+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
package main
import (
"strconv"
"strings"
"sync"
+ "sync/atomic"
"time"
"git.curoverse.com/arvados.git/sdk/go/arvados"
- log "github.com/Sirupsen/logrus"
- "github.com/curoverse/azure-sdk-for-go/storage"
+ "github.com/Azure/azure-sdk-for-go/storage"
+ "github.com/prometheus/client_golang/prometheus"
)
const azureDefaultRequestTimeout = arvados.Duration(10 * time.Minute)
AzureReplication int
ReadOnly bool
RequestTimeout arvados.Duration
+ StorageClasses []string
+
+ azClient storage.Client
+ container *azureContainer
+}
- azClient storage.Client
- bsClient *azureBlobClient
+// singleSender is a single-attempt storage.Sender.
+type singleSender struct{}
+
+// Send performs req exactly once.
+func (*singleSender) Send(c *storage.Client, req *http.Request) (resp *http.Response, err error) {
+ return c.HTTPClient.Do(req)
}
// Examples implements VolumeWithExamples.
AzureReplication: 3,
RequestTimeout: azureDefaultRequestTimeout,
},
+ &AzureBlobVolume{
+ StorageAccountName: "cn-account-name",
+ StorageAccountKeyFile: "/etc/azure_cn_storage_account_key.txt",
+ StorageBaseURL: "core.chinacloudapi.cn",
+ ContainerName: "cn-container-name",
+ AzureReplication: 3,
+ RequestTimeout: azureDefaultRequestTimeout,
+ },
}
}
}
// Start implements Volume.
-func (v *AzureBlobVolume) Start() error {
+func (v *AzureBlobVolume) Start(opsCounters, errCounters, ioBytes *prometheus.CounterVec) error {
if v.ContainerName == "" {
return errors.New("no container name given")
}
if err != nil {
return fmt.Errorf("creating Azure storage client: %s", err)
}
+ v.azClient.Sender = &singleSender{}
if v.RequestTimeout == 0 {
v.RequestTimeout = azureDefaultRequestTimeout
Timeout: time.Duration(v.RequestTimeout),
}
bs := v.azClient.GetBlobService()
- v.bsClient = &azureBlobClient{
- client: &bs,
+ v.container = &azureContainer{
+ ctr: bs.GetContainerReference(v.ContainerName),
}
- ok, err := v.bsClient.ContainerExists(v.ContainerName)
- if err != nil {
+ if ok, err := v.container.Exists(); err != nil {
return err
- }
- if !ok {
+ } else if !ok {
return fmt.Errorf("Azure container %q does not exist", v.ContainerName)
}
+ // Set up prometheus metrics
+ lbls := prometheus.Labels{"device_id": v.DeviceID()}
+ v.container.stats.opsCounters = opsCounters.MustCurryWith(lbls)
+ v.container.stats.errCounters = errCounters.MustCurryWith(lbls)
+ v.container.stats.ioBytes = ioBytes.MustCurryWith(lbls)
+
return nil
}
+// DeviceID returns a globally unique ID for the storage container.
+func (v *AzureBlobVolume) DeviceID() string {
+ return "azure://" + v.StorageBaseURL + "/" + v.StorageAccountName + "/" + v.ContainerName
+}
+
// Return true if expires_at metadata attribute is found on the block
func (v *AzureBlobVolume) checkTrashed(loc string) (bool, map[string]string, error) {
- metadata, err := v.bsClient.GetBlobMetadata(v.ContainerName, loc)
+ metadata, err := v.container.GetBlobMetadata(loc)
if err != nil {
return false, metadata, v.translateError(err)
}
if azureMaxGetBytes < BlockSize {
// Unfortunately the handler doesn't tell us how long the blob
// is expected to be, so we have to ask Azure.
