//
// SPDX-License-Identifier: AGPL-3.0
-package main
+package keepstore
import (
- "bytes"
"context"
+ "encoding/json"
"errors"
- "flag"
"fmt"
"io"
- "io/ioutil"
"net/http"
"os"
"regexp"
"sync/atomic"
"time"
- "git.curoverse.com/arvados.git/sdk/go/arvados"
+ "git.arvados.org/arvados.git/sdk/go/arvados"
+ "git.arvados.org/arvados.git/sdk/go/ctxlog"
"github.com/Azure/azure-sdk-for-go/storage"
+ "github.com/prometheus/client_golang/prometheus"
+ "github.com/sirupsen/logrus"
)
-const azureDefaultRequestTimeout = arvados.Duration(10 * time.Minute)
-
-var (
- azureMaxGetBytes int
- azureStorageAccountName string
- azureStorageAccountKeyFile string
- azureStorageReplication int
- azureWriteRaceInterval = 15 * time.Second
- azureWriteRacePollTime = time.Second
-)
-
-func readKeyFromFile(file string) (string, error) {
- buf, err := ioutil.ReadFile(file)
- if err != nil {
- return "", errors.New("reading key from " + file + ": " + err.Error())
- }
- accountKey := strings.TrimSpace(string(buf))
- if accountKey == "" {
- return "", errors.New("empty account key in " + file)
- }
- return accountKey, nil
-}
-
-type azureVolumeAdder struct {
- *Config
-}
-
-// String implements flag.Value
-func (s *azureVolumeAdder) String() string {
- return "-"
-}
-
-func (s *azureVolumeAdder) Set(containerName string) error {
- s.Config.Volumes = append(s.Config.Volumes, &AzureBlobVolume{
- ContainerName: containerName,
- StorageAccountName: azureStorageAccountName,
- StorageAccountKeyFile: azureStorageAccountKeyFile,
- AzureReplication: azureStorageReplication,
- ReadOnly: deprecated.flagReadonly,
- })
- return nil
-}
-
func init() {
- VolumeTypes = append(VolumeTypes, func() VolumeWithExamples { return &AzureBlobVolume{} })
-
- flag.Var(&azureVolumeAdder{theConfig},
- "azure-storage-container-volume",
- "Use the given container as a storage volume. Can be given multiple times.")
- flag.StringVar(
- &azureStorageAccountName,
- "azure-storage-account-name",
- "",
- "Azure storage account name used for subsequent --azure-storage-container-volume arguments.")
- flag.StringVar(
- &azureStorageAccountKeyFile,
- "azure-storage-account-key-file",
- "",
- "`File` containing the account key used for subsequent --azure-storage-container-volume arguments.")
- flag.IntVar(
- &azureStorageReplication,
- "azure-storage-replication",
- 3,
- "Replication level to report to clients when data is stored in an Azure container.")
- flag.IntVar(
- &azureMaxGetBytes,
- "azure-max-get-bytes",
- BlockSize,
- fmt.Sprintf("Maximum bytes to request in a single GET request. If smaller than %d, use multiple concurrent range requests to retrieve a block.", BlockSize))
-}
-
-// An AzureBlobVolume stores and retrieves blocks in an Azure Blob
-// container.
-type AzureBlobVolume struct {
- StorageAccountName string
- StorageAccountKeyFile string
- StorageBaseURL string // "" means default, "core.windows.net"
- ContainerName string
- AzureReplication int
- ReadOnly bool
- RequestTimeout arvados.Duration
- StorageClasses []string
-
- azClient storage.Client
- container *azureContainer
-}
-
-// 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)
+ driver["Azure"] = newAzureBlobVolume
}
-// Examples implements VolumeWithExamples.
