hadoop YarnAuthorizationProvider 源码

  • 2022-10-20
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haddop YarnAuthorizationProvider 代码


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* to you under the Apache License, Version 2.0 (the
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*     http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.hadoop.yarn.security;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.security.authorize.AccessControlList;
import org.apache.hadoop.util.ReflectionUtils;
import org.apache.hadoop.yarn.conf.YarnConfiguration;

import org.apache.hadoop.classification.VisibleForTesting;
import java.util.List;

 * An implementation of the interface will provide authorization related
 * information and enforce permission check. It is excepted that any of the
 * methods defined in this interface should be non-blocking call and should not
 * involve expensive computation as these method could be invoked in RPC.
public abstract class YarnAuthorizationProvider {

  private static final Logger LOG =

  private static YarnAuthorizationProvider authorizer = null;

  public static YarnAuthorizationProvider getInstance(Configuration conf) {
    synchronized (YarnAuthorizationProvider.class) {
      if (authorizer == null) {
        Class<?> authorizerClass =
        authorizer =
            (YarnAuthorizationProvider) ReflectionUtils.newInstance(
              authorizerClass, conf);
        LOG.info(authorizerClass.getName() + " is instantiated.");
    return authorizer;

   * Destroy the {@link YarnAuthorizationProvider} instance.
   * This method is called only in Tests.
  public static void destroy() {
    synchronized (YarnAuthorizationProvider.class) {
      if (authorizer != null) {
        LOG.debug("{} is destroyed.", authorizer.getClass().getName());
        authorizer = null;

   * Initialize the provider. Invoked on daemon startup. DefaultYarnAuthorizer is
   * initialized based on configurations.
  public abstract void init(Configuration conf);

   * Check if user has the permission to access the target object.
   * @param accessRequest
   *          the request object which contains all the access context info.
   * @return true if user can access the object, otherwise false.

  public abstract boolean checkPermission(AccessRequest accessRequest);

   * Set permissions for the target object.
   * @param permissions
   *        A list of permissions on the target object.
   * @param ugi User who sets the permissions.
  public abstract void setPermission(List<Permission> permissions,
      UserGroupInformation ugi);

   * Set a list of users/groups who have admin access
   * @param acls  users/groups who have admin access
   * @param ugi User who sets the admin acls.
  public abstract void setAdmins(AccessControlList acls, UserGroupInformation ugi);

   * Check if the user is an admin.
   * @param ugi the user to be determined if it is an admin
   * @return true if the given user is an admin
  public abstract boolean isAdmin(UserGroupInformation ugi);


hadoop 源码目录


hadoop AMRMTokenIdentifier 源码

hadoop AMRMTokenSelector 源码

hadoop AccessRequest 源码

hadoop AccessType 源码

hadoop AdminACLsManager 源码

hadoop ConfiguredYarnAuthorizer 源码

hadoop ContainerManagerSecurityInfo 源码

hadoop ContainerTokenIdentifier 源码

hadoop ContainerTokenSelector 源码

hadoop DockerCredentialTokenIdentifier 源码

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