io.hekate.cluster.seed.jclouds

Class CloudStoreSeedNodeProvider

java.lang.Object

io.hekate.cluster.seed.jclouds.CloudStoreSeedNodeProvider

All Implemented Interfaces:

io.hekate.cluster.seed.SeedNodeProvider

public class CloudStoreSeedNodeProvider
extends Object
implements io.hekate.cluster.seed.SeedNodeProvider

Cloud store-based implementation of SeedNodeProvider interface.

This provider uses a cloud storage (f.e. Amazon S3) to keep track of active seed nodes. When provider starts discovering other nodes it uses BlobStore to creates a new empty blob whose name contains local node's host address and port. Such blob is stored in a configurable container (aka bucket) under /[cluster_name]/ folder. In order to find other seed nodes it reads the list of all blobs in that folder and parses addresses from their names.

Please see the documentation of CloudStoreSeedNodeProviderConfig class for details about the available configuration options.

See Also:

ClusterServiceFactory.setSeedNodeProvider(SeedNodeProvider), SeedNodeProvider

Constructor Summary

Constructors

Constructor and Description
CloudStoreSeedNodeProvider(CloudStoreSeedNodeProviderConfig cfg) Constructs new instance.

Method Summary

Modifier and Type	Method and Description
long	cleanupInterval()
List<InetSocketAddress>	findSeedNodes(String cluster)
void	registerRemote(String cluster, InetSocketAddress node)
void	startDiscovery(String cluster, InetSocketAddress node)
void	stopDiscovery(String cluster, InetSocketAddress node)
void	suspendDiscovery()
String	toString()
void	unregisterRemote(String cluster, InetSocketAddress node)

Methods inherited from class java.lang.Object

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

Constructor Detail

CloudStoreSeedNodeProvider

public CloudStoreSeedNodeProvider(CloudStoreSeedNodeProviderConfig cfg)

Constructs new instance.

Parameters:

cfg - Configuration.

Method Detail

startDiscovery

public void startDiscovery(String cluster,
                           InetSocketAddress node)
                    throws io.hekate.core.HekateException

Specified by:

startDiscovery in interface io.hekate.cluster.seed.SeedNodeProvider

Throws:

io.hekate.core.HekateException

stopDiscovery

public void stopDiscovery(String cluster,
                          InetSocketAddress node)
                   throws io.hekate.core.HekateException

Specified by:

stopDiscovery in interface io.hekate.cluster.seed.SeedNodeProvider

Throws:

io.hekate.core.HekateException

findSeedNodes

public List<InetSocketAddress> findSeedNodes(String cluster)
                                      throws io.hekate.core.HekateException

Specified by:

findSeedNodes in interface io.hekate.cluster.seed.SeedNodeProvider

Throws:

io.hekate.core.HekateException

registerRemote

public void registerRemote(String cluster,
                           InetSocketAddress node)
                    throws io.hekate.core.HekateException

Specified by:

registerRemote in interface io.hekate.cluster.seed.SeedNodeProvider

Throws:

io.hekate.core.HekateException

unregisterRemote

public void unregisterRemote(String cluster,
                             InetSocketAddress node)
                      throws io.hekate.core.HekateException

Specified by:

unregisterRemote in interface io.hekate.cluster.seed.SeedNodeProvider

Throws:

io.hekate.core.HekateException

suspendDiscovery

public void suspendDiscovery()
                      throws io.hekate.core.HekateException

Specified by:

suspendDiscovery in interface io.hekate.cluster.seed.SeedNodeProvider

Throws:

io.hekate.core.HekateException

cleanupInterval

public long cleanupInterval()

Specified by:

cleanupInterval in interface io.hekate.cluster.seed.SeedNodeProvider

toString

public String toString()

Overrides:

toString in class Object