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ebs br: make snapshot size calculation optional (#5202)
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BornChanger committed Jul 31, 2023
1 parent 899409c commit f0b2058
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Showing 15 changed files with 133 additions and 30 deletions.
3 changes: 2 additions & 1 deletion cmd/backup-manager/app/backup/manager.go
Original file line number Diff line number Diff line change
Expand Up @@ -319,7 +319,7 @@ func (bm *Manager) performBackup(ctx context.Context, backup *v1alpha1.Backup, d
defer func() {
// Calculate the backup size for ebs backup job even if it fails
if bm.Mode == string(v1alpha1.BackupModeVolumeSnapshot) && !bm.Initialize {
fullBackupSize, incrementalBackupSize, err := util.CalcVolSnapBackupSize(ctx, backup.Spec.StorageProvider)
fullBackupSize, incrementalBackupSize, err := util.CalcVolSnapBackupSize(ctx, backup.Spec.StorageProvider, backup.Spec.CalcSizeLevel)
if err != nil {
klog.Errorf("Failed to calc volume snapshot backup, err: %v", err)
return
Expand All @@ -332,6 +332,7 @@ func (bm *Manager) performBackup(ctx context.Context, backup *v1alpha1.Backup, d
BackupSizeReadable: &backupSizeReadable,
IncrementalBackupSize: &incrementalBackupSize,
IncrementalBackupSizeReadable: &incrementalBackupSizeReadable,
TimeCompleted: &metav1.Time{Time: time.Now()},
}

if err := bm.StatusUpdater.Update(backup, nil, updateStatus); err != nil {
Expand Down
67 changes: 40 additions & 27 deletions cmd/backup-manager/app/util/backup_size.go
Original file line number Diff line number Diff line change
Expand Up @@ -45,16 +45,20 @@ import (
// interface CalcVolSnapBackupSize called by backup and backup clean.

const (
// This value can be between 5 and 1,000; if MaxResults is given a value larger than 1,000, only 1,000 results are returned.
// DescribeSnapMaxReturnResult can be between 5 and 1,000; if MaxResults is given a value larger than 1,000, only 1,000 results are returned.
DescribeSnapMaxReturnResult = 1000
// This value can be between 100 and 1,0000, and charge ~0.6$/1 million request
// ListSnapMaxReturnResult can be between 100 and 10,000, and charge ~0.6$/1 million request
ListSnapMaxReturnResult = 10000
// This value can be between 1 and 50 due to aws service quota
// EbsApiConcurrency can be between 1 and 50 due to aws service quota
EbsApiConcurrency = 40

CalculateFullSize = "full"
CalculateIncremental = "incremental"
CalculateAll = "all"
)

// CalcVolSnapBackupSize get snapshots from backup meta and then calc the backup size of snapshots.
func CalcVolSnapBackupSize(ctx context.Context, provider v1alpha1.StorageProvider) (fullBackupSize int64, incrementalBackupSize int64, err error) {
func CalcVolSnapBackupSize(ctx context.Context, provider v1alpha1.StorageProvider, level string) (fullBackupSize int64, incrementalBackupSize int64, err error) {
start := time.Now()
// retrieves all snapshots from backup meta file
volSnapshots, err := getSnapshotsFromBackupmeta(ctx, provider)
Expand All @@ -66,7 +70,7 @@ func CalcVolSnapBackupSize(ctx context.Context, provider v1alpha1.StorageProvide
return 0, 0, err
}

fullBackupSize, incrementalBackupSize, err = calcBackupSize(ctx, volSnapshots)
fullBackupSize, incrementalBackupSize, err = calcBackupSize(ctx, volSnapshots, level)

if err != nil {
return 0, 0, err
Expand Down Expand Up @@ -136,7 +140,7 @@ func getSnapshotsFromBackupmeta(ctx context.Context, provider v1alpha1.StoragePr
}

// calcBackupSize get a volume-snapshots backup size
func calcBackupSize(ctx context.Context, volumes map[string]string) (fullBackupSize int64, incrementalBackupSize int64, err error) {
func calcBackupSize(ctx context.Context, volumes map[string]string, level string) (fullBackupSize int64, incrementalBackupSize int64, err error) {
var apiReqCount, incrementalApiReqCount uint64

workerPool := util.NewWorkerPool(EbsApiConcurrency, "list snapshot size")
Expand All @@ -147,30 +151,35 @@ func calcBackupSize(ctx context.Context, volumes map[string]string) (fullBackupS
volumeId := vid
// sort snapshots by timestamp
workerPool.ApplyOnErrorGroup(eg, func() error {
snapSize, apiReq, err := calculateSnapshotSize(volumeId, snapshotId)
if err != nil {
return err
var snapSize uint64
if level == CalculateAll || level == CalculateFullSize {
snapSize, apiReq, err := calculateSnapshotSize(volumeId, snapshotId)
if err != nil {
return err
}
atomic.AddInt64(&fullBackupSize, int64(snapSize))
atomic.AddUint64(&apiReqCount, apiReq)
}
atomic.AddInt64(&fullBackupSize, int64(snapSize))
atomic.AddUint64(&apiReqCount, apiReq)