-func (*AzureBlobVolume) Examples() []Volume {
- return []Volume{
- &AzureBlobVolume{
- StorageAccountName: "example-account-name",
- StorageAccountKeyFile: "/etc/azure_storage_account_key.txt",
- ContainerName: "example-container-name",
- 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,
- },
+func newAzureBlobVolume(params newVolumeParams) (volume, error) {
+ v := &azureBlobVolume{
+ RequestTimeout: azureDefaultRequestTimeout,
+ WriteRaceInterval: azureDefaultWriteRaceInterval,
+ WriteRacePollTime: azureDefaultWriteRacePollTime,
+ cluster: params.Cluster,
+ volume: params.ConfigVolume,
+ logger: params.Logger,
+ metrics: params.MetricsVecs,
+ bufferPool: params.BufferPool,
}
-}
-
-// Type implements Volume.
-func (v *AzureBlobVolume) Type() string {
- return "Azure"
-}
-
-// Start implements Volume.
-func (v *AzureBlobVolume) Start() error {
- if v.ContainerName == "" {
- return errors.New("no container name given")
+ err := json.Unmarshal(params.ConfigVolume.DriverParameters, &v)
+ if err != nil {
+ return nil, err
}
- if v.StorageAccountName == "" || v.StorageAccountKeyFile == "" {
- return errors.New("StorageAccountName and StorageAccountKeyFile must be given")
+ if v.ListBlobsRetryDelay == 0 {
+ v.ListBlobsRetryDelay = azureDefaultListBlobsRetryDelay
}
- accountKey, err := readKeyFromFile(v.StorageAccountKeyFile)
- if err != nil {
- return err
+ if v.ListBlobsMaxAttempts == 0 {
+ v.ListBlobsMaxAttempts = azureDefaultListBlobsMaxAttempts
}
if v.StorageBaseURL == "" {
v.StorageBaseURL = storage.DefaultBaseURL
}
- v.azClient, err = storage.NewClient(v.StorageAccountName, accountKey, v.StorageBaseURL, storage.DefaultAPIVersion, true)
+ if v.ContainerName == "" || v.StorageAccountName == "" || v.StorageAccountKey == "" {
+ return nil, errors.New("DriverParameters: ContainerName, StorageAccountName, and StorageAccountKey must be provided")
+ }
+ azc, err := storage.NewClient(v.StorageAccountName, v.StorageAccountKey, v.StorageBaseURL, storage.DefaultAPIVersion, true)
if err != nil {
- return fmt.Errorf("creating Azure storage client: %s", err)
+ return nil, fmt.Errorf("creating Azure storage client: %s", err)
}
+ v.azClient = azc
v.azClient.Sender = &singleSender{}
-
- if v.RequestTimeout == 0 {
- v.RequestTimeout = azureDefaultRequestTimeout
- }
v.azClient.HTTPClient = &http.Client{
Timeout: time.Duration(v.RequestTimeout),
}
}
if ok, err := v.container.Exists(); err != nil {
- return err
+ return nil, err
} else if !ok {
- return fmt.Errorf("Azure container %q does not exist", v.ContainerName)
+ return nil, fmt.Errorf("Azure container %q does not exist: %s", v.ContainerName, err)
}
+ return v, v.check()
+}
+
+func (v *azureBlobVolume) check() error {
+ lbls := prometheus.Labels{"device_id": v.DeviceID()}
+ v.container.stats.opsCounters, v.container.stats.errCounters, v.container.stats.ioBytes = v.metrics.getCounterVecsFor(lbls)
return nil
}
+const (
+ azureDefaultRequestTimeout = arvados.Duration(10 * time.Minute)
+ azureDefaultListBlobsMaxAttempts = 12
+ azureDefaultListBlobsRetryDelay = arvados.Duration(10 * time.Second)
+ azureDefaultWriteRaceInterval = arvados.Duration(15 * time.Second)
+ azureDefaultWriteRacePollTime = arvados.Duration(time.Second)
+)
+
+// An azureBlobVolume stores and retrieves blocks in an Azure Blob
+// container.
