YARN Forum

Set user for YARN containers

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  • Author
  • #50136
    Robert Metzger

    Okay, I found out for insecure YARN setups (no kerberos auth), I can use something like

    UserGroupInformation ugi = UserGroupInformation.createRemoteUser("vagrant");
    for(Token<? extends TokenIdentifier> toks : UserGroupInformation.getCurrentUser().getTokens()) {
    ugi.doAs(new PrivilegedAction<Object>() {

    public Object run() {

    ("vagrant" obviously not being hard-coded)

    I'll now investigate the secure case...

    Peter Rudenko

    Did you figured out how to run a command under a user. Have the same issue. Have a next code:

    private def setupTokens(username: String): ByteBuffer = {
        val credentials = UserGroupInformation.createProxyUser(username, UserGroupInformation.getCurrentUser).getCredentials
        val dob = new DataOutputBuffer();
        ByteBuffer.wrap(dob.getData(), 0, dob.getLength()).duplicate();
    val cCLC = Records.newRecord(classOf[ContainerLaunchContext])

    But it still running under yarn user.

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