private final Future<?> delegate;

    FutureAsCancellable(Future<?> delegate) {
      this.delegate = delegate;
    }

    @Override
    @SuppressWarnings("Interruption") // We are propagating an interrupt from a caller.
    public void cancel(boolean mayInterruptIfRunning) {
      delegate.cancel(mayInterruptIfRunning);
    }

    @Override
    public boolean isCancelled() {

    }

    private void recordOutputCancellation(boolean interruptIfRunning) {
      wasCancelled = true;
      // If all the futures were cancelled with interruption, cancel the input futures
      // with interruption; otherwise cancel without
      if (!interruptIfRunning) {
        shouldInterrupt = false;
      }
      recordCompletion();
    }

    }

    private void recordOutputCancellation(boolean interruptIfRunning) {
      wasCancelled = true;
      // If all the futures were cancelled with interruption, cancel the input futures
      // with interruption; otherwise cancel without
      if (!interruptIfRunning) {
        shouldInterrupt = false;
      }
      recordCompletion();
    }

// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

including but not limited to the risks and costs of program errors,
compliance with applicable laws, damage to or loss of data, programs
or equipment, and unavailability or interruption of operations.

6. DISCLAIMER OF LIABILITY

EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, AND TO THE EXTENT
PERMITTED BY APPLICABLE LAW, NEITHER RECIPIENT NOR ANY CONTRIBUTORS

    super(futures.size());
    this.futures = checkNotNull(futures);
    this.allMustSucceed = allMustSucceed;
    this.collectsValues = collectsValues;
  }

  @Override
  @SuppressWarnings("Interruption") // We are propagating an interrupt from a caller.
  protected final void afterDone() {
    super.afterDone();

    @RetainedLocalRef ImmutableCollection<? extends Future<?>> localFutures = futures;

OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

   * @return {@code false} if the step could not be cancelled, typically because it has already
   *     completed normally; {@code true} otherwise
   */
  @CanIgnoreReturnValue
  @SuppressWarnings("Interruption") // We are propagating an interrupt from a caller.
  public boolean cancel(boolean mayInterruptIfRunning) {
    logger.get().log(FINER, "cancelling {0}", this);
    boolean cancelled = future.cancel(mayInterruptIfRunning);

    * In order to safely upgrade an existing Kubernetes cluster without interruption of volume attach/detach logic:
        * First upgrade the master to Kubernetes v1.3.
            * This will start the new attach/detach controller.

For a **web API**, it normally involves putting it in a **remote machine**, with a **server program** that provides good performance, stability, etc, so that your **users** can **access** the application efficiently and without interruptions or problems.

This is in contrast to the **development** stages, where you are constantly changing the code, breaking it and fixing it, stopping and restarting the development server, etc.

## Deployment Strategies