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add s3 replication sink

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This commit is contained in:
Chris Lu 2018-10-03 23:36:52 -07:00
parent 56a5d5af8d
commit e8ef501f02
8 changed files with 369 additions and 46 deletions
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17
weed/command/filer_replication.go
View file

@ -6,6 +6,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/server"
"github.com/spf13/viper"
"strings"
"github.com/chrislusf/seaweedfs/weed/replication/sink"
)
func init() {
@ -57,7 +58,21 @@ func runFilerReplicate(cmd *Command, args []string) bool {
}
}
replicator := replication.NewReplicator(config.Sub("source.filer"), config.Sub("sink.filer"))
var dataSink sink.ReplicationSink
for _, sk := range sink.Sinks {
if config.GetBool("sink." + sk.GetName() + ".enabled") {
viperSub := config.Sub("sink." + sk.GetName())
if err := sk.Initialize(viperSub); err != nil {
glog.Fatalf("Failed to initialize sink for %s: %+v",
sk.GetName(), err)
}
glog.V(0).Infof("Configure sink to %s", sk.GetName())
dataSink = sk
break
}
}
replicator := replication.NewReplicator(config.Sub("source.filer"), dataSink)
for {
key, m, err := notificationInput.ReceiveMessage()

14
weed/command/scaffold.go
View file

@ -161,7 +161,7 @@ grpcAddress = "localhost:18888"
directory = "/buckets" # all files under this directory tree are replicated
[notification.kafka]
enabled = true
enabled = false
hosts = [
"localhost:9092"
]
@ -170,12 +170,22 @@ offsetFile = "./last.offset"
offsetSaveIntervalSeconds = 10
[sink.filer]
enabled = true
enabled = false
grpcAddress = "localhost:18888"
directory = "/backup" # all replicated files are under this directory tree
replication = ""
collection = ""
ttlSec = 0
[sink.s3]
# See https://docs.aws.amazon.com/sdk-for-go/v1/developer-guide/sessions.html
# default loads credentials from the shared credentials file (~/.aws/credentials).
enabled = false
aws_access_key_id = "" # if empty, loads from the shared credentials file (~/.aws/credentials).
aws_secret_access_key = "" # if empty, loads from the shared credentials file (~/.aws/credentials).
region = "us-east-2"
bucket = "your_bucket_name" # an existing bucket
directory = "" # destination directory (do not prefix or suffix with "/")
`
)

29
weed/replication/replicator.go
View file

@ -6,8 +6,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/replication/sink"
"github.com/chrislusf/seaweedfs/weed/replication/sink/filersink"
"github.com/chrislusf/seaweedfs/weed/replication/source"
"github.com/chrislusf/seaweedfs/weed/replication/source"
"github.com/chrislusf/seaweedfs/weed/util"
"github.com/chrislusf/seaweedfs/weed/glog"
)
@ -17,18 +16,15 @@ type Replicator struct {
source *source.FilerSource
}
func NewReplicator(sourceConfig, sinkConfig util.Configuration) *Replicator {
sink := &filersink.FilerSink{}
sink.Initialize(sinkConfig)
func NewReplicator(sourceConfig util.Configuration, dataSink sink.ReplicationSink) *Replicator {
source := &source.FilerSource{}
source.Initialize(sourceConfig)
sink.SetSourceFiler(source)
dataSink.SetSourceFiler(source)
return &Replicator{
sink: sink,
sink: dataSink,
source: source,
}
}
@ -39,22 +35,19 @@ func (r *Replicator) Replicate(key string, message *filer_pb.EventNotification)
}
key = filepath.Join(r.sink.GetSinkToDirectory(), key[len(r.source.Dir):])
if message.OldEntry != nil && message.NewEntry == nil {
return r.sink.DeleteEntry(key, message.OldEntry, message.DeleteChunks)
return r.sink.DeleteEntry(key, message.OldEntry.IsDirectory, message.DeleteChunks)
}
if message.OldEntry == nil && message.NewEntry != nil {
return r.sink.CreateEntry(key, message.NewEntry)
}
if existingEntry, err := r.sink.LookupEntry(key); err == nil {
if message.OldEntry == nil && message.NewEntry == nil {
glog.V(0).Infof("message %+v existingEntry: %+v", message, existingEntry)
return r.sink.DeleteEntry(key, existingEntry, true)
}
return r.sink.UpdateEntry(key, message.OldEntry, message.NewEntry, existingEntry, message.DeleteChunks)
if message.OldEntry == nil && message.NewEntry == nil {
glog.V(0).Infof("weird message %+v", message)
return nil
}
glog.V(0).Infof("key:%s, message %+v", key, message)
if message.OldEntry == nil && message.NewEntry == nil {
return nil
foundExisting, err := r.sink.UpdateEntry(key, message.OldEntry, message.NewEntry, message.DeleteChunks)
if foundExisting {
return err
}
return r.sink.CreateEntry(key, message.NewEntry)

