Package org.apache.cassandra.locator

Class GoogleCloudSnitch

java.lang.Object

org.apache.cassandra.locator.AbstractEndpointSnitch

org.apache.cassandra.locator.AbstractNetworkTopologySnitch

org.apache.cassandra.locator.GoogleCloudSnitch

All Implemented Interfaces:

IEndpointSnitch

public class GoogleCloudSnitch
extends AbstractNetworkTopologySnitch

A snitch that assumes an GCE region is a DC and an GCE availability_zone is a rack. This information is available in the config for the node.

Field Summary

Fields

Modifier and Type	Field	Description
protected final org.apache.cassandra.locator.AbstractCloudMetadataServiceConnector	connector

Constructor Summary

Constructors

Constructor	Description
GoogleCloudSnitch()
GoogleCloudSnitch(org.apache.cassandra.locator.AbstractCloudMetadataServiceConnector connector)
GoogleCloudSnitch(SnitchProperties properties)

Method Summary

Modifier and Type	Method	Description
final String	getDatacenter(InetAddressAndPort endpoint)	Return the data center for which an endpoint resides in
final String	getLocalDatacenter()	returns a String representing the datacenter current endpoint belongs to
final String	getLocalRack()	returns a String representing the rack current endpoint belongs to
final String	getRack(InetAddressAndPort endpoint)	Return the rack for which an endpoint resides in

Methods inherited from class org.apache.cassandra.locator.AbstractNetworkTopologySnitch

compareEndpoints

Methods inherited from class org.apache.cassandra.locator.AbstractEndpointSnitch

gossiperStarting, isWorthMergingForRangeQuery, sortedByProximity

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cassandra.locator.IEndpointSnitch

getDatacenter, getDatacenter, validate

Field Details

connector

protected final org.apache.cassandra.locator.AbstractCloudMetadataServiceConnector connector

Constructor Details

GoogleCloudSnitch

public GoogleCloudSnitch()
                  throws IOException

Throws:

IOException

GoogleCloudSnitch

public GoogleCloudSnitch(SnitchProperties properties)
                  throws IOException

Throws:

IOException

GoogleCloudSnitch

public GoogleCloudSnitch(org.apache.cassandra.locator.AbstractCloudMetadataServiceConnector connector)
                  throws IOException

Throws:

IOException

Method Details

getLocalRack

public final String getLocalRack()

Description copied from interface: IEndpointSnitch

returns a String representing the rack current endpoint belongs to

getLocalDatacenter

public final String getLocalDatacenter()

Description copied from interface: IEndpointSnitch

returns a String representing the datacenter current endpoint belongs to

getRack

public final String getRack(InetAddressAndPort endpoint)

Description copied from class: AbstractNetworkTopologySnitch

Return the rack for which an endpoint resides in

Specified by:

getRack in interface IEndpointSnitch

Specified by:

getRack in class AbstractNetworkTopologySnitch

Parameters:

endpoint - a specified endpoint

Returns:

string of rack

getDatacenter

public final String getDatacenter(InetAddressAndPort endpoint)

Description copied from class: AbstractNetworkTopologySnitch

Return the data center for which an endpoint resides in

Specified by:

getDatacenter in interface IEndpointSnitch

Specified by:

getDatacenter in class AbstractNetworkTopologySnitch

Parameters:

endpoint - a specified endpoint

Returns:

string of data center