- props, err := v.bsClient.GetBlobProperties(v.ContainerName, loc)
+ props, err := v.container.GetBlobProperties(loc)
if err != nil {
return 0, v.translateError(err)
}
go func() {
defer close(gotRdr)
if startPos == 0 && endPos == expectSize {
- rdr, err = v.bsClient.GetBlob(v.ContainerName, loc)
+ rdr, err = v.container.GetBlob(loc)
} else {
- rdr, err = v.bsClient.GetBlobRange(v.ContainerName, loc, fmt.Sprintf("%d-%d", startPos, endPos-1), nil)
+ rdr, err = v.container.GetBlobRange(loc, startPos, endPos-1, nil)
}
}()
select {
gotRdr := make(chan struct{})
go func() {
defer close(gotRdr)
- rdr, err = v.bsClient.GetBlob(v.ContainerName, loc)
+ rdr, err = v.container.GetBlob(loc)
}()
select {
case <-ctx.Done():
}()
errChan := make(chan error)
go func() {
- errChan <- v.bsClient.CreateBlockBlobFromReader(v.ContainerName, loc, uint64(len(block)), bufr, nil)
+ var body io.Reader = bufr
+ if len(block) == 0 {
+ // We must send a "Content-Length: 0" header,
+ // but the http client interprets
+ // ContentLength==0 as "unknown" unless it can
+ // confirm by introspection that Body will
+ // read 0 bytes.
+ body = http.NoBody
+ bufr.Close()
+ }
+ errChan <- v.container.CreateBlockBlobFromReader(loc, len(block), body, nil)
}()
select {
case <-ctx.Done():
return os.ErrNotExist
}
- metadata["touch"] = fmt.Sprintf("%d", time.Now())
- return v.bsClient.SetBlobMetadata(v.ContainerName, loc, metadata, nil)
+ metadata["touch"] = fmt.Sprintf("%d", time.Now().Unix())
+ return v.container.SetBlobMetadata(loc, metadata, nil)
}
// Mtime returns the last-modified property of a block blob.
return time.Time{}, os.ErrNotExist
}
- props, err := v.bsClient.GetBlobProperties(v.ContainerName, loc)
+ props, err := v.container.GetBlobProperties(loc)
if err != nil {
return time.Time{}, err
}
- return time.Parse(time.RFC1123, props.LastModified)
+ return time.Time(props.LastModified), nil
}
// IndexTo writes a list of Keep blocks that are stored in the
func (v *AzureBlobVolume) IndexTo(prefix string, writer io.Writer) error {
params := storage.ListBlobsParameters{
Prefix: prefix,
- Include: "metadata",
+ Include: &storage.IncludeBlobDataset{Metadata: true},
}
for {
- resp, err := v.bsClient.ListBlobs(v.ContainerName, params)
+ resp, err := v.container.ListBlobs(params)
if err != nil {
return err
}
for _, b := range resp.Blobs {
- t, err := time.Parse(time.RFC1123, b.Properties.LastModified)
- if err != nil {
- return err
- }
if !v.isKeepBlock(b.Name) {
continue
}
- if b.Properties.ContentLength == 0 && t.Add(azureWriteRaceInterval).After(time.Now()) {
+ modtime := time.Time(b.Properties.LastModified)
+ if b.Properties.ContentLength == 0 && modtime.Add(azureWriteRaceInterval).After(time.Now()) {
// A new zero-length blob is probably
// just a new non-empty blob that
// hasn't committed its data yet (see
// Trashed blob; exclude it from response
continue
}
- fmt.Fprintf(writer, "%s+%d %d\n", b.Name, b.Properties.ContentLength, t.UnixNano())
+ fmt.Fprintf(writer, "%s+%d %d\n", b.Name, b.Properties.ContentLength, modtime.UnixNano())
}
if resp.NextMarker == "" {
return nil
// we get the Etag before checking Mtime, and use If-Match to
// ensure we don't delete data if Put() or Touch() happens
// between our calls to Mtime() and DeleteBlob().