volSnapshots, err := getVolSnapshots(volumeId)
if err != nil {
return err
}
prevSnapshotId, existed := getPrevSnapshotId(snapshotId, volSnapshots)
if !existed {
// if there is no previous snapshot, means it's the first snapshot, uses its full size as incremental size
atomic.AddInt64(&incrementalBackupSize, int64(snapSize))
return nil
if level == CalculateAll || level == CalculateIncremental {
volSnapshots, err := getVolSnapshots(volumeId)
if err != nil {
return err
}
prevSnapshotId, existed := getPrevSnapshotId(snapshotId, volSnapshots)
if !existed {
// if there is no previous snapshot, means it's the first snapshot, uses its full size as incremental size
atomic.AddInt64(&incrementalBackupSize, int64(snapSize))
return nil
}
klog.Infof("get previous snapshot %s of snapshot %s, volume %s", prevSnapshotId, snapshotId, volumeId)
incrementalSnapSize, incrementalApiReq, err := calculateChangedBlocksSize(volumeId, prevSnapshotId, snapshotId)
if err != nil {
return err
}
atomic.AddInt64(&incrementalBackupSize, int64(incrementalSnapSize))
atomic.AddUint64(&incrementalApiReqCount, incrementalApiReq)
}
klog.Infof("get previous snapshot %s of snapshot %s, volume %s", prevSnapshotId, snapshotId, volumeId)
incrementalSnapSize, incrementalApiReq, err := calculateChangedBlocksSize(volumeId, prevSnapshotId, snapshotId)
if err != nil {
return err
}
atomic.AddInt64(&incrementalBackupSize, int64(incrementalSnapSize))
atomic.AddUint64(&incrementalApiReqCount, incrementalApiReq)
return nil
})
}
Expand Down Expand Up @@ -217,8 +226,10 @@ func calculateSnapshotSize(volumeId, snapshotId string) (uint64, uint64, error)
}
nextToken = resp.NextToken
}

klog.Infof("full snapshot size %s, num of ListSnapshotBlocks request %d, snapshot id %s, volume id %s",
humanize.Bytes(snapshotSize), numApiReq, snapshotId, volumeId)

return snapshotSize, numApiReq, nil
}

Expand All @@ -230,6 +241,7 @@ func calculateChangedBlocksSize(volumeId, preSnapshotId, snapshotId string) (uin

klog.Infof("start to calculate incremental snapshot size for %s, base on prev snapshot %s, volume id %s",
snapshotId, preSnapshotId, volumeId)

ebsSession, err := util.NewEBSSession(util.CloudAPIConcurrency)
if err != nil {
klog.Errorf("new a ebs session failure.")
Expand Down Expand Up @@ -264,6 +276,7 @@ func calculateChangedBlocksSize(volumeId, preSnapshotId, snapshotId string) (uin
}
nextToken = resp.NextToken
}

