alluxio

Enum PropertyKey.ConsistencyCheckLevel

java.lang.Object

java.lang.Enum<PropertyKey.ConsistencyCheckLevel>

alluxio.PropertyKey.ConsistencyCheckLevel

All Implemented Interfaces:

Serializable, Comparable<PropertyKey.ConsistencyCheckLevel>

Enclosing class:

PropertyKey

public static enum PropertyKey.ConsistencyCheckLevel
extends Enum<PropertyKey.ConsistencyCheckLevel>

The consistency check level to apply to a certain property key. User can run "alluxio validateEnv all cluster.conf.consistent" to validate the consistency of configuration properties within the cluster. The command reads all Alluxio properties on each node of the cluster and shows error or warning for properties that have inconsistent values among the nodes. For example, it would show error if the Alluxio property for aws secret access key has some value on a master node and a different value on one of the worker nodes.

Enum Constant Summary

Enum Constants

Enum Constant and Description
ENFORCE Check consistency of property value, show error of inconsistent values.
IGNORE Do not check consistency of property value.
WARN Check consistency of property value, show warning of inconsistent values.

Method Summary

Modifier and Type	Method and Description
static PropertyKey.ConsistencyCheckLevel	valueOf(String name) Returns the enum constant of this type with the specified name.
static PropertyKey.ConsistencyCheckLevel[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

IGNORE

public static final PropertyKey.ConsistencyCheckLevel IGNORE

Do not check consistency of property value. This should be set if the property is not required to have same value among the nodes (e.g. worker hostname).

WARN

public static final PropertyKey.ConsistencyCheckLevel WARN

Check consistency of property value, show warning of inconsistent values. This should be set if the property is recommended to have same value among the nodes, although having different values does not cause immediate issues(e.g. alluxio home folder location, timeout value for connecting to a worker).

ENFORCE

public static final PropertyKey.ConsistencyCheckLevel ENFORCE

Check consistency of property value, show error of inconsistent values. This should be set if the property is required to have same value among the nodes (e.g. AWS credentials, journal location).

Method Detail

values

public static PropertyKey.ConsistencyCheckLevel[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (PropertyKey.ConsistencyCheckLevel c : PropertyKey.ConsistencyCheckLevel.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static PropertyKey.ConsistencyCheckLevel valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null