- props, err := v.bsClient.GetBlobProperties(v.ContainerName, loc)
+ props, err := v.container.GetBlobProperties(loc)
if err != nil {
return err
}
// If TrashLifetime == 0, just delete it
if theConfig.TrashLifetime == 0 {
- return v.bsClient.DeleteBlob(v.ContainerName, loc, map[string]string{
- "If-Match": props.Etag,
+ return v.container.DeleteBlob(loc, &storage.DeleteBlobOptions{
+ IfMatch: props.Etag,
})
}
// Otherwise, mark as trash
- return v.bsClient.SetBlobMetadata(v.ContainerName, loc, map[string]string{
+ return v.container.SetBlobMetadata(loc, storage.BlobMetadata{
"expires_at": fmt.Sprintf("%d", time.Now().Add(theConfig.TrashLifetime.Duration()).Unix()),
- }, map[string]string{
- "If-Match": props.Etag,
+ }, &storage.SetBlobMetadataOptions{
+ IfMatch: props.Etag,
})
}
// Delete the expires_at metadata attribute
func (v *AzureBlobVolume) Untrash(loc string) error {
// if expires_at does not exist, return NotFoundError
- metadata, err := v.bsClient.GetBlobMetadata(v.ContainerName, loc)
+ metadata, err := v.container.GetBlobMetadata(loc)
if err != nil {
return v.translateError(err)
}
// reset expires_at metadata attribute
metadata["expires_at"] = ""
- err = v.bsClient.SetBlobMetadata(v.ContainerName, loc, metadata, nil)
+ err = v.container.SetBlobMetadata(loc, metadata, nil)
return v.translateError(err)
}
return v.AzureReplication
}
+// GetStorageClasses implements Volume
+func (v *AzureBlobVolume) GetStorageClasses() []string {
+ return v.StorageClasses
+}
+
// If possible, translate an Azure SDK error to a recognizable error
// like os.ErrNotExist.
func (v *AzureBlobVolume) translateError(err error) error {
switch {
case err == nil:
return err
+ case strings.Contains(err.Error(), "StatusCode=503"):
+ // "storage: service returned error: StatusCode=503, ErrorCode=ServerBusy, ErrorMessage=The server is busy" (See #14804)
+ return VolumeBusyError
case strings.Contains(err.Error(), "Not Found"):
// "storage: service returned without a response body (404 Not Found)"
return os.ErrNotExist
// and deletes them from the volume.
func (v *AzureBlobVolume) EmptyTrash() {
var bytesDeleted, bytesInTrash int64
- var blocksDeleted, blocksInTrash int
- params := storage.ListBlobsParameters{Include: "metadata"}
+ var blocksDeleted, blocksInTrash int64
- for {
- resp, err := v.bsClient.ListBlobs(v.ContainerName, params)
+ doBlob := func(b storage.Blob) {
+ // Check whether the block is flagged as trash
+ if b.Metadata["expires_at"] == "" {
+ return
+ }
+
+ atomic.AddInt64(&blocksInTrash, 1)
+ atomic.AddInt64(&bytesInTrash, b.Properties.ContentLength)
+
+ expiresAt, err := strconv.ParseInt(b.Metadata["expires_at"], 10, 64)
if err != nil {
- log.Printf("EmptyTrash: ListBlobs: %v", err)
- break
+ log.Printf("EmptyTrash: ParseInt(%v): %v", b.Metadata["expires_at"], err)
+ return
}
- for _, b := range resp.Blobs {
- // Check if the block is expired
- if b.Metadata["expires_at"] == "" {
- continue
- }
- blocksInTrash++
- bytesInTrash += b.Properties.ContentLength
+ if expiresAt > time.Now().Unix() {
+ return
+ }
- expiresAt, err := strconv.ParseInt(b.Metadata["expires_at"], 10, 64)
- if err != nil {
- log.Printf("EmptyTrash: ParseInt(%v): %v", b.Metadata["expires_at"], err)
- continue
- }
+ err = v.container.DeleteBlob(b.Name, &storage.DeleteBlobOptions{
+ IfMatch: b.Properties.Etag,