+type azureBlobVolume struct {
+ StorageAccountName string
+ StorageAccountKey string
+ StorageBaseURL string // "" means default, "core.windows.net"
+ ContainerName string
+ RequestTimeout arvados.Duration
+ ListBlobsRetryDelay arvados.Duration
+ ListBlobsMaxAttempts int
+ MaxGetBytes int
+ WriteRaceInterval arvados.Duration
+ WriteRacePollTime arvados.Duration
+
+ cluster *arvados.Cluster
+ volume arvados.Volume
+ logger logrus.FieldLogger
+ metrics *volumeMetricsVecs
+ bufferPool *bufferPool
+ azClient storage.Client
+ container *azureContainer
+}
+
+// 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)
+}
+
// DeviceID returns a globally unique ID for the storage container.
-func (v *AzureBlobVolume) DeviceID() string {
+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) {
+func (v *azureBlobVolume) checkTrashed(loc string) (bool, map[string]string, error) {
metadata, err := v.container.GetBlobMetadata(loc)
if err != nil {
return false, metadata, v.translateError(err)
return false, metadata, nil
}
-// Get reads a Keep block that has been stored as a block blob in the
-// container.
+// BlockRead reads a Keep block that has been stored as a block blob
+// in the container.
//
// If the block is younger than azureWriteRaceInterval and is
-// unexpectedly empty, assume a PutBlob operation is in progress, and
-// wait for it to finish writing.
-func (v *AzureBlobVolume) Get(ctx context.Context, loc string, buf []byte) (int, error) {
- trashed, _, err := v.checkTrashed(loc)
+// unexpectedly empty, assume a BlockWrite operation is in progress,
+// and wait for it to finish writing.
+func (v *azureBlobVolume) BlockRead(ctx context.Context, hash string, w io.WriterAt) error {
+ trashed, _, err := v.checkTrashed(hash)
if err != nil {
- return 0, err
+ return err
}
if trashed {
- return 0, os.ErrNotExist
+ return os.ErrNotExist
}
+ buf, err := v.bufferPool.GetContext(ctx)
+ if err != nil {
+ return err
+ }
+ defer v.bufferPool.Put(buf)
var deadline time.Time
- haveDeadline := false
- size, err := v.get(ctx, loc, buf)
- for err == nil && size == 0 && loc != "d41d8cd98f00b204e9800998ecf8427e" {
+ wrote, err := v.get(ctx, hash, w)
+ for err == nil && wrote == 0 && hash != "d41d8cd98f00b204e9800998ecf8427e" {
// Seeing a brand new empty block probably means we're
// in a race with CreateBlob, which under the hood
// (apparently) does "CreateEmpty" and "CommitData"
// with no additional transaction locking.
- if !haveDeadline {
- t, err := v.Mtime(loc)
+ if deadline.IsZero() {
+ t, err := v.Mtime(hash)
if err != nil {
- log.Print("Got empty block (possible race) but Mtime failed: ", err)
+ ctxlog.FromContext(ctx).Print("Got empty block (possible race) but Mtime failed: ", err)
break
}
- deadline = t.Add(azureWriteRaceInterval)
+ deadline = t.Add(v.WriteRaceInterval.Duration())
if time.Now().After(deadline) {
break
}
- log.Printf("Race? Block %s is 0 bytes, %s old. Polling until %s", loc, time.Since(t), deadline)
- haveDeadline = true
+ ctxlog.FromContext(ctx).Printf("Race? Block %s is 0 bytes, %s old. Polling until %s", hash, time.Since(t), deadline)
} else if time.Now().After(deadline) {
break
}
select {
case <-ctx.Done():
