# MinIO Multi-user Quickstart Guide [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io)

MinIO supports multiple long term users in addition to default user created during server startup. New users can be added after server starts up, and server can be configured to deny or allow access to buckets and resources to each of these users. This document explains how to add/remove users and modify their access rights.

## Get started

        if (result > Integer.MAX_VALUE || result < Integer.MIN_VALUE) {
            failedValidations.incrementAndGet();
            integerOverflowsPrevented.incrementAndGet();
            log.warn("Integer overflow in addition: {} + {} = {}", a, b, result);
            throw new SmbException("Integer overflow detected");
        }
        return (int) result;
    }

    /**
     * Safely multiply integers checking for overflow

        assertTrue(verifyCacheEntry.isComplete());
        assertEquals(2, verifyCacheEntry.getChildren().size());

        // Step 8: Test change notifications
        // Simulate file addition
        directoryLeaseManager.handleDirectoryChange(directoryPath, "newfile.txt", DirectoryChangeNotifier.DirectoryChangeType.FILE_ADDED);

        // Cache should be invalidated
        assertFalse(cacheEntry.isComplete());

  The scheduling hints allow the scheduler to only retry scheduling a Pod
  that was previously rejected by the VolemeZone plugin if  addition/update of node, 
  addition/update of PV, addition/update of PVC, or addition of SC matches pod's topology settings. ([#124996](https://github.com/kubernetes/kubernetes/pull/124996), [@Gekko0114](https://github.com/Gekko0114)) [SIG Scheduling and Storage]

	//
	// PAX extends USTAR by writing a special file with Typeflag TypeXHeader
	// preceding the original header. This file contains a set of key-value
	// records, which are used to overcome USTAR's shortcomings, in addition to
	// providing the ability to have sub-second resolution for timestamps.
	//
	// Some newer formats add their own extensions to PAX by defining their

 * 2^64 + x}). The methods for which signedness is not an issue are in {@link Longs}, as well as
 * signed versions of methods for which signedness is an issue.
 *
 * <p>In addition, this class provides several static methods for converting a {@code long} to a
 * {@code String} and a {@code String} to a {@code long} that treat the {@code long} as an unsigned
 * number.
 *

time scanning up to a sixteenth of the namespace. Object versions marked `PENDING` or `FAILED` are re-queued for replication.

Replication speed depends on the cluster load, number of objects in the object store as well as storage speed. In addition, any bandwidth limits set via `mc admin bucket remote add` could also contribute to replication speed. The number of workers used for replication defaults to 100. Based on network bandwidth and system load, the number of workers used in replication...

  types of tests cannot be setup, since the container used to run them cannot be
  reached or started.

  All of these operations will produce their own unique errors in the absence of
  a coordinated offline strategy. In addition, efforts to unite these failing
  behaviors behind a consistent user interface is much, much more difficult if
  the system can't tell whether it has access to the network required by these
  operations.

   * </ul>
   *
   * <p>The overall principle is to continue to treat every checked exception as a checked
   * exception, every unchecked exception as an unchecked exception, and every error as an error. In
   * addition, the cause of any {@code ExecutionException} is wrapped in order to ensure that the
   * new stack trace matches that of the current thread.
   *

 * java.util.concurrent}, {@code java.util.regex}, {@code com.google.common.base}, {@code
 * com.google.common.collect} and {@code com.google.common.primitives}. In addition, if the type
 * exposes at least one public static final constant of the same type, one of the constants will be
 * used; or if the class exposes a public parameter-less constructor then it will be "new"d and
 * returned.
 *