+ })
+ if err != nil {
+ log.Printf("EmptyTrash: DeleteBlob(%v): %v", b.Name, err)
+ return
+ }
+ atomic.AddInt64(&blocksDeleted, 1)
+ atomic.AddInt64(&bytesDeleted, b.Properties.ContentLength)
+ }
- if expiresAt > time.Now().Unix() {
- continue
+ var wg sync.WaitGroup
+ todo := make(chan storage.Blob, theConfig.EmptyTrashWorkers)
+ for i := 0; i < 1 || i < theConfig.EmptyTrashWorkers; i++ {
+ wg.Add(1)
+ go func() {
+ defer wg.Done()
+ for b := range todo {
+ doBlob(b)
}
+ }()
+ }
- err = v.bsClient.DeleteBlob(v.ContainerName, b.Name, map[string]string{
- "If-Match": b.Properties.Etag,
- })
- if err != nil {
- log.Printf("EmptyTrash: DeleteBlob(%v): %v", b.Name, err)
- continue
- }
- blocksDeleted++
- bytesDeleted += b.Properties.ContentLength
+ params := storage.ListBlobsParameters{Include: &storage.IncludeBlobDataset{Metadata: true}}
+ for {
+ resp, err := v.container.ListBlobs(params)
+ if err != nil {
+ log.Printf("EmptyTrash: ListBlobs: %v", err)
+ break
+ }
+ for _, b := range resp.Blobs {
+ todo <- b
}
if resp.NextMarker == "" {
break
}
params.Marker = resp.NextMarker
}
+ close(todo)
+ wg.Wait()
log.Printf("EmptyTrash stats for %v: Deleted %v bytes in %v blocks. Remaining in trash: %v bytes in %v blocks.", v.String(), bytesDeleted, blocksDeleted, bytesInTrash-bytesDeleted, blocksInTrash-blocksDeleted)
}
// InternalStats returns bucket I/O and API call counters.
func (v *AzureBlobVolume) InternalStats() interface{} {
- return &v.bsClient.stats
+ return &v.container.stats
}
type azureBlobStats struct {
s.statsTicker.TickErr(err, errType)
}
-// azureBlobClient wraps storage.BlobStorageClient in order to count
-// I/O and API usage stats.
-type azureBlobClient struct {
- client *storage.BlobStorageClient
- stats azureBlobStats
+// azureContainer wraps storage.Container in order to count I/O and
+// API usage stats.
+type azureContainer struct {
+ ctr *storage.Container
+ stats azureBlobStats
}
-func (c *azureBlobClient) ContainerExists(cname string) (bool, error) {
+func (c *azureContainer) Exists() (bool, error) {
+ c.stats.TickOps("exists")
c.stats.Tick(&c.stats.Ops)
- ok, err := c.client.ContainerExists(cname)
+ ok, err := c.ctr.Exists()
c.stats.TickErr(err)
return ok, err
}
-func (c *azureBlobClient) GetBlobMetadata(cname, bname string) (map[string]string, error) {
+func (c *azureContainer) GetBlobMetadata(bname string) (storage.BlobMetadata, error) {
+ c.stats.TickOps("get_metadata")
c.stats.Tick(&c.stats.Ops, &c.stats.GetMetadataOps)
- m, err := c.client.GetBlobMetadata(cname, bname)
+ b := c.ctr.GetBlobReference(bname)
+ err := b.GetMetadata(nil)
c.stats.TickErr(err)
- return m, err
+ return b.Metadata, err
}
-func (c *azureBlobClient) GetBlobProperties(cname, bname string) (*storage.BlobProperties, error) {
+func (c *azureContainer) GetBlobProperties(bname string) (*storage.BlobProperties, error) {
+ c.stats.TickOps("get_properties")
c.stats.Tick(&c.stats.Ops, &c.stats.GetPropertiesOps)
- p, err := c.client.GetBlobProperties(cname, bname)
+ b := c.ctr.GetBlobReference(bname)
+ err := b.GetProperties(nil)
c.stats.TickErr(err)
- return p, err
+ return &b.Properties, err
}
-func (c *azureBlobClient) GetBlob(cname, bname string) (io.ReadCloser, error) {
+func (c *azureContainer) GetBlob(bname string) (io.ReadCloser, error) {
+ c.stats.TickOps("get")