- return 0, ctx.Err()
- case <-time.After(azureWriteRacePollTime):
+ return ctx.Err()
+ case <-time.After(v.WriteRacePollTime.Duration()):
}
- size, err = v.get(ctx, loc, buf)
+ wrote, err = v.get(ctx, hash, w)
}
- if haveDeadline {
- log.Printf("Race ended with size==%d", size)
+ if !deadline.IsZero() {
+ ctxlog.FromContext(ctx).Printf("Race ended with size==%d", wrote)
}
- return size, err
+ return err
}
-func (v *AzureBlobVolume) get(ctx context.Context, loc string, buf []byte) (int, error) {
+func (v *azureBlobVolume) get(ctx context.Context, hash string, dst io.WriterAt) (int, error) {
ctx, cancel := context.WithCancel(ctx)
defer cancel()
- expectSize := len(buf)
- 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.container.GetBlobProperties(loc)
+
+ pieceSize := BlockSize
+ if v.MaxGetBytes > 0 && v.MaxGetBytes < BlockSize {
+ pieceSize = v.MaxGetBytes
+ }
+
+ pieces := 1
+ expectSize := BlockSize
+ sizeKnown := false
+ if pieceSize < 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.container.GetBlobProperties(hash)
if err != nil {
return 0, v.translateError(err)
}
if props.ContentLength > int64(BlockSize) || props.ContentLength < 0 {
- return 0, fmt.Errorf("block %s invalid size %d (max %d)", loc, props.ContentLength, BlockSize)
+ return 0, fmt.Errorf("block %s invalid size %d (max %d)", hash, props.ContentLength, BlockSize)
}
expectSize = int(props.ContentLength)
+ pieces = (expectSize + pieceSize - 1) / pieceSize
+ sizeKnown = true
}
if expectSize == 0 {
return 0, nil
}
- // We'll update this actualSize if/when we get the last piece.
- actualSize := -1
- pieces := (expectSize + azureMaxGetBytes - 1) / azureMaxGetBytes
errors := make(chan error, pieces)
+ var wrote atomic.Int64
var wg sync.WaitGroup
wg.Add(pieces)
for p := 0; p < pieces; p++ {
// interrupted as a result.
go func(p int) {
defer wg.Done()
- startPos := p * azureMaxGetBytes
- endPos := startPos + azureMaxGetBytes
+ startPos := p * pieceSize
+ endPos := startPos + pieceSize
if endPos > expectSize {
endPos = expectSize
}
go func() {
defer close(gotRdr)
if startPos == 0 && endPos == expectSize {
- rdr, err = v.container.GetBlob(loc)
+ rdr, err = v.container.GetBlob(hash)
} else {
- rdr, err = v.container.GetBlobRange(loc, startPos, endPos-1, nil)
+ rdr, err = v.container.GetBlobRange(hash, startPos, endPos-1, nil)
}
}()
select {
<-ctx.Done()
rdr.Close()
}()
- n, err := io.ReadFull(rdr, buf[startPos:endPos])
- if pieces == 1 && (err == io.ErrUnexpectedEOF || err == io.EOF) {
+ n, err := io.CopyN(io.NewOffsetWriter(dst, int64(startPos)), rdr, int64(endPos-startPos))
+ wrote.Add(n)
+ if pieces == 1 && !sizeKnown && (err == io.ErrUnexpectedEOF || err == io.EOF) {
// If we don't know the actual size,
// and just tried reading 64 MiB, it's
// normal to encounter EOF.
} else if err != nil {
- if ctx.Err() == nil {
- errors <- err
- }
+ errors <- err
cancel()
return
}
- if p == pieces-1 {
- actualSize = startPos + n
- }
}(p)
}
wg.Wait()
close(errors)
if len(errors) > 0 {
- return 0, v.translateError(<-errors)
- }
- if ctx.Err() != nil {
- return 0, ctx.Err()
- }
- return actualSize, nil
-}
-
-// Compare the given data with existing stored data.
