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

        }
      });
      
      //set permission and try DFSck again as the fake user, should succeed
      fs.setPermission(dirpath, new FsPermission((short)0777));
      fakeUGI.doAs(new PrivilegedExceptionAction<Object>() {
        @Override
        public Object run() throws Exception {
          final String outStr = runFsck(conf, 0, true, dir);
          System.out.println(outStr);
          assertTrue(outStr.contains(NamenodeFsck.HEALTHY_STATUS));

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    // Set the credentials
    defaultConf.setCredentials(credentials);
    
    final TaskUmbilicalProtocol umbilical = 
      taskOwner.doAs(new PrivilegedExceptionAction<TaskUmbilicalProtocol>() {
        @Override
        public TaskUmbilicalProtocol run() throws Exception {
          return (TaskUmbilicalProtocol)RPC.getProxy(TaskUmbilicalProtocol.class,
              TaskUmbilicalProtocol.versionID,
              address,

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          childUGI.addToken(token);
        }
        
        // Create a final reference to the task for the doAs block
        final Task taskFinal = task;
        childUGI.doAs(new PrivilegedExceptionAction<Object>() {
          @Override
          public Object run() throws Exception {
            try {
              // use job-specified working directory
              FileSystem.get(job).setWorkingDirectory(job.getWorkingDirectory());

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          // do cleanup for the task
          if(childUGI == null) {
            task.taskCleanup(umbilical);
          } else {
            final Task taskFinal = task;
            childUGI.doAs(new PrivilegedExceptionAction<Object>() {
              @Override
              public Object run() throws Exception {
                taskFinal.taskCleanup(umbilical);
                return null;
              }

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    UserGroupInformation ugi = UserGroupInformation
        .createRemoteUser(user);
    ugi.addToken(ConverterUtils.convertFromYarn(token, rmAddress));


    final YarnRPC rpc = YarnRPC.create(conf);
    ApplicationClientProtocol clientRMWithDT = ugi
        .doAs(new PrivilegedAction<ApplicationClientProtocol>() {
          @Override
          public ApplicationClientProtocol run() {
            return (ApplicationClientProtocol) rpc.getProxy(ApplicationClientProtocol.class,
                rmAddress, conf);

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     */
    final UserGroupInformation user = UserGroupInformation.
        createUserForTesting("user", new String[] {"mygroup"});
    fs.setXAttr(path, "trusted.foo", "1234".getBytes());
    try {
      user.doAs(new PrivilegedExceptionAction<Object>() {
          @Override
          public Object run() throws Exception {
            final FileSystem userFs = dfsCluster.getFileSystem();
            final byte[] xattr = userFs.getXAttr(path, "trusted.foo");
            return null;

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     */


    /* Set access so that only the owner has access. */
    fs.setPermission(path, new FsPermission((short) 0700));
    try {
      user.doAs(new PrivilegedExceptionAction<Object>() {
          @Override
          public Object run() throws Exception {
            final FileSystem userFs = dfsCluster.getFileSystem();
            final byte[] xattr = userFs.getXAttr(path, name1);
            return null;

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    final Path childDir = new Path(path, "child" + pathCount);
    /* Set access to parent so that only the owner has access. */
    FileSystem.mkdirs(fs, childDir, FsPermission.createImmutable((short)0700));
    fs.setXAttr(childDir, name1, "1234".getBytes());
    try {
      user.doAs(new PrivilegedExceptionAction<Object>() {
          @Override
          public Object run() throws Exception {
            final FileSystem userFs = dfsCluster.getFileSystem();
            final byte[] xattr = userFs.getXAttr(childDir, name1);
            return null;

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    }


    /* Check that read access to the owning directory is not good enough. */
    fs.setPermission(path, new FsPermission((short) 0704));
    try {
      user.doAs(new PrivilegedExceptionAction<Object>() {
          @Override
          public Object run() throws Exception {
            final FileSystem userFs = dfsCluster.getFileSystem();
            final byte[] xattr = userFs.getXAttr(childDir, name1);
            return null;

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     * access to the actual entity with extended attributes is not good enough.
     */
    fs.setPermission(path, new FsPermission((short) 0701));
    fs.setPermission(childDir, new FsPermission((short) 0701));
    try {
      user.doAs(new PrivilegedExceptionAction<Object>() {
          @Override
          public Object run() throws Exception {
            final FileSystem userFs = dfsCluster.getFileSystem();
            final byte[] xattr = userFs.getXAttr(childDir, name1);
            return null;

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