Examples of org.apache.hadoop.security.UserGroupInformation.doAs()

Class org.apache.hadoop.security.UserGroupInformation

Examples of org.apache.hadoop.security.UserGroupInformation.doAs()

org.apache.hadoop.security.UserGroupInformation.doAs()
Run the given action as the user. @param < T> the return type of the run method @param action the method to execute @return the value from the run method

  
  public void testCloseAllForUGI() throws Exception {
    final Configuration conf = new Configuration();
    conf.set("fs.cachedfile.impl", conf.get("fs.file.impl"));
    UserGroupInformation ugiA = UserGroupInformation.createRemoteUser("foo");
    FileSystem fsA = ugiA.doAs(new PrivilegedExceptionAction<FileSystem>() {
      public FileSystem run() throws Exception {
        return FileSystem.get(new URI("cachedfile://a"), conf);
      }
    });
    //Now we should get the cached filesystem

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      public FileSystem run() throws Exception {
        return FileSystem.get(new URI("cachedfile://a"), conf);
      }
    });
    //Now we should get the cached filesystem
    FileSystem fsA1 = ugiA.doAs(new PrivilegedExceptionAction<FileSystem>() {
      public FileSystem run() throws Exception {
        return FileSystem.get(new URI("cachedfile://a"), conf);
      }
    });
    assertSame(fsA, fsA1);

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    assertSame(fsA, fsA1);
    
    FileSystem.closeAllForUGI(ugiA);
    
    //Now we should get a different (newly created) filesystem
    fsA1 = ugiA.doAs(new PrivilegedExceptionAction<FileSystem>() {
      public FileSystem run() throws Exception {
        return FileSystem.get(new URI("cachedfile://a"), conf);
      }
    });
    assertNotSame(fsA, fsA1);

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      System.arraycopy(splits, 1, groups, 0, splits.length - 1);
      ugi = UserGroupInformation.createUserForTesting(splits[0], groups);
    } else {
      ugi = UserGroupInformation.getCurrentUser();
    }
    RunningJob rJob = ugi.doAs(new PrivilegedExceptionAction<RunningJob>() {
      public RunningJob run() throws IOException {
        if (shouldComplete) {
          return JobClient.runJob(jc);  
        } else {
          // Job should be submitted as 'userInfo'. So both the client as well as

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  //@Test
  public void testFileStatus() throws Exception {
    UserGroupInformation ugi =
        UserGroupInformation.createRemoteUser(cluster
            .getJTClient().getProxy().getDaemonUser());
    ugi.doAs(new PrivilegedExceptionAction<Void>() {
      @Override
      public Void run() throws Exception {
        MRCluster myCluster = null;
        try {
          myCluster = MRCluster.createCluster(cluster.getConf());

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    Text host = new Text(addr.getAddress().getHostAddress() + ":"
        + addr.getPort());
    token.setService(host);
    LOG.info("Service IP address for token is " + host);
    current.addToken(token);
    current.doAs(new PrivilegedExceptionAction<Object>() {
      @Override
      public Object run() throws Exception {
        TaskUmbilicalProtocol proxy = null;
        try {
          proxy = (TaskUmbilicalProtocol) RPC.getProxy(

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    String user = request.getRemoteUser();
    if (user != null && job != null && jt.areACLsEnabled()) {
      final UserGroupInformation ugi =
        UserGroupInformation.createRemoteUser(user);
      try {
        ugi.doAs(new PrivilegedExceptionAction<Void>() {
          public Void run() throws IOException, ServletException {


            // checks job view permission
            jt.getACLsManager().checkAccess(job, ugi,
                Operation.VIEW_JOB_DETAILS);

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            final JobID jobId = JobID.forName(job);
            if (user != null) {
              UserGroupInformation ugi =
                UserGroupInformation.createRemoteUser(user);
              try {
                ugi.doAs(new PrivilegedExceptionAction<Void>() {
                  public Void run() throws IOException{


                    tracker.killJob(jobId);// checks job modify permission
                    return null;
                  }

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            final JobID jobId = JobID.forName(job);
            if (user != null) {
              UserGroupInformation ugi = UserGroupInformation.
                  createRemoteUser(user);
              try {
                ugi.doAs(new PrivilegedExceptionAction<Void>() {
                  public Void run() throws IOException{


                    // checks job modify permission
                    tracker.setJobPriority(jobId, jobPri);
                    return null;

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    Configuration conf =
  (Configuration) getServletContext().getAttribute(JspHelper.CURRENT_CONF);
    final UserGroupInformation ugi = getUGI(request, conf);


    try {
      ugi.doAs(new PrivilegedExceptionAction<Void>() {
            @Override
            public Void run() throws IOException {
              ClientProtocol nn = createNameNodeProxy();
              final String path = 
                request.getPathInfo() != null ? request.getPathInfo() : "/";

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