//
// SPDX-License-Identifier: AGPL-3.0
-package main
+package keepstore
import (
"bytes"
"github.com/sirupsen/logrus"
)
-// S3AWSVolume implements Volume using an S3 bucket.
-type S3AWSVolume struct {
+func init() {
+ driver["S3"] = news3Volume
+}
+
+const (
+ s3DefaultReadTimeout = arvados.Duration(10 * time.Minute)
+ s3DefaultConnectTimeout = arvados.Duration(time.Minute)
+ maxClockSkew = 600 * time.Second
+ nearlyRFC1123 = "Mon, 2 Jan 2006 15:04:05 GMT"
+ s3downloaderPartSize = 5 * 1024 * 1024
+ s3downloaderReadConcurrency = 13
+ s3uploaderPartSize = 5 * 1024 * 1024
+ s3uploaderWriteConcurrency = 5
+)
+
+var (
+ errS3TrashDisabled = fmt.Errorf("trash function is disabled because Collections.BlobTrashLifetime=0 and DriverParameters.UnsafeDelete=false")
+ s3AWSKeepBlockRegexp = regexp.MustCompile(`^[0-9a-f]{32}$`)
+ s3AWSZeroTime time.Time
+)
+
+// s3Volume implements Volume using an S3 bucket.
+type s3Volume struct {
arvados.S3VolumeDriverParameters
AuthToken string // populated automatically when IAMRole is used
AuthExpiration time.Time // populated automatically when IAMRole is used
- cluster *arvados.Cluster
- volume arvados.Volume
- logger logrus.FieldLogger
- metrics *volumeMetricsVecs
- bucket *s3AWSbucket
- region string
- startOnce sync.Once
+ cluster *arvados.Cluster
+ volume arvados.Volume
+ logger logrus.FieldLogger
+ metrics *volumeMetricsVecs
+ bufferPool *bufferPool
+ bucket *s3AWSbucket
+ region string
+ startOnce sync.Once
}
// s3bucket wraps s3.bucket and counts I/O and API usage stats. The
mu sync.Mutex
}
-// chooseS3VolumeDriver distinguishes between the old goamz driver and
-// aws-sdk-go based on the UseAWSS3v2Driver feature flag
-func chooseS3VolumeDriver(cluster *arvados.Cluster, volume arvados.Volume, logger logrus.FieldLogger, metrics *volumeMetricsVecs) (Volume, error) {
- v := &S3Volume{cluster: cluster, volume: volume, metrics: metrics}
- err := json.Unmarshal(volume.DriverParameters, v)
- if err != nil {
- return nil, err
- }
- if v.UseAWSS3v2Driver {
- logger.Debugln("Using AWS S3 v2 driver")
- return newS3AWSVolume(cluster, volume, logger, metrics)
+func (v *s3Volume) isKeepBlock(s string) (string, bool) {
+ if v.PrefixLength > 0 && len(s) == v.PrefixLength+33 && s[:v.PrefixLength] == s[v.PrefixLength+1:v.PrefixLength*2+1] {
+ s = s[v.PrefixLength+1:]
}
- logger.Debugln("Using goamz S3 driver")
- return newS3Volume(cluster, volume, logger, metrics)
+ return s, s3AWSKeepBlockRegexp.MatchString(s)
}
-const (
- PartSize = 5 * 1024 * 1024
- ReadConcurrency = 13
- WriteConcurrency = 5
-)
-
-var s3AWSKeepBlockRegexp = regexp.MustCompile(`^[0-9a-f]{32}$`)
-var s3AWSZeroTime time.Time
-
-func (v *S3AWSVolume) isKeepBlock(s string) bool {
- return s3AWSKeepBlockRegexp.MatchString(s)
+// Return the key used for a given loc. If PrefixLength==0 then
+// key("abcdef0123") is "abcdef0123", if PrefixLength==3 then key is
+// "abc/abcdef0123", etc.
