hex.security

Class KerberosExtension

java.lang.Object

water.AbstractH2OExtension

hex.security.KerberosExtension

public class KerberosExtension
extends water.AbstractH2OExtension

Authenticates the H2O Node to access secured Hadoop cluster in a standalone mode. This extension assumes that if Hadoop configuration is present, and it has Kerberos enabled the user will likely want to read data from HDFS even though H2O is running in a standalone mode (not on Hadoop). The extension attempts to authenticate the user using an existing Kerberos ticket. This means the Kerberos ticket needs to be manually acquired by the user on each node before the H2O instance is started. The extension fails gracefully if the user cannot be authenticated and doesn't stop H2O start-up. The failure will be logged as an error.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	NAME

Constructor Summary

Constructors

Constructor and Description
KerberosExtension()

Method Summary

Modifier and Type	Method and Description
java.lang.String	getExtensionName()
boolean	isEnabled()
void	onLocalNodeStarted()

Methods inherited from class water.AbstractH2OExtension

getBuildVersion, init, parseArguments, parseFailed, printHelp, printInitialized, toString, validateArguments

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NAME

public static java.lang.String NAME

Constructor Detail

KerberosExtension

public KerberosExtension()

Method Detail

getExtensionName

public java.lang.String getExtensionName()

Specified by:

getExtensionName in class water.AbstractH2OExtension

isEnabled

public boolean isEnabled()

Overrides:

isEnabled in class water.AbstractH2OExtension

onLocalNodeStarted

public void onLocalNodeStarted()

Overrides:

onLocalNodeStarted in class water.AbstractH2OExtension