* Improve Azure instance metadata handling by adding caches. ([#70353](https://github.com/kubernetes/kubernetes/pull/70353), [@feiskyer](https://github.com/feiskyer))
* adding cn-northwest-1 for AWS China Ningxia region ([#70155](https://github.com/kubernetes/kubernetes/pull/70155), [@pahud](https://github.com/pahud))

      while (valueReferenceQueue.poll() != null) {}
    }

    // recency queue, shared by expiration and eviction

    /**
     * Records the relative order in which this read was performed by adding {@code entry} to the
     * recency queue. At write-time, or when the queue is full past the threshold, the queue will be
     * drained and the entries therein processed.
     *

        if (result[0] == 0) {
          distinctElements++;
        }
        this.totalCount += count;
        return (right.height == initHeight) ? this : rebalance();
      }

      // adding count to me!  No rebalance possible.
      result[0] = elemCount;
      long resultCount = (long) elemCount + count;
      checkArgument(resultCount <= Integer.MAX_VALUE);
      this.elemCount += count;

        if (tc.getConfig().isDfsConvertToFQDN()) {
            dri.fixupHost(server);
        }

        if (log.isDebugEnabled()) {
            log.debug("Adding key " + key + " to " + dr);
        }

        /*
         * Subtract the server and share from the pathConsumed so that
         * it reflects the part of the relative path consumed and not

### ConfigMap
* Volumes and environment variables populated from ConfigMap and Secret objects can now tolerate the named source object or specific keys being missing, by adding `optional: true` to the volume or environment variable source specifications. ([#39981](https://github.com/kubernetes/kubernetes/pull/39981), [@fraenkel](https://github.com/fraenkel))

	sql.WriteString("CREATE ")
	if option.Replace {
		sql.WriteString("OR REPLACE ")
	}
	sql.WriteString("VIEW ")
	m.QuoteTo(sql, name)
	sql.WriteString(" AS ")

	m.DB.Statement.AddVar(sql, option.Query)

	if option.CheckOption != "" {
		sql.WriteString(" ")
		sql.WriteString(option.CheckOption)
	}
	return m.DB.Exec(m.Explain(sql.String(), m.DB.Statement.Vars...)).Error
}

                    CIInfo ci = context.invokerRequest.ciInfo().get();
                    context.logger.info(
                            "Making this build non-interactive, because CI detected. Disable this detection by adding --force-interactive.");
                    context.logger.info("Detected CI system: '" + ci.name() + "': " + ci.message());
                    return false;
                }
            }
        }

    // Technically this listener is added after start() was called so it is a little gross, but it
    // is called within doStart() so we know that the service cannot terminate or fail concurrently
    // with adding this listener so it is impossible to miss an event that we are interested in.
    addListener(
        new Listener() {
          @Override
          public void terminated(State from) {
            executor.shutdown();

  private static final String E34 = "3-4";
  private static final String E44 = "4-4";
  private static final int NODE_COUNT = 20;
  private static final int EDGE_COUNT = 20;
  // TODO(user): Consider adding both error messages from here and {@link AbstractNetworkTest}
  // in one class (may be a utility class for error messages).
  private static final String ERROR_PARALLEL_EDGE = "connected by a different edge";

				Gid:      1000,
				Uname:    "rawr",
				Gname:    "dsnet",
				ModTime:  time.Unix(0, 0),
				Format:   FormatGNU,
			}, nil},
			testClose{nil},
		},
		// TODO(dsnet): Re-enable this test when adding sparse support.
		// See https://golang.org/issue/22735
		/*
			}, {
				file: "testdata/gnu-nil-sparse-data.tar",
				tests: []testFnc{
					testHeader{Header{
						Typeflag:    TypeGNUSparse,