klog.Infof("incremental snapshot size %s, num of api ListChangedBlocks request %d, snapshot id %s, volume id %s",
humanize.Bytes(snapshotSize), numApiReq, snapshotId, volumeId)
return snapshotSize, numApiReq, nil
Expand Down
24 changes: 24 additions & 0 deletions docs/api-references/docs.md
Original file line number Diff line number Diff line change
Expand Up @@ -270,6 +270,18 @@ bool
</tr>
<tr>
<td>
<code>calcSizeLevel</code></br>
<em>
string
</em>
</td>
<td>
<em>(Optional)</em>
<p>CalcSizeLevel determines how to size calculation of snapshots for EBS volume snapshot backup</p>
</td>
</tr>
<tr>
<td>
<code>federalVolumeBackupPhase</code></br>
<em>
<a href="#federalvolumebackupphase">
Expand Down Expand Up @@ -4036,6 +4048,18 @@ bool
</tr>
<tr>
<td>
<code>calcSizeLevel</code></br>
<em>
string
</em>
</td>
<td>
<em>(Optional)</em>
<p>CalcSizeLevel determines how to size calculation of snapshots for EBS volume snapshot backup</p>
</td>
</tr>
<tr>
<td>
<code>federalVolumeBackupPhase</code></br>
<em>
<a href="#federalvolumebackupphase">
Expand Down
12 changes: 12 additions & 0 deletions docs/api-references/federation-docs.md
Original file line number Diff line number Diff line change
Expand Up @@ -695,6 +695,18 @@ string
<p>PriorityClassName of Backup Job Pods</p>
</td>
</tr>
<tr>
<td>
<code>calcSizeLevel</code></br>
<em>
string
</em>
</td>
<td>
<em>(Optional)</em>
<p>CalcSizeLevel determines how to size calculation of snapshots for EBS volume snapshot backup</p>
</td>
</tr>
</tbody>
</table>
<h3 id="volumebackupmemberstatus">VolumeBackupMemberStatus</h3>
Expand Down
9 changes: 9 additions & 0 deletions manifests/crd.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -503,6 +503,9 @@ spec:
required:
- cluster
type: object
calcSizeLevel:
default: all
type: string
cleanOption:
properties:
backoffEnabled:
Expand Down Expand Up @@ -2126,6 +2129,9 @@ spec:
required:
- cluster
type: object
calcSizeLevel:
default: all
type: string
cleanOption:
properties:
backoffEnabled:
Expand Down Expand Up @@ -3553,6 +3559,9 @@ spec:
required:
- cluster
type: object
calcSizeLevel:
default: all
type: string
cleanOption:
properties:
backoffEnabled:
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,9 @@ spec:
sendCredToTikv:
type: boolean
type: object
calcSizeLevel:
default: all
type: string
cleanPolicy:
type: string
env:
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -98,6 +98,9 @@ spec:
sendCredToTikv:
type: boolean
type: object
calcSizeLevel:
default: all
type: string
cleanPolicy:
type: string
env:
Expand Down
3 changes: 3 additions & 0 deletions manifests/crd/v1/pingcap.com_backups.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -503,6 +503,9 @@ spec:
required:
- cluster
type: object
calcSizeLevel:
default: all
type: string
cleanOption:
properties:
backoffEnabled:
Expand Down
6 changes: 6 additions & 0 deletions manifests/crd/v1/pingcap.com_backupschedules.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -478,6 +478,9 @@ spec:
required:
- cluster
type: object
calcSizeLevel:
default: all
type: string
cleanOption:
properties:
backoffEnabled:
Expand Down Expand Up @@ -1905,6 +1908,9 @@ spec:
required:
- cluster
type: object
calcSizeLevel:
default: all
type: string
cleanOption:
properties:
backoffEnabled:
Expand Down
6 changes: 6 additions & 0 deletions manifests/federation-crd.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,9 @@ spec:
sendCredToTikv:
type: boolean
type: object
calcSizeLevel:
default: all
type: string
cleanPolicy:
type: string
env:
Expand Down Expand Up @@ -1143,6 +1146,9 @@ spec:
sendCredToTikv:
type: boolean
type: object
calcSizeLevel:
default: all
type: string
cleanPolicy:
type: string
env:
Expand Down
7 changes: 7 additions & 0 deletions pkg/apis/federation/pingcap/v1alpha1/openapi_generated.go

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

4 changes: 4 additions & 0 deletions pkg/apis/federation/pingcap/v1alpha1/types.go
Original file line number Diff line number Diff line change
Expand Up @@ -113,6 +113,10 @@ type VolumeBackupMemberSpec struct {
CleanPolicy pingcapv1alpha1.CleanPolicyType `json:"cleanPolicy,omitempty"`
// PriorityClassName of Backup Job Pods
PriorityClassName string `json:"priorityClassName,omitempty"`
// CalcSizeLevel determines how to size calculation of snapshots for EBS volume snapshot backup
// +optional
// +kubebuilder:default="all"
CalcSizeLevel string `json:"calcSizeLevel,omitempty"`
}

// BRConfig contains config for BR
Expand Down
7 changes: 7 additions & 0 deletions pkg/apis/pingcap/v1alpha1/openapi_generated.go

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

4 changes: 4 additions & 0 deletions pkg/apis/pingcap/v1alpha1/types.go
Original file line number Diff line number Diff line change
Expand Up @@ -1949,6 +1949,10 @@ type BackupSpec struct {
// LogStop indicates that will stop the log backup.
// +optional
LogStop bool `json:"logStop,omitempty"`
// CalcSizeLevel determines how to size calculation of snapshots for EBS volume snapshot backup
// +optional
// +kubebuilder:default="all"
CalcSizeLevel string `json:"calcSizeLevel,omitempty"`
// FederalVolumeBackupPhase indicates which phase to execute in federal volume backup
// +optional
FederalVolumeBackupPhase FederalVolumeBackupPhase `json:"federalVolumeBackupPhase,omitempty"`
Expand Down
5 changes: 3 additions & 2 deletions pkg/backup/snapshotter/snapshotter_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -429,8 +429,9 @@ func TestGenerateBackupMetadata(t *testing.T) {
Annotations: make(map[string]string),
},
Spec: v1alpha1.BackupSpec{
Type: v1alpha1.BackupTypeFull,
Mode: v1alpha1.BackupModeVolumeSnapshot,
Type: v1alpha1.BackupTypeFull,
Mode: v1alpha1.BackupModeVolumeSnapshot,
CalcSizeLevel: "all",
},
},
wantSSNil: false,
Expand Down

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