache) serialize() []byte {

82
cmd/data-usage-cache_gen.go
View File

@ -492,8 +492,8 @@ func (z *dataUsageEntry) DecodeMsg(dc *msgp.Reader) (err error) {
err = msgp.WrapError(err)
return
}
if zb0001 != 4 {
err = msgp.ArrayError{Wanted: 4, Got: zb0001}
if zb0001 != 8 {
err = msgp.ArrayError{Wanted: 8, Got: zb0001}
return
}
z.Size, err = dc.ReadInt64()
@ -501,6 +501,26 @@ func (z *dataUsageEntry) DecodeMsg(dc *msgp.Reader) (err error) {
err = msgp.WrapError(err, "Size")
return
}
z.ReplicatedSize, err = dc.ReadUint64()
if err != nil {
err = msgp.WrapError(err, "ReplicatedSize")
return
}
z.ReplicationPendingSize, err = dc.ReadUint64()
if err != nil {
err = msgp.WrapError(err, "ReplicationPendingSize")
return
}
z.ReplicationFailedSize, err = dc.ReadUint64()
if err != nil {
err = msgp.WrapError(err, "ReplicationFailedSize")
return
}
z.ReplicaSize, err = dc.ReadUint64()
if err != nil {
err = msgp.WrapError(err, "ReplicaSize")
return
}
z.Objects, err = dc.ReadUint64()
if err != nil {
err = msgp.WrapError(err, "Objects")
@ -533,8 +553,8 @@ func (z *dataUsageEntry) DecodeMsg(dc *msgp.Reader) (err error) {
// EncodeMsg implements msgp.Encodable
func (z *dataUsageEntry) EncodeMsg(en *msgp.Writer) (err error) {
// array header, size 4
err = en.Append(0x94)
// array header, size 8
err = en.Append(0x98)
if err != nil {
return
}
@ -543,6 +563,26 @@ func (z *dataUsageEntry) EncodeMsg(en *msgp.Writer) (err error) {
err = msgp.WrapError(err, "Size")
return
}
err = en.WriteUint64(z.ReplicatedSize)
if err != nil {
err = msgp.WrapError(err, "ReplicatedSize")
return
}
err = en.WriteUint64(z.ReplicationPendingSize)
if err != nil {
err = msgp.WrapError(err, "ReplicationPendingSize")
return
}
err = en.WriteUint64(z.ReplicationFailedSize)
if err != nil {
err = msgp.WrapError(err, "ReplicationFailedSize")
return
}
err = en.WriteUint64(z.ReplicaSize)
if err != nil {
err = msgp.WrapError(err, "ReplicaSize")
return
}
err = en.WriteUint64(z.Objects)
if err != nil {
err = msgp.WrapError(err, "Objects")
@ -571,9 +611,13 @@ func (z *dataUsageEntry) EncodeMsg(en *msgp.Writer) (err error) {
// MarshalMsg implements msgp.Marshaler
func (z *dataUsageEntry) MarshalMsg(b []byte) (o []byte, err error) {
o = msgp.Require(b, z.Msgsize())
// array header, size 4
o = append(o, 0x94)
// array header, size 8
o = append(o, 0x98)
o = msgp.AppendInt64(o, z.Size)
o = msgp.AppendUint64(o, z.ReplicatedSize)
o = msgp.AppendUint64(o, z.ReplicationPendingSize)
o = msgp.AppendUint64(o, z.ReplicationFailedSize)
o = msgp.AppendUint64(o, z.ReplicaSize)
o = msgp.AppendUint64(o, z.Objects)
o = msgp.AppendArrayHeader(o, uint32(dataUsageBucketLen))
for za0001 := range z.ObjSizes {
@ -595,8 +639,8 @@ func (z *dataUsageEntry) UnmarshalMsg(bts []byte) (o []byte, err error) {
err = msgp.WrapError(err)
return
}
if zb0001 != 4 {
err = msgp.ArrayError{Wanted: 4, Got: zb0001}
if zb0001 != 8 {
err = msgp.ArrayError{Wanted: 8, Got: zb0001}
return
}
z.Size, bts, err = msgp.ReadInt64Bytes(bts)
@ -604,6 +648,26 @@ func (z *dataUsageEntry) UnmarshalMsg(bts []byte) (o []byte, err error) {
err = msgp.WrapError(err, "Size")
return
}
z.ReplicatedSize, bts, err = msgp.ReadUint64Bytes(bts)
if err != nil {
err = msgp.WrapError(err, "ReplicatedSize")
return
}
z.ReplicationPendingSize, bts, err = msgp.ReadUint64Bytes(bts)
if err != nil {
err = msgp.WrapError(err, "ReplicationPendingSize")
return
}
z.ReplicationFailedSize, bts, err = msgp.ReadUint64Bytes(bts)
if err != nil {
err = msgp.WrapError(err, "ReplicationFailedSize")
return
}
z.ReplicaSize, bts, err = msgp.ReadUint64Bytes(bts)
if err != nil {
err = msgp.WrapError(err, "ReplicaSize")
return
}
z.Objects, bts, err = msgp.ReadUint64Bytes(bts)
if err != nil {
err = msgp.WrapError(err, "Objects")
@ -637,7 +701,7 @@ func (z *dataUsageEntry) UnmarshalMsg(bts []byte) (o []byte, err error) {
// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
func (z *dataUsageEntry) Msgsize() (s int) {
s = 1 + msgp.Int64Size + msgp.Uint64Size + msgp.ArrayHeaderSize + (dataUsageBucketLen * (msgp.Uint64Size)) + z.Children.Msgsize()
s = 1 + msgp.Int64Size + msgp.Uint64Size + msgp.Uint64Size + msgp.Uint64Size + msgp.Uint64Size + msgp.Uint64Size + msgp.ArrayHeaderSize + (dataUsageBucketLen * (msgp.Uint64Size)) + z.Children.Msgsize()
return
}

