org.gridgain.grid.segmentation.sharedfs

Class SharedFsSegmentationResolver

java.lang.Object

org.gridgain.grid.segmentation.sharedfs.SharedFsSegmentationResolver

All Implemented Interfaces:

Serializable, SegmentationResolver

public class SharedFsSegmentationResolver
extends Object
implements SegmentationResolver

Segmentation resolver implementation that checks whether node is in the correct segment or not by writing to and reading from shared directory.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SharedFsSegmentationResolver()

Method Summary

Modifier and Type	Method and Description
boolean	isValidSegment() Checks whether segment is valid.
SharedFsSegmentationResolver	setPath(String path) Sets path to shared folder.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SharedFsSegmentationResolver

public SharedFsSegmentationResolver()

Method Detail

isValidSegment

public boolean isValidSegment()
                       throws IgniteCheckedException

Checks whether segment is valid.

When segmentation happens every node ends up in either one of two segments:

• Correct segment
• Invalid segment

Nodes in correct segment will continue operate as if nodes in the invalid segment simply left the topology (i.e. the topology just got "smaller"). Nodes in the invalid segment will realized that were "left out or disconnected" from the correct segment and will try to reconnect via segmentation policy set in configuration.

Specified by:

isValidSegment in interface SegmentationResolver

Returns:

True if segment is correct, false otherwise.

Throws:

IgniteCheckedException - If an error occurred.

setPath

public SharedFsSegmentationResolver setPath(String path)

Sets path to shared folder.

This is required property.

Parameters:

path - Path to shared folder.

Returns:

this for chaining.

toString

public String toString()

Overrides:

toString in class Object