+func (v *s3Volume) key(loc string) string {
+ if v.PrefixLength > 0 && v.PrefixLength < len(loc)-1 {
+ return loc[:v.PrefixLength] + "/" + loc
+ } else {
+ return loc
+ }
}
-func newS3AWSVolume(cluster *arvados.Cluster, volume arvados.Volume, logger logrus.FieldLogger, metrics *volumeMetricsVecs) (Volume, error) {
- v := &S3AWSVolume{cluster: cluster, volume: volume, metrics: metrics}
- err := json.Unmarshal(volume.DriverParameters, v)
+func news3Volume(params newVolumeParams) (volume, error) {
+ v := &s3Volume{
+ cluster: params.Cluster,
+ volume: params.ConfigVolume,
+ metrics: params.MetricsVecs,
+ bufferPool: params.BufferPool,
+ }
+ err := json.Unmarshal(params.ConfigVolume.DriverParameters, v)
if err != nil {
return nil, err
}
- v.logger = logger.WithField("Volume", v.String())
+ v.logger = params.Logger.WithField("Volume", v.DeviceID())
return v, v.check("")
}
-func (v *S3AWSVolume) translateError(err error) error {
- if aerr, ok := err.(awserr.Error); ok {
- switch aerr.Code() {
- case "NotFound":
+func (v *s3Volume) translateError(err error) error {
+ if _, ok := err.(*aws.RequestCanceledError); ok {
+ return context.Canceled
+ } else if aerr, ok := err.(awserr.Error); ok {
+ if aerr.Code() == "NotFound" {
return os.ErrNotExist
- case "NoSuchKey":
+ } else if aerr.Code() == "NoSuchKey" {
return os.ErrNotExist
}
}
return err
}
-// safeCopy calls CopyObjectRequest, and checks the response to make sure the
-// copy succeeded and updated the timestamp on the destination object
+// safeCopy calls CopyObjectRequest, and checks the response to make
+// sure the copy succeeded and updated the timestamp on the
+// destination object
//
-// (If something goes wrong during the copy, the error will be embedded in the
-// 200 OK response)
-func (v *S3AWSVolume) safeCopy(dst, src string) error {
+// (If something goes wrong during the copy, the error will be
+// embedded in the 200 OK response)
+func (v *s3Volume) safeCopy(dst, src string) error {
input := &s3.CopyObjectInput{
Bucket: aws.String(v.bucket.bucket),
ContentType: aws.String("application/octet-stream"),
return nil
}
-func (v *S3AWSVolume) check(ec2metadataHostname string) error {
+func (v *s3Volume) check(ec2metadataHostname string) error {
if v.Bucket == "" {
return errors.New("DriverParameters: Bucket must be provided")
}
if v.Endpoint != "" && service == "s3" {
return aws.Endpoint{
URL: v.Endpoint,
- SigningRegion: v.Region,
+ SigningRegion: region,
}, nil
} else if service == "ec2metadata" && ec2metadataHostname != "" {
return aws.Endpoint{
URL: ec2metadataHostname,
}, nil
+ } else {
+ return defaultResolver.ResolveEndpoint(service, region)
}
-
- return defaultResolver.ResolveEndpoint(service, region)
}
cfg.EndpointResolver = aws.EndpointResolverFunc(myCustomResolver)
}
-
+ if v.Region == "" {
+ // Endpoint is already specified (otherwise we would
+ // have errored out above), but Region is also
+ // required by the aws sdk, in order to determine
+ // SignatureVersions.
+ v.Region = "us-east-1"
+ }
cfg.Region = v.Region
// Zero timeouts mean "wait forever", which is a bad
creds := aws.NewChainProvider(
[]aws.CredentialsProvider{
- aws.NewStaticCredentialsProvider(v.AccessKey, v.SecretKey, v.AuthToken),
+ aws.NewStaticCredentialsProvider(v.AccessKeyID, v.SecretAccessKey, v.AuthToken),
ec2rolecreds.New(ec2metadata.New(cfg)),
})
}
// Set up prometheus metrics
- lbls := prometheus.Labels{"device_id": v.GetDeviceID()}
+ lbls := prometheus.Labels{"device_id": v.DeviceID()}
v.bucket.stats.opsCounters, v.bucket.stats.errCounters, v.bucket.stats.ioBytes = v.metrics.getCounterVecsFor(lbls)
return nil
}
-// String implements fmt.Stringer.