-func (v *AzureBlobVolume) Compare(ctx context.Context, loc string, expect []byte) error {
- trashed, _, err := v.checkTrashed(loc)
- if err != nil {
- return err
- }
- if trashed {
- return os.ErrNotExist
- }
- var rdr io.ReadCloser
- gotRdr := make(chan struct{})
- go func() {
- defer close(gotRdr)
- rdr, err = v.container.GetBlob(loc)
- }()
- select {
- case <-ctx.Done():
- go func() {
- <-gotRdr
- if err == nil {
- rdr.Close()
- }
- }()
- return ctx.Err()
- case <-gotRdr:
- }
- if err != nil {
- return v.translateError(err)
+ return int(wrote.Load()), v.translateError(<-errors)
}
- defer rdr.Close()
- return compareReaderWithBuf(ctx, rdr, expect, loc[:32])
+ return int(wrote.Load()), ctx.Err()
}
-// Put stores a Keep block as a block blob in the container.
-func (v *AzureBlobVolume) Put(ctx context.Context, loc string, block []byte) error {
- if v.ReadOnly {
- return MethodDisabledError
- }
+// BlockWrite stores a block on the volume. If it already exists, its
+// timestamp is updated.
+func (v *azureBlobVolume) BlockWrite(ctx context.Context, hash string, data []byte) error {
// Send the block data through a pipe, so that (if we need to)
// we can close the pipe early and abandon our
// CreateBlockBlobFromReader() goroutine, without worrying
- // about CreateBlockBlobFromReader() accessing our block
+ // about CreateBlockBlobFromReader() accessing our data
// buffer after we release it.
bufr, bufw := io.Pipe()
go func() {
- io.Copy(bufw, bytes.NewReader(block))
+ bufw.Write(data)
bufw.Close()
}()
- errChan := make(chan error)
+ errChan := make(chan error, 1)
go func() {
var body io.Reader = bufr
- if len(block) == 0 {
+ if len(data) == 0 {
// We must send a "Content-Length: 0" header,
// but the http client interprets
// ContentLength==0 as "unknown" unless it can
body = http.NoBody
bufr.Close()
}
- errChan <- v.container.CreateBlockBlobFromReader(loc, len(block), body, nil)
+ errChan <- v.container.CreateBlockBlobFromReader(hash, len(data), body, nil)
}()
select {
case <-ctx.Done():
- theConfig.debugLogf("%s: taking CreateBlockBlobFromReader's input away: %s", v, ctx.Err())
- // Our pipe might be stuck in Write(), waiting for
- // io.Copy() to read. If so, un-stick it. This means
- // CreateBlockBlobFromReader will get corrupt data,
- // but that's OK: the size won't match, so the write
- // will fail.
- go io.Copy(ioutil.Discard, bufr)
- // CloseWithError() will return once pending I/O is done.
+ ctxlog.FromContext(ctx).Debugf("%s: taking CreateBlockBlobFromReader's input away: %s", v, ctx.Err())
+ // bufw.CloseWithError() interrupts bufw.Write() if
+ // necessary, ensuring CreateBlockBlobFromReader can't
+ // read any more of our data slice via bufr after we
+ // return.
bufw.CloseWithError(ctx.Err())
- theConfig.debugLogf("%s: abandoning CreateBlockBlobFromReader goroutine", v)
+ ctxlog.FromContext(ctx).Debugf("%s: abandoning CreateBlockBlobFromReader goroutine", v)
return ctx.Err()
case err := <-errChan:
return err
}
}
-// Touch updates the last-modified property of a block blob.
-func (v *AzureBlobVolume) Touch(loc string) error {
- if v.ReadOnly {
- return MethodDisabledError
- }
- trashed, metadata, err := v.checkTrashed(loc)
+// BlockTouch updates the last-modified property of a block blob.
+func (v *azureBlobVolume) BlockTouch(hash string) error {
+ trashed, metadata, err := v.checkTrashed(hash)
if err != nil {
return err
}
}
metadata["touch"] = fmt.Sprintf("%d", time.Now().Unix())
- return v.container.SetBlobMetadata(loc, metadata, nil)
+ return v.container.SetBlobMetadata(hash, metadata, nil)
}
// Mtime returns the last-modified property of a block blob.