5
cmd/data-usage.go
View File

@ -39,8 +39,8 @@ const (
)
// storeDataUsageInBackend will store all objects sent on the gui channel until closed.
func storeDataUsageInBackend(ctx context.Context, objAPI ObjectLayer, gui <-chan DataUsageInfo) {
for dataUsageInfo := range gui {
func storeDataUsageInBackend(ctx context.Context, objAPI ObjectLayer, dui <-chan DataUsageInfo) {
for dataUsageInfo := range dui {
dataUsageJSON, err := json.Marshal(dataUsageInfo)
if err != nil {
logger.LogIf(ctx, err)
@ -52,7 +52,6 @@ func storeDataUsageInBackend(ctx context.Context, objAPI ObjectLayer, gui <-chan
logger.LogIf(ctx, err)
continue
}
_, err = objAPI.PutObject(ctx, dataUsageBucket, dataUsageObjName, NewPutObjReader(r, nil, nil), ObjectOptions{})
if !isErrBucketNotFound(err) {
logger.LogIf(ctx, err)

36
cmd/data-usage_test.go
View File

@ -51,15 +51,17 @@ func TestDataUsageUpdate(t *testing.T) {
}
createUsageTestFiles(t, base, bucket, files)
getSize := func(item crawlItem) (i int64, err error) {
getSize := func(item crawlItem) (sizeS sizeSummary, err error) {
if item.Typ&os.ModeDir == 0 {
s, err := os.Stat(item.Path)
var s os.FileInfo
s, err = os.Stat(item.Path)
if err != nil {
return 0, err
return
}
return s.Size(), nil
sizeS.totalSize = s.Size()
return sizeS, nil
}
return 0, nil
return
}
got, err := crawlDataFolder(context.Background(), base, dataUsageCache{Info: dataUsageCacheInfo{Name: bucket}}, getSize)
@ -345,15 +347,17 @@ func TestDataUsageUpdatePrefix(t *testing.T) {
}
createUsageTestFiles(t, base, "", files)
getSize := func(item crawlItem) (i int64, err error) {
getSize := func(item crawlItem) (sizeS sizeSummary, err error) {
if item.Typ&os.ModeDir == 0 {
s, err := os.Stat(item.Path)
var s os.FileInfo
s, err = os.Stat(item.Path)
if err != nil {
return 0, err
return
}
return s.Size(), nil
sizeS.totalSize = s.Size()
return
}
return 0, nil
return
}
got, err := crawlDataFolder(context.Background(), base, dataUsageCache{Info: dataUsageCacheInfo{Name: "bucket"}}, getSize)
if err != nil {
@ -642,15 +646,17 @@ func TestDataUsageCacheSerialize(t *testing.T) {
}
createUsageTestFiles(t, base, bucket, files)
getSize := func(item crawlItem) (i int64, err error) {
getSize := func(item crawlItem) (sizeS sizeSummary, err error) {
if item.Typ&os.ModeDir == 0 {
s, err := os.Stat(item.Path)
var s os.FileInfo
s, err = os.Stat(item.Path)
if err != nil {
return 0, err
return
}
return s.Size(), nil
sizeS.totalSize = s.Size()
return
}
return 0, nil
return
}
want, err := crawlDataFolder(context.Background(), base, dataUsageCache{Info: dataUsageCacheInfo{Name: bucket}}, getSize)
if err != nil {