-func (v *S3AWSVolume) String() string {
- return fmt.Sprintf("s3-bucket:%+q", v.Bucket)
-}
-
-// GetDeviceID returns a globally unique ID for the storage bucket.
-func (v *S3AWSVolume) GetDeviceID() string {
+// DeviceID returns a globally unique ID for the storage bucket.
+func (v *s3Volume) DeviceID() string {
return "s3://" + v.Endpoint + "/" + v.Bucket
}
-// Compare the given data with the stored data.
-func (v *S3AWSVolume) Compare(ctx context.Context, loc string, expect []byte) error {
- errChan := make(chan error, 1)
- go func() {
- _, err := v.Head("recent/" + loc)
- errChan <- err
- }()
- var err error
- select {
- case <-ctx.Done():
- return ctx.Err()
- case err = <-errChan:
- }
- if err != nil {
- // Checking for "loc" itself here would interfere with
- // future GET requests.
- //
- // On AWS, if X doesn't exist, a HEAD or GET request
- // for X causes X's non-existence to be cached. Thus,
- // if we test for X, then create X and return a
- // signature to our client, the client might still get
- // 404 from all keepstores when trying to read it.
- //
- // To avoid this, we avoid doing HEAD X or GET X until
- // we know X has been written.
- //
- // Note that X might exist even though recent/X
- // doesn't: for example, the response to HEAD recent/X
- // might itself come from a stale cache. In such
- // cases, we will return a false negative and
- // PutHandler might needlessly create another replica
- // on a different volume. That's not ideal, but it's
- // better than passing the eventually-consistent
- // problem on to our clients.
- return v.translateError(err)
- }
-
- input := &s3.GetObjectInput{
- Bucket: aws.String(v.bucket.bucket),
- Key: aws.String(loc),
- }
-
- req := v.bucket.svc.GetObjectRequest(input)
- result, err := req.Send(ctx)
- if err != nil {
- return v.translateError(err)
- }
- return v.translateError(compareReaderWithBuf(ctx, result.Body, expect, loc[:32]))
-}
-
// EmptyTrash looks for trashed blocks that exceeded BlobTrashLifetime
// and deletes them from the volume.
-func (v *S3AWSVolume) EmptyTrash() {
- if v.cluster.Collections.BlobDeleteConcurrency < 1 {
- return
- }
-
+func (v *s3Volume) EmptyTrash() {
var bytesInTrash, blocksInTrash, bytesDeleted, blocksDeleted int64
// Define "ready to delete" as "...when EmptyTrash started".
startT := time.Now()
emptyOneKey := func(trash *s3.Object) {
- loc := strings.TrimPrefix(*trash.Key, "trash/")
- if !v.isKeepBlock(loc) {
+ key := strings.TrimPrefix(*trash.Key, "trash/")
+ loc, isblk := v.isKeepBlock(key)
+ if !isblk {
return
}
atomic.AddInt64(&bytesInTrash, *trash.Size)
atomic.AddInt64(&blocksInTrash, 1)
- trashT := *(trash.LastModified)
- recent, err := v.Head("recent/" + loc)
+ trashT := *trash.LastModified
+ recent, err := v.head("recent/" + key)
if err != nil && os.IsNotExist(v.translateError(err)) {
- v.logger.Warnf("EmptyTrash: found trash marker %q but no %q (%s); calling Untrash", trash.Key, "recent/"+loc, err)
- err = v.Untrash(loc)
+ v.logger.Warnf("EmptyTrash: found trash marker %q but no %q (%s); calling Untrash", *trash.Key, "recent/"+key, err)
+ err = v.BlockUntrash(loc)
if err != nil {
v.logger.WithError(err).Errorf("EmptyTrash: Untrash(%q) failed", loc)
}
return
} else if err != nil {
- v.logger.WithError(err).Warnf("EmptyTrash: HEAD %q failed", "recent/"+loc)
+ v.logger.WithError(err).Warnf("EmptyTrash: HEAD %q failed", "recent/"+key)
return
}
if trashT.Sub(*recent.LastModified) < v.cluster.Collections.BlobSigningTTL.Duration() {
if age := startT.Sub(*recent.LastModified); age >= v.cluster.Collections.BlobSigningTTL.Duration()-time.Duration(v.RaceWindow) {
- // recent/loc is too old to protect
+ // recent/key is too old to protect
// loc from being Trashed again during
// the raceWindow that starts if we
// delete trash/X now.