-func (v *AzureBlobVolume) Mtime(loc string) (time.Time, error) {
- trashed, _, err := v.checkTrashed(loc)
+func (v *azureBlobVolume) Mtime(hash string) (time.Time, error) {
+ trashed, _, err := v.checkTrashed(hash)
if err != nil {
return time.Time{}, err
}
return time.Time{}, os.ErrNotExist
}
- props, err := v.container.GetBlobProperties(loc)
+ props, err := v.container.GetBlobProperties(hash)
if err != nil {
return time.Time{}, err
}
return time.Time(props.LastModified), nil
}
-// IndexTo writes a list of Keep blocks that are stored in the
+// Index writes a list of Keep blocks that are stored in the
// container.
-func (v *AzureBlobVolume) IndexTo(prefix string, writer io.Writer) error {
+func (v *azureBlobVolume) Index(ctx context.Context, prefix string, writer io.Writer) error {
params := storage.ListBlobsParameters{
Prefix: prefix,
Include: &storage.IncludeBlobDataset{Metadata: true},
}
- for {
- resp, err := v.container.ListBlobs(params)
+ for page := 1; ; page++ {
+ err := ctx.Err()
+ if err != nil {
+ return err
+ }
+ resp, err := v.listBlobs(page, params)
if err != nil {
return err
}
continue
}
modtime := time.Time(b.Properties.LastModified)
- if b.Properties.ContentLength == 0 && modtime.Add(azureWriteRaceInterval).After(time.Now()) {
+ if b.Properties.ContentLength == 0 && modtime.Add(v.WriteRaceInterval.Duration()).After(time.Now()) {
// A new zero-length blob is probably
// just a new non-empty blob that
// hasn't committed its data yet (see
}
}
-// Trash a Keep block.
-func (v *AzureBlobVolume) Trash(loc string) error {
- if v.ReadOnly {
- return MethodDisabledError
+// call v.container.ListBlobs, retrying if needed.
+func (v *azureBlobVolume) listBlobs(page int, params storage.ListBlobsParameters) (resp storage.BlobListResponse, err error) {
+ for i := 0; i < v.ListBlobsMaxAttempts; i++ {
+ resp, err = v.container.ListBlobs(params)
+ err = v.translateError(err)
+ if err == errVolumeUnavailable {
+ v.logger.Printf("ListBlobs: will retry page %d in %s after error: %s", page, v.ListBlobsRetryDelay, err)
+ time.Sleep(time.Duration(v.ListBlobsRetryDelay))
+ continue
+ } else {
+ break
+ }
}
+ return
+}
+// Trash a Keep block.
+func (v *azureBlobVolume) BlockTrash(loc string) error {
// Ideally we would use If-Unmodified-Since, but that
// particular condition seems to be ignored by Azure. Instead,
// we get the Etag before checking Mtime, and use If-Match to
}
if t, err := v.Mtime(loc); err != nil {
return err
- } else if time.Since(t) < theConfig.BlobSignatureTTL.Duration() {
+ } else if time.Since(t) < v.cluster.Collections.BlobSigningTTL.Duration() {
return nil
}
- // If TrashLifetime == 0, just delete it
- if theConfig.TrashLifetime == 0 {
+ // If BlobTrashLifetime == 0, just delete it
+ if v.cluster.Collections.BlobTrashLifetime == 0 {
return v.container.DeleteBlob(loc, &storage.DeleteBlobOptions{
IfMatch: props.Etag,
})
// Otherwise, mark as trash
return v.container.SetBlobMetadata(loc, storage.BlobMetadata{
- "expires_at": fmt.Sprintf("%d", time.Now().Add(theConfig.TrashLifetime.Duration()).Unix()),
+ "expires_at": fmt.Sprintf("%d", time.Now().Add(v.cluster.Collections.BlobTrashLifetime.Duration()).Unix()),
}, &storage.SetBlobMetadataOptions{
IfMatch: props.Etag,
})
}
-// Untrash a Keep block.