10
cmd/fs-v1.go
View File

@ -317,11 +317,11 @@ func (fs *FSObjects) crawlBucket(ctx context.Context, bucket string, cache dataU
}
// Load bucket info.
cache, err = crawlDataFolder(ctx, fs.fsPath, cache, func(item crawlItem) (int64, error) {
cache, err = crawlDataFolder(ctx, fs.fsPath, cache, func(item crawlItem) (sizeSummary, error) {
bucket, object := item.bucket, item.objectPath()
fsMetaBytes, err := ioutil.ReadFile(pathJoin(fs.fsPath, minioMetaBucket, bucketMetaPrefix, bucket, object, fs.metaJSONFile))
if err != nil && !osIsNotExist(err) {
return 0, errSkipFile
return sizeSummary{}, errSkipFile
}
fsMeta := newFSMetaV1()
@ -339,7 +339,7 @@ func (fs *FSObjects) crawlBucket(ctx context.Context, bucket string, cache dataU
// Stat the file.
fi, fiErr := os.Stat(item.Path)
if fiErr != nil {
return 0, errSkipFile
return sizeSummary{}, errSkipFile
}
// We cannot heal in FS mode.
item.heal = false
@ -347,10 +347,10 @@ func (fs *FSObjects) crawlBucket(ctx context.Context, bucket string, cache dataU
oi := fsMeta.ToObjectInfo(bucket, object, fi)
sz := item.applyActions(ctx, fs, actionMeta{oi: oi})
if sz >= 0 {
return sz, nil
return sizeSummary{totalSize: sz}, nil
}
return fi.Size(), nil
return sizeSummary{totalSize: fi.Size()}, nil
})
return cache, err

36
cmd/metrics.go
View File

@ -417,6 +417,42 @@ func bucketUsageMetricsPrometheus(ch chan<- prometheus.Metric) {
float64(usageInfo.ObjectsCount),
bucket,
)
ch <- prometheus.MustNewConstMetric(
prometheus.NewDesc(
prometheus.BuildFQName("bucket", "replication", "pending_size"),
"Total capacity pending to be replicated",
[]string{"bucket"}, nil),
prometheus.GaugeValue,
float64(usageInfo.ReplicationPendingSize),
bucket,
)
ch <- prometheus.MustNewConstMetric(
prometheus.NewDesc(
prometheus.BuildFQName("bucket", "replication", "failed_size"),
"Total capacity failed to replicate at least once",
[]string{"bucket"}, nil),
prometheus.GaugeValue,
float64(usageInfo.ReplicationFailedSize),
bucket,
)
ch <- prometheus.MustNewConstMetric(
prometheus.NewDesc(
prometheus.BuildFQName("bucket", "replication", "successful_size"),
"Total capacity replicated to destination",
[]string{"bucket"}, nil),
prometheus.GaugeValue,
float64(usageInfo.ReplicatedSize),
bucket,
)
ch <- prometheus.MustNewConstMetric(
prometheus.NewDesc(
prometheus.BuildFQName("bucket", "replication", "received_size"),
"Total capacity replicated to this instance",
[]string{"bucket"}, nil),
prometheus.GaugeValue,
float64(usageInfo.ReplicaSize),
bucket,
)
for k, v := range usageInfo.ObjectSizesHistogram {
ch <- prometheus.MustNewConstMetric(
prometheus.NewDesc(