// < BlobSigningTTL - raceWindow) is
// necessary to avoid starvation.
v.logger.Infof("EmptyTrash: detected old race for %q, calling fixRace + Touch", loc)
- v.fixRace(loc)
- v.Touch(loc)
+ v.fixRace(key)
+ v.BlockTouch(loc)
return
}
- _, err := v.Head(loc)
+ _, err := v.head(key)
if os.IsNotExist(err) {
v.logger.Infof("EmptyTrash: detected recent race for %q, calling fixRace", loc)
- v.fixRace(loc)
+ v.fixRace(key)
return
} else if err != nil {
v.logger.WithError(err).Warnf("EmptyTrash: HEAD %q failed", loc)
atomic.AddInt64(&bytesDeleted, *trash.Size)
atomic.AddInt64(&blocksDeleted, 1)
- _, err = v.Head(loc)
+ _, err = v.head(*trash.Key)
if err == nil {
v.logger.Warnf("EmptyTrash: HEAD %q succeeded immediately after deleting %q", loc, loc)
return
}
if !os.IsNotExist(v.translateError(err)) {
- v.logger.WithError(err).Warnf("EmptyTrash: HEAD %q failed", loc)
+ v.logger.WithError(err).Warnf("EmptyTrash: HEAD %q failed", key)
return
}
- err = v.bucket.Del("recent/" + loc)
+ err = v.bucket.Del("recent/" + key)
if err != nil {
- v.logger.WithError(err).Warnf("EmptyTrash: error deleting %q", "recent/"+loc)
+ v.logger.WithError(err).Warnf("EmptyTrash: error deleting %q", "recent/"+key)
}
}
if err := trashL.Error(); err != nil {
v.logger.WithError(err).Error("EmptyTrash: lister failed")
}
- v.logger.Infof("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.Infof("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)
}
// fixRace(X) is called when "recent/X" exists but "X" doesn't
-// exist. If the timestamps on "recent/"+loc and "trash/"+loc indicate
-// there was a race between Put and Trash, fixRace recovers from the
-// race by Untrashing the block.
-func (v *S3AWSVolume) fixRace(loc string) bool {
- trash, err := v.Head("trash/" + loc)
+// exist. If the timestamps on "recent/X" and "trash/X" indicate there
+// was a race between Put and Trash, fixRace recovers from the race by
+// Untrashing the block.
+func (v *s3Volume) fixRace(key string) bool {
+ trash, err := v.head("trash/" + key)
if err != nil {
if !os.IsNotExist(v.translateError(err)) {
- v.logger.WithError(err).Errorf("fixRace: HEAD %q failed", "trash/"+loc)
+ v.logger.WithError(err).Errorf("fixRace: HEAD %q failed", "trash/"+key)
}
return false
}
- recent, err := v.Head("recent/" + loc)
+ recent, err := v.head("recent/" + key)
if err != nil {
- v.logger.WithError(err).Errorf("fixRace: HEAD %q failed", "recent/"+loc)
+ v.logger.WithError(err).Errorf("fixRace: HEAD %q failed", "recent/"+key)
return false
}
return false
}
- v.logger.Infof("fixRace: %q: trashed at %s but touched at %s (age when trashed = %s < %s)", loc, trashTime, recentTime, ageWhenTrashed, v.cluster.Collections.BlobSigningTTL)
- v.logger.Infof("fixRace: copying %q to %q to recover from race between Put/Touch and Trash", "recent/"+loc, loc)
- err = v.safeCopy(loc, "trash/"+loc)
+ v.logger.Infof("fixRace: %q: trashed at %s but touched at %s (age when trashed = %s < %s)", key, trashTime, recentTime, ageWhenTrashed, v.cluster.Collections.BlobSigningTTL)
+ v.logger.Infof("fixRace: copying %q to %q to recover from race between Put/Touch and Trash", "recent/"+key, key)
+ err = v.safeCopy(key, "trash/"+key)
if err != nil {
v.logger.WithError(err).Error("fixRace: copy failed")
return false
return true
}
-func (v *S3AWSVolume) Head(loc string) (result *s3.HeadObjectOutput, err error) {
+func (v *s3Volume) head(key string) (result *s3.HeadObjectOutput, err error) {
input := &s3.HeadObjectInput{
Bucket: aws.String(v.bucket.bucket),
- Key: aws.String(loc),
+ Key: aws.String(key),
}
req := v.bucket.svc.HeadObjectRequest(input)
return
}
-// Get a block: copy the block data into buf, and return the number of
-// bytes copied.
