//   like shadowing a numpy array.
// * We do not provide TF_OK since it is not strictly necessary and we
//   are not optimizing for convenience.
// * We make assumption that one session has one graph.  This should be
//   fine since we have the ability to run sub-graphs.
// * We could allow NULL for some arguments (e.g., NULL options arg).
//   However since convenience is not a primary goal, we don't do this.

          <defaultValue></defaultValue>
          <identifier>true</identifier>
        </field>
        <field>
          <name>extension</name>
          <version>1.1.0+</version>
          <type>String</type>
          <description>The file extension of the sub-artifact. Each classifier and extension pair may only appear once.</description>

       * timeoutFuture.setException() calls run(). That reentrancy would already be harmless, since
       * timeoutFuture can be set (and delegate cancelled) only once. (And "set only once" is
       * important for other reasons: run() can still be invoked concurrently in different threads,
       * even with the above null checks.)
       */
      timeoutFutureRef = null;

public abstract class NtlmAuthenticator {

    private static NtlmAuthenticator auth;

    private String url;
    private SmbAuthException sae;


    /**
     * Set the default <tt>NtlmAuthenticator</tt>. Once the default authenticator is set it cannot be changed. Calling
     * this metho again will have no effect.
     * 
     * @param a
     */

    public synchronized static void setDefault ( NtlmAuthenticator a ) {

- [https://hadoop.apache.org/docs/r3.1.1/hadoop-aws/tools/hadoop-aws/committers.html](https://hadoop.apache.org/docs/r3.1.1/hadoop-aws/tools/hadoop-aws/committers.html)

Once the config changes are applied, proceed to restart **Hadoop** services.

![hdfs-services](https://github.com/minio/minio/blob/master/docs/bigdata/images/image7.png?raw=true "hdfs restart services")

 * sure that these (potentially overridden) methods are invoked only once, and instance created by those methods are
 * memorized and kept as long as supplier instance is kept open.
 * <p>
 * This class is not thread safe and must be used from one thread only, while the constructed {@link RepositorySystem}
 * is thread safe.
 * <p>

### TLS with SNI Extension

**Only one process** in the server can be listening on a specific **port** in a specific **IP address**. There could be other processes listening on other ports in the same IP address, but only one for each combination of IP address and port.

TLS (HTTPS) uses the specific port `443` by default. So that's the port we would need.

  // Type of deployment condition.
  optional string type = 1;

  // Status of the condition, one of True, False, Unknown.
  optional string status = 2;

  // The last time this condition was updated.
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time lastUpdateTime = 6;

  // Last time the condition transitioned from one status to another.
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time lastTransitionTime = 7;

	if w == nil { // when response recorder nil, this is an active request
		hstats.currentS3Requests.Inc(api)
		bh.httpStats[bucket] = hstats
		return
	} // else {
	hstats.currentS3Requests.Dec(api) // decrement this once we have the response recorder.

	hstats.totalS3Requests.Inc(api)
	code := w.StatusCode

	switch {
	case code == 0:
	case code == 499:
		// 499 is a good error, shall be counted as canceled.

    /**
     * Returns a plan to attempt if canceling this plan was a mistake! The returned plan is not
     * canceled, even if this plan is canceled.
     */
    fun retry(): Plan?
  }

  /**
   * What to do once a plan has executed.
   *
   * If [nextPlan] is not-null, another attempt should be made by following it. If [throwable] is
   * non-null, it should be reported to the user should all further attempts fail.
   *