status->status = tensorflow::errors::FailedPrecondition(
        "Coordination service is not enabled.");
    return;
  }
  absl::Duration timeout;
  if (timeout_in_ms > 0) {
    timeout = absl::Milliseconds(timeout_in_ms);
  } else {
    // Block until the key-value is set or the worker shuts down.
    timeout = absl::InfiniteDuration();
  }
  auto status_or_value = coord_agent->GetKeyValue(key, timeout);

        if (logger.isDebugEnabled()) {
            logger.debug("Executor Thread Pool: {}", nThreads);
        }
        return new ThreadPoolExecutor(nThreads, nThreads, 0L, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<>(nThreads),
                new ThreadPoolExecutor.CallerRunsPolicy());
    }

    @Override
    public void store(final DataStoreParams paramMap, final Map<String, Object> dataMap) {

	if !compareSignatureV4(req.Form.Get(xhttp.AmzSignature), newSignature) {
		return ErrSignatureDoesNotMatch
	}

	r.Header.Set("x-amz-signature-age", strconv.FormatInt(UTCNow().Sub(pSignValues.Date).Milliseconds(), 10))

	return ErrNone
}

// doesSignatureMatch - Verify authorization header with calculated header in accordance with
//   - http://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-authenticating-requests.html

    public <T> T get(final Function<FesenClient, ActionFuture<T>> func) {
        int retryCount = 0;
        while (true) {
            try {
                return func.apply(this).actionGet(connTimeout, TimeUnit.MILLISECONDS);
            } catch (final IndexNotFoundException | VersionConflictEngineException e) {
                logger.debug("{} occurs.", e.getClass().getName(), e);
                throw e;

maximum concurrent requests allowed before we start slowing things down can be configured with `mc admin config set alias/ heal max_io=30` . By default the wait delay is `250ms` beyond 100 concurrent operations. This means the healer will sleep *250 milliseconds* at max for each heal operation if there are more than *100* concurrent client requests.

In most setups this is sufficient to heal the content after drive replacements. Setting `max_sleep` to a *lower* value and setting `max_io` to a...

   *
   * <pre>
   *   TimeLimiter limiter = . . .;
   *   TargetType proxy = limiter.newProxy(
   *       target, TargetType.class, 50, TimeUnit.MILLISECONDS);
   *   try {
   *     return proxy.someMethod();
   *   } catch (UncheckedTimeoutException e) {
   *     return DEFAULT_VALUE;
   *   }
   * </pre>
   *
   * @param target the object to proxy

            while (generating) {
                try {
                    final Tuple3<String, String, String> task = thumbnailTaskQueue.poll(thumbnailTaskQueueTimeout, TimeUnit.MILLISECONDS);
                    if (task == null) {
                        if (!taskList.isEmpty()) {
                            storeQueue(taskList);
                        }

                  control packets in milliseconds. Defaults to 300ms.
                format: int32
                maximum: 60000
                minimum: 10
                type: integer
              transmitInterval:
                description: The minimum transmission interval (less jitter) that
                  this system wants to use to send BFD control packets in milliseconds.
                  Defaults to 300ms

        }
        userInfoCache = CacheBuilder.newBuilder()//
                .maximumSize(userInfoCacheSize)//
                .expireAfterWrite(userCheckInterval, TimeUnit.MILLISECONDS)//
                .build(new CacheLoader<String, UserInfo>() {
                    @Override
                    public UserInfo load(final String key) throws Exception {
                        return storeUserInfo(key);

            return true;
        }

        try (Stream<Path> outputFiles = Files.walk(outputDirectory)) {
            // Not using File#lastModified() to avoid a Linux JDK8 milliseconds precision bug: JDK-8177809.
            long artifactLastModified =
                    Files.getLastModifiedTime(packagedArtifactFile.toPath()).toMillis();