-func (v *S3AWSVolume) Get(ctx context.Context, loc string, buf []byte) (int, error) {
- return getWithPipe(ctx, loc, buf, v)
-}
-
-func (v *S3AWSVolume) readWorker(ctx context.Context, loc string) (rdr io.ReadCloser, err error) {
- buf := make([]byte, 0, 67108864)
- awsBuf := aws.NewWriteAtBuffer(buf)
-
- downloader := s3manager.NewDownloaderWithClient(v.bucket.svc, func(u *s3manager.Downloader) {
- u.PartSize = PartSize
- u.Concurrency = ReadConcurrency
- })
-
- v.logger.Debugf("Partsize: %d; Concurrency: %d\n", downloader.PartSize, downloader.Concurrency)
-
- _, err = downloader.DownloadWithContext(ctx, awsBuf, &s3.GetObjectInput{
- Bucket: aws.String(v.bucket.bucket),
- Key: aws.String(loc),
- })
- v.bucket.stats.TickOps("get")
- v.bucket.stats.Tick(&v.bucket.stats.Ops, &v.bucket.stats.GetOps)
- v.bucket.stats.TickErr(err)
+// BlockRead reads a Keep block that has been stored as a block blob
+// in the S3 bucket.
+func (v *s3Volume) BlockRead(ctx context.Context, hash string, writeTo io.Writer) (int, error) {
+ key := v.key(hash)
+ buf, err := v.bufferPool.GetContext(ctx)
if err != nil {
- return nil, v.translateError(err)
+ return 0, err
}
- buf = awsBuf.Bytes()
-
- rdr = NewCountingReader(bytes.NewReader(buf), v.bucket.stats.TickInBytes)
- return
-}
+ defer v.bufferPool.Put(buf)
-// ReadBlock implements BlockReader.
-func (v *S3AWSVolume) ReadBlock(ctx context.Context, loc string, w io.Writer) error {
- rdr, err := v.readWorker(ctx, loc)
-
- if err == nil {
- _, err2 := io.Copy(w, rdr)
- if err2 != nil {
- return err2
+ streamer := newStreamWriterAt(writeTo, 65536, buf)
+ defer streamer.Close()
+ err = v.readWorker(ctx, key, streamer)
+ if err != nil {
+ err = v.translateError(err)
+ if !os.IsNotExist(err) {
+ return 0, err
+ }
+ if streamer.WroteAt() > 0 {
+ return 0, errors.New("bug? readWorker returned ErrNotExist after writing to streamer")
}
- return err
- }
- err = v.translateError(err)
- if !os.IsNotExist(err) {
- return err
- }
+ _, err = v.head("recent/" + key)
+ err = v.translateError(err)
+ if err != nil {
+ // If we can't read recent/X, there's no point in
+ // trying fixRace. Give up.
+ return 0, err
+ }
+ if !v.fixRace(key) {
+ err = os.ErrNotExist
+ return 0, err
+ }
- _, err = v.Head("recent/" + loc)
- err = v.translateError(err)
- if err != nil {
- // If we can't read recent/X, there's no point in
- // trying fixRace. Give up.