-// Delete the expires_at metadata attribute
-func (v *AzureBlobVolume) Untrash(loc string) error {
+// BlockUntrash deletes the expires_at metadata attribute for the
+// specified block blob.
+func (v *azureBlobVolume) BlockUntrash(hash string) error {
// if expires_at does not exist, return NotFoundError
- metadata, err := v.container.GetBlobMetadata(loc)
+ metadata, err := v.container.GetBlobMetadata(hash)
if err != nil {
return v.translateError(err)
}
// reset expires_at metadata attribute
metadata["expires_at"] = ""
- err = v.container.SetBlobMetadata(loc, metadata, nil)
+ err = v.container.SetBlobMetadata(hash, metadata, nil)
return v.translateError(err)
}
-// Status returns a VolumeStatus struct with placeholder data.
-func (v *AzureBlobVolume) Status() *VolumeStatus {
- return &VolumeStatus{
- DeviceNum: 1,
- BytesFree: BlockSize * 1000,
- BytesUsed: 1,
- }
-}
-
-// String returns a volume label, including the container name.
-func (v *AzureBlobVolume) String() string {
- return fmt.Sprintf("azure-storage-container:%+q", v.ContainerName)
-}
-
-// Writable returns true, unless the -readonly flag was on when the
-// volume was added.
-func (v *AzureBlobVolume) Writable() bool {
- return !v.ReadOnly
-}
-
-// Replication returns the replication level of the container, as
-// specified by the -azure-storage-replication argument.
-func (v *AzureBlobVolume) Replication() int {
- 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 {
+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
+ return errVolumeUnavailable
case strings.Contains(err.Error(), "Not Found"):
// "storage: service returned without a response body (404 Not Found)"
return os.ErrNotExist
+ case strings.Contains(err.Error(), "ErrorCode=BlobNotFound"):
+ // "storage: service returned error: StatusCode=404, ErrorCode=BlobNotFound, ErrorMessage=The specified blob does not exist.\n..."
+ return os.ErrNotExist
default:
return err
}
var keepBlockRegexp = regexp.MustCompile(`^[0-9a-f]{32}$`)
-func (v *AzureBlobVolume) isKeepBlock(s string) bool {
+func (v *azureBlobVolume) isKeepBlock(s string) bool {
return keepBlockRegexp.MatchString(s)
}
-// EmptyTrash looks for trashed blocks that exceeded TrashLifetime
+// EmptyTrash looks for trashed blocks that exceeded BlobTrashLifetime
// and deletes them from the volume.
-func (v *AzureBlobVolume) EmptyTrash() {
+func (v *azureBlobVolume) EmptyTrash() {
var bytesDeleted, bytesInTrash int64
var blocksDeleted, blocksInTrash int64
expiresAt, err := strconv.ParseInt(b.Metadata["expires_at"], 10, 64)
if err != nil {
- log.Printf("EmptyTrash: ParseInt(%v): %v", b.Metadata["expires_at"], err)
+ v.logger.Printf("EmptyTrash: ParseInt(%v): %v", b.Metadata["expires_at"], err)
return
}
IfMatch: b.Properties.Etag,
})
if err != nil {
- log.Printf("EmptyTrash: DeleteBlob(%v): %v", b.Name, err)
+ v.logger.Printf("EmptyTrash: DeleteBlob(%v): %v", b.Name, err)
return
}
atomic.AddInt64(&blocksDeleted, 1)
}
var wg sync.WaitGroup
- todo := make(chan storage.Blob, theConfig.EmptyTrashWorkers)
- for i := 0; i < 1 || i < theConfig.EmptyTrashWorkers; i++ {
+ todo := make(chan storage.Blob, v.cluster.Collections.BlobDeleteConcurrency)
+ for i := 0; i < v.cluster.Collections.BlobDeleteConcurrency; i++ {
wg.Add(1)
go func() {
defer wg.Done()
}
params := storage.ListBlobsParameters{Include: &storage.IncludeBlobDataset{Metadata: true}}
- for {
- resp, err := v.container.ListBlobs(params)
+ for page := 1; ; page++ {
+ resp, err := v.listBlobs(page, params)
if err != nil {
- log.Printf("EmptyTrash: ListBlobs: %v", err)
+ v.logger.Printf("EmptyTrash: ListBlobs: %v", err)
break
}
for _, b := range resp.Blobs {
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)
+ v.logger.Printf("EmptyTrash stats for %v: Deleted %v bytes in %v blocks. Remaining in trash: %v bytes in %v blocks.", v.DeviceID(), bytesDeleted, blocksDeleted, bytesInTrash-bytesDeleted, blocksInTrash-blocksDeleted)
}
// InternalStats returns bucket I/O and API call counters.