33
weed/replication/sink/filersink/filer_sink.go
View file

@ -9,6 +9,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/replication/source"
"github.com/chrislusf/seaweedfs/weed/util"
"github.com/chrislusf/seaweedfs/weed/replication/sink"
)
type FilerSink struct {
@ -21,6 +22,14 @@ type FilerSink struct {
dataCenter string
}
func init(){
sink.Sinks = append(sink.Sinks, &FilerSink{})
}
func (fs *FilerSink) GetName() string {
return "filer"
}
func (fs *FilerSink) GetSinkToDirectory() string {
return fs.dir
}
@ -49,7 +58,7 @@ func (fs *FilerSink) initialize(grpcAddress string, dir string,
return nil
}
func (fs *FilerSink) DeleteEntry(key string, entry *filer_pb.Entry, deleteIncludeChunks bool) error {
func (fs *FilerSink) DeleteEntry(key string, isDirectory, deleteIncludeChunks bool) error {
return fs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
dir, name := filer2.FullPath(key).DirAndName()
@ -57,7 +66,7 @@ func (fs *FilerSink) DeleteEntry(key string, entry *filer_pb.Entry, deleteInclud
request := &filer_pb.DeleteEntryRequest{
Directory: dir,
Name: name,
IsDirectory: entry.IsDirectory,
IsDirectory: isDirectory,
IsDeleteData: deleteIncludeChunks,
}
@ -121,13 +130,14 @@ func (fs *FilerSink) CreateEntry(key string, entry *filer_pb.Entry) error {
})
}
func (fs *FilerSink) LookupEntry(key string) (entry *filer_pb.Entry, err error) {
func (fs *FilerSink) UpdateEntry(key string, oldEntry, newEntry *filer_pb.Entry, deleteIncludeChunks bool) (foundExistingEntry bool, err error) {
ctx := context.Background()
dir, name := filer2.FullPath(key).DirAndName()
// read existing entry
var existingEntry *filer_pb.Entry
err = fs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.LookupDirectoryEntryRequest{
@ -142,24 +152,15 @@ func (fs *FilerSink) LookupEntry(key string) (entry *filer_pb.Entry, err error)
return err
}
entry = resp.Entry
existingEntry = resp.Entry
return nil
})
if err != nil {
return nil, fmt.Errorf("lookup %s: %v", key, err)
return false, fmt.Errorf("lookup %s: %v", key, err)
}
return entry, nil
}
func (fs *FilerSink) UpdateEntry(key string, oldEntry, newEntry, existingEntry *filer_pb.Entry, deleteIncludeChunks bool) (err error) {
ctx := context.Background()
dir, _ := filer2.FullPath(key).DirAndName()
glog.V(0).Infof("oldEntry %+v, newEntry %+v, existingEntry: %+v", oldEntry, newEntry, existingEntry)
if filer2.ETag(newEntry.Chunks) == filer2.ETag(existingEntry.Chunks) {
@ -179,13 +180,13 @@ func (fs *FilerSink) UpdateEntry(key string, oldEntry, newEntry, existingEntry *
// replicate the chunks that are new in the source
replicatedChunks, err := fs.replicateChunks(newChunks)
if err != nil {
return fmt.Errorf("replicte %s chunks error: %v", key, err)
return true, fmt.Errorf("replicte %s chunks error: %v", key, err)
}
existingEntry.Chunks = append(existingEntry.Chunks, replicatedChunks...)
}
// save updated meta data
return fs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
return true, fs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.UpdateEntryRequest{
Directory: dir,