- return err
- }
- if !v.fixRace(loc) {
- err = os.ErrNotExist
- return err
+ err = v.readWorker(ctx, key, streamer)
+ if err != nil {
+ v.logger.Warnf("reading %s after successful fixRace: %s", hash, err)
+ err = v.translateError(err)
+ return 0, err
+ }
}
-
- rdr, err = v.readWorker(ctx, loc)
+ err = streamer.Close()
if err != nil {
- v.logger.Warnf("reading %s after successful fixRace: %s", loc, err)
- err = v.translateError(err)
- return err
+ return 0, v.translateError(err)
}
+ return streamer.Wrote(), nil
+}
- _, err = io.Copy(w, rdr)
-
- return err
+func (v *s3Volume) readWorker(ctx context.Context, key string, dst io.WriterAt) error {
+ downloader := s3manager.NewDownloaderWithClient(v.bucket.svc, func(u *s3manager.Downloader) {
+ u.PartSize = s3downloaderPartSize
+ u.Concurrency = s3downloaderReadConcurrency
+ })
+ count, err := downloader.DownloadWithContext(ctx, dst, &s3.GetObjectInput{
+ Bucket: aws.String(v.bucket.bucket),
+ Key: aws.String(key),
+ })
+ v.bucket.stats.TickOps("get")
+ v.bucket.stats.Tick(&v.bucket.stats.Ops, &v.bucket.stats.GetOps)
+ v.bucket.stats.TickErr(err)
+ v.bucket.stats.TickInBytes(uint64(count))
+ return v.translateError(err)
}
-func (v *S3AWSVolume) writeObject(ctx context.Context, name string, r io.Reader) error {
+func (v *s3Volume) writeObject(ctx context.Context, key string, r io.Reader) error {
if r == nil {
// r == nil leads to a memory violation in func readFillBuf in
// aws-sdk-go-v2@v0.23.0/service/s3/s3manager/upload.go
uploadInput := s3manager.UploadInput{
Bucket: aws.String(v.bucket.bucket),
- Key: aws.String(name),
+ Key: aws.String(key),
Body: r,
}
- if len(name) == 32 {
+ if loc, ok := v.isKeepBlock(key); ok {
var contentMD5 string
- md5, err := hex.DecodeString(name)
+ md5, err := hex.DecodeString(loc)
if err != nil {
- return err
+ return v.translateError(err)
}
contentMD5 = base64.StdEncoding.EncodeToString(md5)
uploadInput.ContentMD5 = &contentMD5
// Experimentation indicated that using concurrency 5 yields the best
// throughput, better than higher concurrency (10 or 13) by ~5%.
// Defining u.BufferProvider = s3manager.NewBufferedReadSeekerWriteToPool(64 * 1024 * 1024)
- // is detrimental to througput (minus ~15%).
+ // is detrimental to throughput (minus ~15%).
uploader := s3manager.NewUploaderWithClient(v.bucket.svc, func(u *s3manager.Uploader) {
- u.PartSize = PartSize
- u.Concurrency = WriteConcurrency
+ u.PartSize = s3uploaderPartSize
+ u.Concurrency = s3uploaderWriteConcurrency
})
// Unlike the goamz S3 driver, we don't need to precompute ContentSHA256:
v.bucket.stats.Tick(&v.bucket.stats.Ops, &v.bucket.stats.PutOps)
v.bucket.stats.TickErr(err)
- return err
+ return v.translateError(err)
}
// Put writes a block.
-func (v *S3AWSVolume) Put(ctx context.Context, loc string, block []byte) error {
- return putWithPipe(ctx, loc, block, v)
-}
-
-// WriteBlock implements BlockWriter.
-func (v *S3AWSVolume) WriteBlock(ctx context.Context, loc string, rdr io.Reader) error {
- if v.volume.ReadOnly {
- return MethodDisabledError
- }
-
- r := NewCountingReader(rdr, v.bucket.stats.TickOutBytes)
- err := v.writeObject(ctx, loc, r)
+func (v *s3Volume) BlockWrite(ctx context.Context, hash string, data []byte) error {
+ // Do not use putWithPipe here; we want to pass an io.ReadSeeker to the S3
+ // sdk to avoid memory allocation there. See #17339 for more information.