-func (v *AzureBlobVolume) InternalStats() interface{} {
+func (v *azureBlobVolume) InternalStats() interface{} {
return &v.container.stats
}
if err, ok := err.(storage.AzureStorageServiceError); ok {
errType = errType + fmt.Sprintf(" %d (%s)", err.StatusCode, err.Code)
}
- log.Printf("errType %T, err %s", err, err)
s.statsTicker.TickErr(err, errType)
}
}
func (c *azureContainer) Exists() (bool, error) {
+ c.stats.TickOps("exists")
c.stats.Tick(&c.stats.Ops)
ok, err := c.ctr.Exists()
c.stats.TickErr(err)
}
func (c *azureContainer) GetBlobMetadata(bname string) (storage.BlobMetadata, error) {
+ c.stats.TickOps("get_metadata")
c.stats.Tick(&c.stats.Ops, &c.stats.GetMetadataOps)
b := c.ctr.GetBlobReference(bname)
err := b.GetMetadata(nil)
}
func (c *azureContainer) GetBlobProperties(bname string) (*storage.BlobProperties, error) {
+ c.stats.TickOps("get_properties")
c.stats.Tick(&c.stats.Ops, &c.stats.GetPropertiesOps)
b := c.ctr.GetBlobReference(bname)
err := b.GetProperties(nil)
}
func (c *azureContainer) GetBlob(bname string) (io.ReadCloser, error) {
+ c.stats.TickOps("get")
c.stats.Tick(&c.stats.Ops, &c.stats.GetOps)
b := c.ctr.GetBlobReference(bname)
rdr, err := b.Get(nil)
c.stats.TickErr(err)
- return NewCountingReader(rdr, c.stats.TickInBytes), err
+ return newCountingReader(rdr, c.stats.TickInBytes), err
}
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)
b := c.ctr.GetBlobReference(bname)
rdr, err := b.GetRange(&storage.GetBlobRangeOptions{
GetBlobOptions: opts,
})
c.stats.TickErr(err)
- return NewCountingReader(rdr, c.stats.TickInBytes), err
+ return newCountingReader(rdr, c.stats.TickInBytes), err
}
// If we give it an io.Reader that doesn't also have a Len() int
}
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)
if size != 0 {
rdr = &readerWithAzureLen{
- Reader: NewCountingReader(rdr, c.stats.TickOutBytes),
+ Reader: newCountingReader(rdr, c.stats.TickOutBytes),
len: size,
}
}
}
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)
b := c.ctr.GetBlobReference(bname)
b.Metadata = m
}
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.ctr.ListBlobs(params)
c.stats.TickErr(err)
}
func (c *azureContainer) DeleteBlob(bname string, opts *storage.DeleteBlobOptions) error {
+ c.stats.TickOps("delete")
c.stats.Tick(&c.stats.Ops, &c.stats.DelOps)
b := c.ctr.GetBlobReference(bname)
err := b.Delete(opts)
projects / arvados.git / blobdiff