12
weed/replication/sink/replication_sink.go
View file

@ -3,13 +3,19 @@ package sink
import (
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/replication/source"
"github.com/chrislusf/seaweedfs/weed/util"
)
type ReplicationSink interface {
DeleteEntry(key string, entry *filer_pb.Entry, deleteIncludeChunks bool) error
GetName() string
Initialize(configuration util.Configuration) error
DeleteEntry(key string, isDirectory, deleteIncludeChunks bool) error
CreateEntry(key string, entry *filer_pb.Entry) error
UpdateEntry(key string, oldEntry, newEntry, existingEntry *filer_pb.Entry, deleteIncludeChunks bool) error
LookupEntry(key string) (entry *filer_pb.Entry, err error)
UpdateEntry(key string, oldEntry, newEntry *filer_pb.Entry, deleteIncludeChunks bool) (foundExistingEntry bool, err error)
GetSinkToDirectory() string
SetSourceFiler(s *source.FilerSource)
}
var (
Sinks []ReplicationSink
)

123
weed/replication/sink/s3sink/s3_sink.go Normal file
View file

@ -0,0 +1,123 @@
package S3Sink
import (
"fmt"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/replication/source"
"github.com/chrislusf/seaweedfs/weed/util"
"github.com/aws/aws-sdk-go/service/s3/s3iface"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/aws/session"
"sync"
"github.com/chrislusf/seaweedfs/weed/filer2"
"github.com/chrislusf/seaweedfs/weed/replication/sink"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
)
type S3Sink struct {
err error
conn s3iface.S3API
region string
bucket string
dir string
filerSource *source.FilerSource
}
func init() {
sink.Sinks = append(sink.Sinks, &S3Sink{})
}
func (s3sink *S3Sink) GetName() string {
return "filer"
}
func (s3sink *S3Sink) GetSinkToDirectory() string {
return s3sink.dir
}
func (s3sink *S3Sink) Initialize(configuration util.Configuration) error {
return s3sink.initialize(
configuration.GetString("aws_access_key_id"),
configuration.GetString("aws_secret_access_key"),
configuration.GetString("region"),
configuration.GetString("bucket"),
configuration.GetString("directory"),
)
}
func (s3sink *S3Sink) SetSourceFiler(s *source.FilerSource) {
s3sink.filerSource = s
}
func (s3sink *S3Sink) initialize(awsAccessKeyId, aswSecretAccessKey, region, bucket, dir string) (error) {
s3sink.region = region
s3sink.bucket = bucket
s3sink.dir = dir
config := &aws.Config{
Region: aws.String(s3sink.region),
}
if awsAccessKeyId != "" && aswSecretAccessKey != "" {
config.Credentials = credentials.NewStaticCredentials(awsAccessKeyId, aswSecretAccessKey, "")
}
sess, err := session.NewSession(config)
if err != nil {
return fmt.Errorf("create aws session: %v", err)
}
s3sink.conn = s3.New(sess)
return nil
}
func (s3sink *S3Sink) DeleteEntry(key string, isDirectory, deleteIncludeChunks bool) error {
if isDirectory {
key = key + "/"
}
return s3sink.deleteObject(key)
}
func (s3sink *S3Sink) CreateEntry(key string, entry *filer_pb.Entry) error {
uploadId, err := s3sink.createMultipartUpload(key, entry)
if err != nil {
return err
}
totalSize := filer2.TotalSize(entry.Chunks)
chunkViews := filer2.ViewFromChunks(entry.Chunks, 0, int(totalSize))
var parts []*s3.CompletedPart
var wg sync.WaitGroup
for chunkIndex, chunk := range chunkViews {
partId := chunkIndex + 1
wg.Add(1)
go func(chunk *filer2.ChunkView) {
defer wg.Done()
if part, uploadErr := s3sink.uploadPart(key, uploadId, partId, chunk); uploadErr != nil {
err = uploadErr
} else {
parts = append(parts, part)
}
}(chunk)
}
wg.Wait()
if err != nil {
s3sink.abortMultipartUpload(key, uploadId)
return err
}
return s3sink.completeMultipartUpload(key, uploadId, parts)
}
func (s3sink *S3Sink) UpdateEntry(key string, oldEntry, newEntry *filer_pb.Entry, deleteIncludeChunks bool) (foundExistingEntry bool, err error) {
// TODO improve efficiency
return false, nil
}