+ rdr := bytes.NewReader(data)
+ r := newCountingReaderAtSeeker(rdr, v.bucket.stats.TickOutBytes)
+ key := v.key(hash)
+ err := v.writeObject(ctx, key, r)
if err != nil {
return err
}
- return v.writeObject(ctx, "recent/"+loc, nil)
+ return v.writeObject(ctx, "recent/"+key, nil)
}
type s3awsLister struct {
return
}
-// IndexTo writes a complete list of locators with the given prefix
+// Index writes a complete list of locators with the given prefix
// for which Get() can retrieve data.
-func (v *S3AWSVolume) IndexTo(prefix string, writer io.Writer) error {
+func (v *s3Volume) Index(ctx context.Context, prefix string, writer io.Writer) error {
+ prefix = v.key(prefix)
// Use a merge sort to find matching sets of X and recent/X.
dataL := s3awsLister{
Logger: v.logger,
Stats: &v.bucket.stats,
}
for data, recent := dataL.First(), recentL.First(); data != nil && dataL.Error() == nil; data = dataL.Next() {
+ if ctx.Err() != nil {
+ return ctx.Err()
+ }
if *data.Key >= "g" {
// Conveniently, "recent/*" and "trash/*" are
// lexically greater than all hex-encoded data
// over all of them needlessly with dataL.
break
}
- if !v.isKeepBlock(*data.Key) {
+ loc, isblk := v.isKeepBlock(*data.Key)
+ if !isblk {
continue
}
// We truncate sub-second precision here. Otherwise
// timestamps will never match the RFC1123-formatted
// Last-Modified values parsed by Mtime().
- fmt.Fprintf(writer, "%s+%d %d\n", *data.Key, *data.Size, stamp.LastModified.Unix()*1000000000)
+ fmt.Fprintf(writer, "%s+%d %d\n", loc, *data.Size, stamp.LastModified.Unix()*1000000000)
}
return dataL.Error()
}
// Mtime returns the stored timestamp for the given locator.
-func (v *S3AWSVolume) Mtime(loc string) (time.Time, error) {
- _, err := v.Head(loc)
+func (v *s3Volume) Mtime(loc string) (time.Time, error) {
+ key := v.key(loc)
+ _, err := v.head(key)
if err != nil {
return s3AWSZeroTime, v.translateError(err)
}
- resp, err := v.Head("recent/" + loc)
+ resp, err := v.head("recent/" + key)
err = v.translateError(err)
if os.IsNotExist(err) {
// The data object X exists, but recent/X is missing.
- err = v.writeObject(context.Background(), "recent/"+loc, nil)
+ err = v.writeObject(context.Background(), "recent/"+key, nil)
if err != nil {
- v.logger.WithError(err).Errorf("error creating %q", "recent/"+loc)
+ v.logger.WithError(err).Errorf("error creating %q", "recent/"+key)
return s3AWSZeroTime, v.translateError(err)
}
- v.logger.Infof("Mtime: created %q to migrate existing block to new storage scheme", "recent/"+loc)
- resp, err = v.Head("recent/" + loc)
+ v.logger.Infof("Mtime: created %q to migrate existing block to new storage scheme", "recent/"+key)
+ resp, err = v.head("recent/" + key)
if err != nil {
- v.logger.WithError(err).Errorf("HEAD failed after creating %q", "recent/"+loc)
+ v.logger.WithError(err).Errorf("HEAD failed after creating %q", "recent/"+key)
return s3AWSZeroTime, v.translateError(err)
}
} else if err != nil {
return *resp.LastModified, err
}
-// Status returns a *VolumeStatus representing the current in-use
-// storage capacity and a fake available capacity that doesn't make
-// the volume seem full or nearly-full.
-func (v *S3AWSVolume) Status() *VolumeStatus {
- return &VolumeStatus{
- DeviceNum: 1,
- BytesFree: BlockSize * 1000,
- BytesUsed: 1,
- }
-}
-
// InternalStats returns bucket I/O and API call counters.
