All of these can be accessed via Prometheus dashboard. A sample list of exposed metrics along with their definition is available on our public demo server at

```sh
curl https://play.min.io/minio/v2/metrics/cluster
```

### List of metrics reported Cluster and Bucket level

   * implementation; otherwise refreshes will be performed during unrelated cache read and write
   * operations.
   *
   * <p>Currently automatic refreshes are performed when the first stale request for an entry
   * occurs. The request triggering refresh will make a synchronous call to {@link
   * CacheLoader#reload}
   * to obtain a future of the new value. If the returned future is already complete, it is returned

   * runs quickly, since the row key is provided. However, {@code column(columnKey).size()} takes
   * longer, since an iteration across all row keys occurs.
   *
   * <p>Note that this implementation is not synchronized. If multiple threads access this table
   * concurrently and one of the threads modifies the table, it must be synchronized externally.
   *

     */
    public static QueryStringBuilder getQueryStringBuilder() {
        return getComponent(QUERY_STRING_BUILDER);
    }

    /**
     * Gets the curl helper component.
     * @return The curl helper.
     */
    public static CurlHelper getCurlHelper() {
        return getComponent(CURL_HELPER);
    }

    /**
     * Gets the language helper component.

The only client
this is known to affect is curl when you use -d with JSON but don't set a
content type, helpfully sends "application/x-www-urlencoded", which is not
correct.
Other client authors should double check that you are sending proper
accept and content type headers, or set no value (in which case JSON is the
default).
An example using curl:
<code>curl -H "Content-Type: application/json" -XPOST -d

	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' Makefile | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-40s\033[0m %s\n", $$1, $$2}'

getdeps: ## fetch necessary dependencies
	@mkdir -p ${GOPATH}/bin
	@echo "Installing golangci-lint" && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOLANGCI_DIR)

crosscompile: ## cross compile minio
	@(env bash $(PWD)/buildscripts/cross-compile.sh)

verifiers: lint check-gen

     * @param si the starting index in the source array
     * @param slim the limit index in the source array
     * @return the decoded String
     * @throws IOException if a decoding error occurs
     */
    public static String dec_utf8(final byte[] src, int si, final int slim) throws IOException {
        final char[] uni = new char[slim - si];
        int ui, ch;

Job status can also be viewed in a browser by navigating to the YARN ResourceManager Web UI and clicking on job history server information.

### **4.2 WordCount**

WordCount is a simple program that counts how often a word occurs in a text file. The code builds a dataset of (String, Int) pairs called counts, and saves the dataset to a file.

    } catch (Throwable t) {
      logger.log(
          Level.INFO,
          "Failed to start reference finalizer thread."
              + " Reference cleanup will only occur when new references are created.",
          t);
    }

    this.threadStarted = threadStarted;
  }

  @Override
  public void close() {
    frqRef.enqueue();
    cleanUp();
  }

 *   <li>Extracting child URLs and adding them to the queue using {@link #storeChildUrls(Set, String, int)}
 *       or {@link #storeChildUrl(String, String, float, int)}.</li>
 *   <li>Handling exceptions that may occur during the crawling process.</li>
 * </ol>
 *
 * <p>
 * The thread also manages the active thread count using {@code crawlerContext.activeThreadCountLock}
 * and provides methods for logging messages using {@link LogHelper}.