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Azure sink: avoid overwriting existing files

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This commit is contained in:
chrislu 2024-07-17 23:13:47 -07:00
parent 86d92a42b4
commit 7a75928e7d
1 changed files with 12 additions and 1 deletions
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13
weed/replication/sink/azuresink/azure_sink.go
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@ -5,8 +5,10 @@ import (
"context"
"fmt"
"github.com/seaweedfs/seaweedfs/weed/replication/repl_util"
"net/http"
"net/url"
"strings"
"time"
"github.com/Azure/azure-storage-blob-go/azblob"
"github.com/seaweedfs/seaweedfs/weed/filer"
@ -109,7 +111,16 @@ func (g *AzureSink) CreateEntry(key string, entry *filer_pb.Entry, signatures []
// Azure Storage account's container.
appendBlobURL := g.containerURL.NewAppendBlobURL(key)
_, err := appendBlobURL.Create(context.Background(), azblob.BlobHTTPHeaders{}, azblob.Metadata{}, azblob.BlobAccessConditions{}, azblob.BlobTagsMap{}, azblob.ClientProvidedKeyOptions{}, azblob.ImmutabilityPolicyOptions{})
accessCondition := azblob.BlobAccessConditions{}
if entry.Attributes!=nil && entry.Attributes.Mtime>0 {
accessCondition.ModifiedAccessConditions.IfUnmodifiedSince = time.Unix(entry.Attributes.Mtime, 0)
}
res, err := appendBlobURL.Create(context.Background(), azblob.BlobHTTPHeaders{}, azblob.Metadata{}, accessCondition, azblob.BlobTagsMap{}, azblob.ClientProvidedKeyOptions{}, azblob.ImmutabilityPolicyOptions{})
if res != nil && res.StatusCode() == http.StatusPreconditionFailed {
glog.V(0).Infof("skip overwriting %s/%s: %v", g.container, key, err)
return nil
}
if err != nil {
return err
}