-func (v *S3AWSVolume) InternalStats() interface{} {
+func (v *s3Volume) InternalStats() interface{} {
return &v.bucket.stats
}
-// Touch sets the timestamp for the given locator to the current time.
-func (v *S3AWSVolume) Touch(loc string) error {
- if v.volume.ReadOnly {
- return MethodDisabledError
- }
- _, err := v.Head(loc)
+// BlockTouch sets the timestamp for the given locator to the current time.
+func (v *s3Volume) BlockTouch(hash string) error {
+ key := v.key(hash)
+ _, err := v.head(key)
err = v.translateError(err)
- if os.IsNotExist(err) && v.fixRace(loc) {
+ if os.IsNotExist(err) && v.fixRace(key) {
// The data object got trashed in a race, but fixRace
// rescued it.
} else if err != nil {
return err
}
- err = v.writeObject(context.Background(), "recent/"+loc, nil)
+ err = v.writeObject(context.Background(), "recent/"+key, nil)
return v.translateError(err)
}
-// checkRaceWindow returns a non-nil error if trash/loc is, or might
-// be, in the race window (i.e., it's not safe to trash loc).
-func (v *S3AWSVolume) checkRaceWindow(loc string) error {
- resp, err := v.Head("trash/" + loc)
+// checkRaceWindow returns a non-nil error if trash/key is, or might
+// be, in the race window (i.e., it's not safe to trash key).
+func (v *s3Volume) checkRaceWindow(key string) error {
+ resp, err := v.head("trash/" + key)
err = v.translateError(err)
if os.IsNotExist(err) {
// OK, trash/X doesn't exist so we're not in the race
// trash/X's lifetime. The new timestamp might not
// become visible until now+raceWindow, and EmptyTrash
// is allowed to delete trash/X before then.
- return fmt.Errorf("same block is already in trash, and safe window ended %s ago", -safeWindow)
+ return fmt.Errorf("%s: same block is already in trash, and safe window ended %s ago", key, -safeWindow)
}
// trash/X exists, but it won't be eligible for deletion until
// after now+raceWindow, so it's safe to overwrite it.
}
req := b.svc.DeleteObjectRequest(input)
_, err := req.Send(context.Background())
- //err := b.Bucket().Del(path)
b.stats.TickOps("delete")
b.stats.Tick(&b.stats.Ops, &b.stats.DelOps)
b.stats.TickErr(err)
}
// Trash a Keep block.
-func (v *S3AWSVolume) Trash(loc string) error {
- if v.volume.ReadOnly {
- return MethodDisabledError
- }
+func (v *s3Volume) BlockTrash(loc string) error {
if t, err := v.Mtime(loc); err != nil {
return err
} else if time.Since(t) < v.cluster.Collections.BlobSigningTTL.Duration() {
return nil
}
+ key := v.key(loc)
if v.cluster.Collections.BlobTrashLifetime == 0 {
if !v.UnsafeDelete {
- return ErrS3TrashDisabled
+ return errS3TrashDisabled
}
- return v.translateError(v.bucket.Del(loc))
+ return v.translateError(v.bucket.Del(key))
}
- err := v.checkRaceWindow(loc)
+ err := v.checkRaceWindow(key)
if err != nil {
return err
}
- err = v.safeCopy("trash/"+loc, loc)
+ err = v.safeCopy("trash/"+key, key)
if err != nil {
return err
}
- return v.translateError(v.bucket.Del(loc))
+ return v.translateError(v.bucket.Del(key))
}
-// Untrash moves block from trash back into store
-func (v *S3AWSVolume) Untrash(loc string) error {
- err := v.safeCopy(loc, "trash/"+loc)
+// BlockUntrash moves block from trash back into store
+func (v *s3Volume) BlockUntrash(hash string) error {
+ key := v.key(hash)
+ err := v.safeCopy(key, "trash/"+key)
if err != nil {
return err
}
- err = v.writeObject(context.Background(), "recent/"+loc, nil)
+ err = v.writeObject(context.Background(), "recent/"+key, nil)
return v.translateError(err)
}
projects / arvados.git / blobdiff