165
weed/replication/sink/s3sink/s3_write.go Normal file
View file

@ -0,0 +1,165 @@
package S3Sink
import (
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/aws"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/aws/aws-sdk-go/aws/awserr"
"fmt"
"io"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/filer2"
"github.com/chrislusf/seaweedfs/weed/util"
"bytes"
)
func (s3sink *S3Sink) deleteObject(key string) error {
input := &s3.DeleteObjectInput{
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
}
result, err := s3sink.conn.DeleteObject(input)
if err == nil {
glog.V(0).Infof("[%s] delete %s: %v", s3sink.bucket, key, result)
} else {
glog.Errorf("[%s] delete %s: %v", s3sink.bucket, key, err)
}
return err
}
func (s3sink *S3Sink) createMultipartUpload(key string, entry *filer_pb.Entry) (uploadId string, err error) {
input := &s3.CreateMultipartUploadInput{
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
ContentType: aws.String(entry.Attributes.Mime),
}
result, err := s3sink.conn.CreateMultipartUpload(input)
if err == nil {
glog.V(0).Infof("[%s] createMultipartUpload %s: %v", s3sink.bucket, key, result)
} else {
glog.Errorf("[%s] createMultipartUpload %s: %v", s3sink.bucket, key, err)
return "", err
}
return *result.UploadId, err
}
func (s3sink *S3Sink) abortMultipartUpload(key, uploadId string) error {
input := &s3.AbortMultipartUploadInput{
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
UploadId: aws.String(uploadId),
}
result, err := s3sink.conn.AbortMultipartUpload(input)
if err != nil {
if aerr, ok := err.(awserr.Error); ok {
switch aerr.Code() {
case s3.ErrCodeNoSuchUpload:
glog.Errorf("[%s] abortMultipartUpload %s: %v %v", s3sink.bucket, key, s3.ErrCodeNoSuchUpload, aerr.Error())
default:
glog.Errorf("[%s] abortMultipartUpload %s: %v", s3sink.bucket, key, aerr.Error())
}
} else {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
glog.Errorf("[%s] abortMultipartUpload %s: %v", s3sink.bucket, key, aerr.Error())
}
return err
}
glog.V(0).Infof("[%s] abortMultipartUpload %s: %v", s3sink.bucket, key, result)
return nil
}
// To complete multipart upload
func (s3sink *S3Sink) completeMultipartUpload(key, uploadId string, parts []*s3.CompletedPart) error {
input := &s3.CompleteMultipartUploadInput{
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
UploadId: aws.String(uploadId),
MultipartUpload: &s3.CompletedMultipartUpload{
Parts: parts,
},
}
result, err := s3sink.conn.CompleteMultipartUpload(input)
if err == nil {
glog.V(0).Infof("[%s] completeMultipartUpload %s: %v", s3sink.bucket, key, result)
} else {
glog.Errorf("[%s] completeMultipartUpload %s: %v", s3sink.bucket, key, err)
}
return err
}
// To upload a part
func (s3sink *S3Sink) uploadPart(key, uploadId string, partId int, chunk *filer2.ChunkView) (*s3.CompletedPart, error) {
var readSeeker io.ReadSeeker
readSeeker, err := s3sink.buildReadSeeker(chunk)
if err != nil {
glog.Errorf("[%s] uploadPart %s %d read: %v", s3sink.bucket, key, partId, err)
return nil, fmt.Errorf("[%s] uploadPart %s %d read: %v", s3sink.bucket, key, partId, err)
}
input := &s3.UploadPartInput{
Body: readSeeker,
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
PartNumber: aws.Int64(int64(partId)),
UploadId: aws.String(uploadId),
}
result, err := s3sink.conn.UploadPart(input)
if err == nil {
glog.V(0).Infof("[%s] uploadPart %s %d upload: %v", s3sink.bucket, key, partId, result)
} else {
glog.Errorf("[%s] uploadPart %s %d upload: %v", s3sink.bucket, key, partId, err)
}
part := &s3.CompletedPart{
ETag: result.ETag,
PartNumber: aws.Int64(int64(partId)),
}
return part, err
}
// To upload a part by copying byte range from an existing object as data source
func (s3sink *S3Sink) uploadPartCopy(key, uploadId string, partId int64, copySource string, sourceStart, sourceStop int) error {
input := &s3.UploadPartCopyInput{
Bucket: aws.String(s3sink.bucket),
CopySource: aws.String(fmt.Sprintf("/%s/%s", s3sink.bucket, copySource)),
CopySourceRange: aws.String(fmt.Sprintf("bytes=%d-%d", sourceStart, sourceStop)),
Key: aws.String(key),
PartNumber: aws.Int64(partId),
UploadId: aws.String(uploadId),
}
result, err := s3sink.conn.UploadPartCopy(input)
if err == nil {
glog.V(0).Infof("[%s] uploadPartCopy %s %d: %v", s3sink.bucket, key, partId, result)
} else {
glog.Errorf("[%s] uploadPartCopy %s %d: %v", s3sink.bucket, key, partId, err)
}
return err
}
func (s3sink *S3Sink) buildReadSeeker(chunk *filer2.ChunkView) (io.ReadSeeker, error) {
fileUrl, err := s3sink.filerSource.LookupFileId(chunk.FileId)
if err != nil {
return nil, err
}
buf := make([]byte, chunk.Size)
util.ReadUrl(fileUrl, chunk.Offset, int(chunk.Size), buf)
return bytes.NewReader(buf), nil
}

