* fix detach azure disk back off issue which has too big lock in failure retry condition ([#76573](https://github.com/kubernetes/kubernetes/pull/76573), [@andyzhangx](https://github.com/andyzhangx))

// It will be length 0.
func metaDataPoolGet() []byte {
	return metaDataPool.Get()[:0]
}

// metaDataPoolPut will put an unused small buffer back into the pool.
func metaDataPoolPut(buf []byte) {
	if cap(buf) >= metaDataReadDefault && cap(buf) < metaDataReadDefault*4 {
		metaDataPool.Put(buf)
	}
}

	req.Header.Set("content-encoding", "aws-chunked")
	req.Header.Set("x-amz-decoded-content-length", strconv.FormatInt(dataLength, 10))
	req.Header.Set("content-length", strconv.FormatInt(contentLength, 10))

	// Seek back to beginning.
	body.Seek(0, 0)

	// Add body
	req.Body = io.NopCloser(body)
	req.ContentLength = contentLength

	return req, nil
}

   *
   * <p><b>Note:</b> when possible, you should represent your data as an {@link
   * ImmutableDoubleArray} instead, which has an {@link ImmutableDoubleArray#asList asList} view.
   *
   * @param backingArray the array to back the list
   * @return a list view of the array
   */
  public static List<Double> asList(double... backingArray) {
    if (backingArray.length == 0) {
      return Collections.emptyList();
    }

   *
   * <p><b>Note:</b> when possible, you should represent your data as an {@link ImmutableLongArray}
   * instead, which has an {@link ImmutableLongArray#asList asList} view.
   *
   * @param backingArray the array to back the list
   * @return a list view of the array
   */
  public static List<Long> asList(long... backingArray) {
    if (backingArray.length == 0) {
      return Collections.emptyList();
    }

	line, err = b.ReadSlice('\n')
	if err == ErrBufferFull {
		// Handle the case where "\r\n" straddles the buffer.
		if len(line) > 0 && line[len(line)-1] == '\r' {
			// Put the '\r' back on buf and drop it from line.
			// Let the next call to ReadLine check for "\r\n".
			if b.r == 0 {
				// should be unreachable
				panic("bufio: tried to rewind past start of buffer")
			}
			b.r--

		// for i, c := range via {
		// 	fmt.Printf("Sofar %d: %s %s\n", i, c.Method, c.URL.String())
		// }
		// Save the last request in a redirect chain.
		lastReq = req
		// We do not follow redirect back to client application.
		if req.URL.Path == "/oauth_callback" {
			return http.ErrUseLastResponse
		}
		return nil
	}

	dexClient := http.Client{
		CheckRedirect: checkRedirect,
	}

* fix network setup in hack/local-up-cluster.sh (https://github.com/kubernetes/kubernetes/pull/60431) ([#60633](https://github.com/kubernetes/kubernetes/pull/60633), [@pohly](https://github.com/pohly))
    * better error diagnostics in hack/local-up-cluster.sh output

	st, err := remoteConn.NewStream(ctx, handlerTest, []byte(testPayload))
	errFatal(err)

	// Wait for the server to send the first response.
	<-serverSent

	// Read back from the stream and block.
	nowBlocking := make(chan struct{})
	stopBlocking := make(chan struct{})
	defer close(stopBlocking)
	go func() {
		st.Results(func(b []byte) error {
			close(nowBlocking)

		// Note that url.Parse does the unescaping
		cpSrcPath = u.Path
	}

	srcBucket, srcObject := path2BucketObject(cpSrcPath)
	// If source object is empty or bucket is empty, reply back invalid copy source.
	if srcObject == "" || srcBucket == "" {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopySource), r.URL)
		return
	}

	if vid != "" && vid != nullVersionID {