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fix: log once updating dataUsageCache versions (#11190)

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also reduce usage of *bytes.Buffer for
reading `usage-cache.bin`
This commit is contained in:
Harshavardhana 2020-12-31 09:45:09 -08:00 committed by GitHub
parent c1f6ca6697
commit 3e1221a01c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 7 deletions
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13
cmd/data-usage-cache.go
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@ -17,11 +17,11 @@
package cmd
import (
"bytes"
"context"
"errors"
"fmt"
"io"
"net/http"
"path"
"path/filepath"
"strings"
@ -458,7 +458,7 @@ func (d *dataUsageCache) merge(other dataUsageCache) {
}
type objectIO interface {
GetObject(ctx context.Context, bucket, object string, startOffset int64, length int64, writer io.Writer, etag string, opts ObjectOptions) (err error)
GetObjectNInfo(ctx context.Context, bucket, object string, rs *HTTPRangeSpec, h http.Header, lockType LockType, opts ObjectOptions) (reader *GetObjectReader, err error)
PutObject(ctx context.Context, bucket, object string, data *PutObjReader, opts ObjectOptions) (objInfo ObjectInfo, err error)
}
@ -466,8 +466,7 @@ type objectIO interface {
// Only backend errors are returned as errors.
// If the object is not found or unable to deserialize d is cleared and nil error is returned.
func (d *dataUsageCache) load(ctx context.Context, store objectIO, name string) error {
var buf bytes.Buffer
err := store.GetObject(ctx, dataUsageBucket, name, 0, -1, &buf, "", ObjectOptions{})
r, err := store.GetObjectNInfo(ctx, dataUsageBucket, name, nil, http.Header{}, readLock, ObjectOptions{})
if err != nil {
switch err.(type) {
case ObjectNotFound:
@ -479,10 +478,9 @@ func (d *dataUsageCache) load(ctx context.Context, store objectIO, name string)
*d = dataUsageCache{}
return nil
}
err = d.deserialize(&buf)
if err != nil {
if err := d.deserialize(r); err != nil {
*d = dataUsageCache{}
logger.LogIf(ctx, err)
logger.LogOnceIf(ctx, err, err.Error())
}
return nil
}
@ -494,6 +492,7 @@ func (d *dataUsageCache) save(ctx context.Context, store objectIO, name string)
pw.CloseWithError(d.serializeTo(pw))
}()
defer pr.Close()
r, err := hash.NewReader(pr, -1, "", "", -1, false)
if err != nil {
return err