22
weed/replication/source/filer_source.go
View file

@ -34,7 +34,7 @@ func (fs *FilerSource) initialize(grpcAddress string, dir string) (err error) {
return nil
}
func (fs *FilerSource) ReadPart(part string) (filename string, header http.Header, readCloser io.ReadCloser, err error) {
func (fs *FilerSource) LookupFileId(part string) (fileUrl string, err error) {
vid2Locations := make(map[string]*filer_pb.Locations)
@ -56,18 +56,28 @@ func (fs *FilerSource) ReadPart(part string) (filename string, header http.Heade
})
if err != nil {
glog.V(1).Infof("replication lookup volume id %s: %v", vid, err)
return "", nil, nil, fmt.Errorf("replication lookup volume id %s: %v", vid, err)
glog.V(1).Infof("LookupFileId volume id %s: %v", vid, err)
return "", fmt.Errorf("LookupFileId volume id %s: %v", vid, err)
}
locations := vid2Locations[vid]
if locations == nil || len(locations.Locations) == 0 {
glog.V(1).Infof("replication locate volume id %s: %v", vid, err)
return "", nil, nil, fmt.Errorf("replication locate volume id %s: %v", vid, err)
glog.V(1).Infof("LookupFileId locate volume id %s: %v", vid, err)
return "", fmt.Errorf("LookupFileId locate volume id %s: %v", vid, err)
}
fileUrl := fmt.Sprintf("http://%s/%s", locations.Locations[0].Url, part)
fileUrl = fmt.Sprintf("http://%s/%s", locations.Locations[0].Url, part)
return
}
func (fs *FilerSource) ReadPart(part string) (filename string, header http.Header, readCloser io.ReadCloser, err error) {
fileUrl, err := fs.LookupFileId(part)
if err != nil {
return "", nil, nil, err
}
filename, header, readCloser, err = util.DownloadFile(fileUrl)