Decommissiong is a mechanism in MinIO to drain older pools (usually with old hardware) and migrate the content from such pools to a newer pools (usually better hardware). Decommissioning spreads the data across all pools - for example, if you decommission `pool1`, all the data from `pool1` spreads across `pool2` and `pool3`.

## Features

    } catch (ExecutionException e) {
      throw new AssertionError(e);
    }
  }

  static void verifyThreadWasNotInterrupted() {
    assertFalse(Thread.currentThread().isInterrupted());
  }

  static void clearInterrupt() {
    Thread.interrupted();
  }

  /**
   * Retrieves the result of a {@code Future} known to be done but uses the {@code get(long,
   * TimeUnit)} overload in order to test that method.

                    t.url = args[ai];
                }
            }

            assertEquals(expectedUrl, t.url, "URL should be correctly parsed");
            assertEquals(2, t.numThreads, "Thread count should be parsed");
            assertEquals(5, t.numIter, "Iteration count should be parsed");
            assertEquals(100L, t.delay, "Delay should be parsed");
        }

        @Test

                    builder.directory(shellContext.cwd.get().toFile());
                    Process process = builder.start();
                    Thread out = new Thread(new StreamGobbler(process.getInputStream(), shellContext.writer));
                    Thread err = new Thread(new StreamGobbler(process.getErrorStream(), shellContext.logger::error));
                    out.start();
                    err.start();

    assertEquals(1, listenerLatch.getCount());
    assertFalse(task.isDone());
    assertFalse(task.isCancelled());

    // Start the task to put it in the RUNNING state.  Have to use a separate
    // thread because the task will block on the task latch after unblocking
    // the run latch.
    exec.execute(task);
    runLatch.await();
    assertEquals(1, listenerLatch.getCount());
    assertFalse(task.isDone());

    val atomicTags = AtomicReference<Tags>(tags)
    val result =
      atomicTags.computeIfAbsent(String::class) {
        // 'Race' by making another computeIfAbsent call. In practice this would be another thread.
        assertThat(atomicTags.computeIfAbsent(Integer::class) { 5 as Integer }).isEqualTo(5)
        "a"
      }
    assertThat(result).isEqualTo("a")
    assertThat(atomicTags.get()[String::class]).isEqualTo("a")

    private long lastHealthCheck = System.currentTimeMillis();

    // Advanced health monitoring
    private final ScheduledExecutorService healthCheckExecutor = Executors.newSingleThreadScheduledExecutor(r -> {
        Thread t = new Thread(r, "SmbTransportPool-HealthCheck");
        t.setDaemon(true);
        return t;
    });
    private ScheduledFuture<?> healthCheckTask;
    private volatile boolean healthCheckingEnabled = true;

 * invoke methods, they invoke methods on the {@code ForwardingQueue}.
 *
 * <p>The {@code standard} methods are not guaranteed to be thread-safe, even when all of the
 * methods that they depend on are thread-safe.
 *
 * @author Mike Bostock
 * @author Louis Wasserman
 * @since 2.0
 */
@GwtCompatible

    assertEquals(1, listenerLatch.getCount());
    assertFalse(task.isDone());
    assertFalse(task.isCancelled());

    // Start the task to put it in the RUNNING state.  Have to use a separate
    // thread because the task will block on the task latch after unblocking
    // the run latch.
    exec.execute(task);
    runLatch.await();
    assertEquals(1, listenerLatch.getCount());
    assertFalse(task.isDone());

 * invoke methods, they invoke methods on the {@code ForwardingBlockingDeque}.
 *
 * <p>The {@code standard} methods are not guaranteed to be thread-safe, even when all of the
 * methods that they depend on are thread-safe.
 *
 * @author Emily Soldal
 * @since 21.0 (since 14.0 as {@link com.google.common.collect.ForwardingBlockingDeque})
 */
@J2ktIncompatible
@GwtIncompatible