c.stats.Tick(&c.stats.Ops, &c.stats.GetOps)
- rdr, err := c.client.GetBlob(cname, bname)
+ b := c.ctr.GetBlobReference(bname)
+ rdr, err := b.Get(nil)
c.stats.TickErr(err)
return NewCountingReader(rdr, c.stats.TickInBytes), err
}
-func (c *azureBlobClient) GetBlobRange(cname, bname, byterange string, hdrs map[string]string) (io.ReadCloser, error) {
+func (c *azureContainer) GetBlobRange(bname string, start, end int, opts *storage.GetBlobOptions) (io.ReadCloser, error) {
+ c.stats.TickOps("get_range")
c.stats.Tick(&c.stats.Ops, &c.stats.GetRangeOps)
- rdr, err := c.client.GetBlobRange(cname, bname, byterange, hdrs)
+ b := c.ctr.GetBlobReference(bname)
+ rdr, err := b.GetRange(&storage.GetBlobRangeOptions{
+ Range: &storage.BlobRange{
+ Start: uint64(start),
+ End: uint64(end),
+ },
+ GetBlobOptions: opts,
+ })
c.stats.TickErr(err)
return NewCountingReader(rdr, c.stats.TickInBytes), err
}
-func (c *azureBlobClient) CreateBlockBlobFromReader(cname, bname string, size uint64, rdr io.Reader, hdrs map[string]string) error {
+// If we give it an io.Reader that doesn't also have a Len() int
+// method, the Azure SDK determines data size by copying the data into
+// a new buffer, which is not a good use of memory.
+type readerWithAzureLen struct {
+ io.Reader
+ len int
+}
+
+// Len satisfies the private lener interface in azure-sdk-for-go.
+func (r *readerWithAzureLen) Len() int {
+ return r.len
+}
+
+func (c *azureContainer) CreateBlockBlobFromReader(bname string, size int, rdr io.Reader, opts *storage.PutBlobOptions) error {
+ c.stats.TickOps("create")
c.stats.Tick(&c.stats.Ops, &c.stats.CreateOps)
- rdr = NewCountingReader(rdr, c.stats.TickOutBytes)
- err := c.client.CreateBlockBlobFromReader(cname, bname, size, rdr, hdrs)
+ if size != 0 {
+ rdr = &readerWithAzureLen{
+ Reader: NewCountingReader(rdr, c.stats.TickOutBytes),
+ len: size,
+ }
+ }
+ b := c.ctr.GetBlobReference(bname)
+ err := b.CreateBlockBlobFromReader(rdr, opts)
c.stats.TickErr(err)
return err
}
-func (c *azureBlobClient) SetBlobMetadata(cname, bname string, m, hdrs map[string]string) error {
+func (c *azureContainer) SetBlobMetadata(bname string, m storage.BlobMetadata, opts *storage.SetBlobMetadataOptions) error {
+ c.stats.TickOps("set_metadata")
c.stats.Tick(&c.stats.Ops, &c.stats.SetMetadataOps)
- err := c.client.SetBlobMetadata(cname, bname, m, hdrs)
+ b := c.ctr.GetBlobReference(bname)
+ b.Metadata = m
+ err := b.SetMetadata(opts)
c.stats.TickErr(err)
return err
}
-func (c *azureBlobClient) ListBlobs(cname string, params storage.ListBlobsParameters) (storage.BlobListResponse, error) {
+func (c *azureContainer) ListBlobs(params storage.ListBlobsParameters) (storage.BlobListResponse, error) {
+ c.stats.TickOps("list")
c.stats.Tick(&c.stats.Ops, &c.stats.ListOps)
- resp, err := c.client.ListBlobs(cname, params)
+ resp, err := c.ctr.ListBlobs(params)
c.stats.TickErr(err)
return resp, err
}
-func (c *azureBlobClient) DeleteBlob(cname, bname string, hdrs map[string]string) error {
+func (c *azureContainer) DeleteBlob(bname string, opts *storage.DeleteBlobOptions) error {
+ c.stats.TickOps("delete")
c.stats.Tick(&c.stats.Ops, &c.stats.DelOps)
- err := c.client.DeleteBlob(cname, bname, hdrs)
+ b := c.ctr.GetBlobReference(bname)
+ err := b.Delete(opts)
c.stats.TickErr(err)
return err
}
projects / arvados.git / blobdiff