22
cmd/object-api-datatypes.go
View File

@ -93,9 +93,13 @@ var ObjectsHistogramIntervals = []objectHistogramInterval{
// - total objects in a bucket
// - object size histogram per bucket
type BucketUsageInfo struct {
Size uint64 `json:"size"`
ObjectsCount uint64 `json:"objectsCount"`
ObjectSizesHistogram map[string]uint64 `json:"objectsSizesHistogram"`
Size uint64 `json:"size"`
ReplicationPendingSize uint64 `json:"objectsPendingReplicationTotalSize"`
ReplicationFailedSize uint64 `json:"objectsFailedReplicationTotalSize"`
ReplicatedSize uint64 `json:"objectsReplicatedTotalSize"`
ReplicaSize uint64 `json:"objectReplicaTotalSize"`
ObjectsCount uint64 `json:"objectsCount"`
ObjectSizesHistogram map[string]uint64 `json:"objectsSizesHistogram"`
}
// DataUsageInfo represents data usage stats of the underlying Object API
@ -110,6 +114,18 @@ type DataUsageInfo struct {
// Objects total size across all buckets
ObjectsTotalSize uint64 `json:"objectsTotalSize"`
// Total Size for objects that have not yet been replicated
ReplicationPendingSize uint64 `json:"objectsPendingReplicationTotalSize"`
// Total size for objects that have witness one or more failures and will be retried
ReplicationFailedSize uint64 `json:"objectsFailedReplicationTotalSize"`
// Total size for objects that have been replicated to destination
ReplicatedSize uint64 `json:"objectsReplicatedTotalSize"`
// Total size for objects that are replicas
ReplicaSize uint64 `json:"objectsReplicaTotalSize"`
// Total number of buckets in this cluster
BucketsCount uint64 `json:"bucketsCount"`

1
cmd/storage-rest-server.go
View File

@ -173,7 +173,6 @@ func (s *storageRESTServer) CrawlAndGetDataUsageHandler(w http.ResponseWriter, r
done := keepHTTPResponseAlive(w)
usageInfo, err := s.storage.CrawlAndGetDataUsage(r.Context(), cache)
done(err)
if err != nil {
return

14
cmd/xl-storage.go
View File

@ -341,17 +341,17 @@ func (s *xlStorage) CrawlAndGetDataUsage(ctx context.Context, cache dataUsageCac
healOpts := globalHealConfig
globalHealConfigMu.Unlock()
dataUsageInfo, err := crawlDataFolder(ctx, s.diskPath, cache, func(item crawlItem) (int64, error) {
dataUsageInfo, err := crawlDataFolder(ctx, s.diskPath, cache, func(item crawlItem) (sizeSummary, error) {
// Look for `xl.meta/xl.json' at the leaf.
if !strings.HasSuffix(item.Path, SlashSeparator+xlStorageFormatFile) &&
!strings.HasSuffix(item.Path, SlashSeparator+xlStorageFormatFileV1) {
// if no xl.meta/xl.json found, skip the file.
return 0, errSkipFile
return sizeSummary{}, errSkipFile
}
buf, err := ioutil.ReadFile(item.Path)
if err != nil {
return 0, errSkipFile
return sizeSummary{}, errSkipFile
}
// Remove filename which is the meta file.
@ -359,12 +359,13 @@ func (s *xlStorage) CrawlAndGetDataUsage(ctx context.Context, cache dataUsageCac
fivs, err := getFileInfoVersions(buf, item.bucket, item.objectPath())
if err != nil {
return 0, errSkipFile
return sizeSummary{}, errSkipFile
}
var totalSize int64
var numVersions = len(fivs.Versions)
sizeS := sizeSummary{}
for i, version := range fivs.Versions {
var successorModTime time.Time
if i > 0 {
@ -395,9 +396,10 @@ func (s *xlStorage) CrawlAndGetDataUsage(ctx context.Context, cache dataUsageCac
}
totalSize += size
}
item.healReplication(ctx, objAPI, actionMeta{oi: version.ToObjectInfo(item.bucket, item.objectPath())})
item.healReplication(ctx, objAPI, actionMeta{oi: version.ToObjectInfo(item.bucket, item.objectPath())}, &sizeS)
}
return totalSize, nil
sizeS.totalSize = totalSize
return sizeS, nil
})
if err != nil {