diff --git a/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java b/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java
new file mode 100644
index 0000000..57d2358
--- /dev/null
+++ b/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedClusterStore.java
@@ -0,0 +1,159 @@
+package org.onlab.onos.store.cluster.impl;
+
+import com.google.common.base.Optional;
+import com.google.common.cache.LoadingCache;
+import com.google.common.collect.ImmutableSet;
+import com.hazelcast.core.IMap;
+import com.hazelcast.core.Member;
+import com.hazelcast.core.MemberAttributeEvent;
+import com.hazelcast.core.MembershipEvent;
+import com.hazelcast.core.MembershipListener;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.onos.cluster.ClusterEvent;
+import org.onlab.onos.cluster.ClusterStore;
+import org.onlab.onos.cluster.ClusterStoreDelegate;
+import org.onlab.onos.cluster.ControllerNode;
+import org.onlab.onos.cluster.DefaultControllerNode;
+import org.onlab.onos.cluster.NodeId;
+import org.onlab.onos.store.common.AbsentInvalidatingLoadingCache;
+import org.onlab.onos.store.common.AbstractHazelcastStore;
+import org.onlab.onos.store.common.OptionalCacheLoader;
+import org.onlab.packet.IpPrefix;
+
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+import static com.google.common.cache.CacheBuilder.newBuilder;
+import static org.onlab.onos.cluster.ClusterEvent.Type.INSTANCE_ACTIVATED;
+import static org.onlab.onos.cluster.ClusterEvent.Type.INSTANCE_DEACTIVATED;
+import static org.onlab.onos.cluster.ControllerNode.State;
+
+/**
+ * Distributed implementation of the cluster nodes store.
+ */
+@Component(immediate = true)
+@Service
+public class DistributedClusterStore
+        extends AbstractHazelcastStore<ClusterEvent, ClusterStoreDelegate>
+        implements ClusterStore {
+
+    private IMap<byte[], byte[]> rawNodes;
+    private LoadingCache<NodeId, Optional<DefaultControllerNode>> nodes;
+
+    private String listenerId;
+    private final MembershipListener listener = new InternalMembershipListener();
+    private final Map<NodeId, State> states = new ConcurrentHashMap<>();
+
+    @Activate
+    public void activate() {
+        super.activate();
+        listenerId = theInstance.getCluster().addMembershipListener(listener);
+
+        rawNodes = theInstance.getMap("nodes");
+        OptionalCacheLoader<NodeId, DefaultControllerNode> nodeLoader
+                = new OptionalCacheLoader<>(storeService, rawNodes);
+        nodes = new AbsentInvalidatingLoadingCache<>(newBuilder().build(nodeLoader));
+        rawNodes.addEntryListener(new RemoteEventHandler<>(nodes), true);
+
+        loadClusterNodes();
+
+        log.info("Started");
+    }
+
+    // Loads the initial set of cluster nodes
+    private void loadClusterNodes() {
+        for (Member member : theInstance.getCluster().getMembers()) {
+            addMember(member);
+        }
+    }
+
+    @Deactivate
+    public void deactivate() {
+        theInstance.getCluster().removeMembershipListener(listenerId);
+        log.info("Stopped");
+    }
+
+    @Override
+    public ControllerNode getLocalNode() {
+        return node(theInstance.getCluster().getLocalMember());
+    }
+
+    @Override
+    public Set<ControllerNode> getNodes() {
+        ImmutableSet.Builder<ControllerNode> builder = ImmutableSet.builder();
+        for (Optional<DefaultControllerNode> optional : nodes.asMap().values()) {
+            builder.add(optional.get());
+        }
+        return builder.build();
+    }
+
+    @Override
+    public ControllerNode getNode(NodeId nodeId) {
+        return nodes.getUnchecked(nodeId).orNull();
+    }
+
+    @Override
+    public State getState(NodeId nodeId) {
+        State state = states.get(nodeId);
+        return state == null ? State.INACTIVE : state;
+    }
+
+    @Override
+    public void removeNode(NodeId nodeId) {
+        synchronized (this) {
+            rawNodes.remove(serialize(nodeId));
+            nodes.invalidate(nodeId);
+        }
+    }
+
+    // Adds a new node based on the specified member
+    private synchronized ControllerNode addMember(Member member) {
+        DefaultControllerNode node = node(member);
+        rawNodes.put(serialize(node.id()), serialize(node));
+        nodes.put(node.id(), Optional.of(node));
+        states.put(node.id(), State.ACTIVE);
+        return node;
+    }
+
+    // Creates a controller node descriptor from the Hazelcast member.
+    private DefaultControllerNode node(Member member) {
+        IpPrefix ip = memberAddress(member);
+        return new DefaultControllerNode(new NodeId(ip.toString()), ip);
+    }
+
+    private IpPrefix memberAddress(Member member) {
+        byte[] address = member.getSocketAddress().getAddress().getAddress();
+        return IpPrefix.valueOf(address);
+    }
+
+    // Interceptor for membership events.
+    private class InternalMembershipListener implements MembershipListener {
+        @Override
+        public void memberAdded(MembershipEvent membershipEvent) {
+            log.info("Member {} added", membershipEvent.getMember());
+            ControllerNode node = addMember(membershipEvent.getMember());
+            notifyDelegate(new ClusterEvent(INSTANCE_ACTIVATED, node));
+        }
+
+        @Override
+        public void memberRemoved(MembershipEvent membershipEvent) {
+            log.info("Member {} removed", membershipEvent.getMember());
+            NodeId nodeId = new NodeId(memberAddress(membershipEvent.getMember()).toString());
+            states.put(nodeId, State.INACTIVE);
+            notifyDelegate(new ClusterEvent(INSTANCE_DEACTIVATED, getNode(nodeId)));
+        }
+
+        @Override
+        public void memberAttributeChanged(MemberAttributeEvent memberAttributeEvent) {
+            log.info("Member {} attribute {} changed to {}",
+                     memberAttributeEvent.getMember(),
+                     memberAttributeEvent.getKey(),
+                     memberAttributeEvent.getValue());
+        }
+    }
+}
diff --git a/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedMastershipStore.java b/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedMastershipStore.java
new file mode 100644
index 0000000..a2f2dd9
--- /dev/null
+++ b/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/DistributedMastershipStore.java
@@ -0,0 +1,147 @@
+package org.onlab.onos.store.cluster.impl;
+
+import static com.google.common.cache.CacheBuilder.newBuilder;
+import static org.onlab.onos.cluster.MastershipEvent.Type.MASTER_CHANGED;
+
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.onos.cluster.ClusterService;
+import org.onlab.onos.cluster.MastershipEvent;
+import org.onlab.onos.cluster.MastershipStore;
+import org.onlab.onos.cluster.MastershipStoreDelegate;
+import org.onlab.onos.cluster.MastershipTerm;
+import org.onlab.onos.cluster.NodeId;
+import org.onlab.onos.net.DeviceId;
+import org.onlab.onos.net.MastershipRole;
+import org.onlab.onos.store.common.AbsentInvalidatingLoadingCache;
+import org.onlab.onos.store.common.AbstractHazelcastStore;
+import org.onlab.onos.store.common.OptionalCacheLoader;
+
+import com.google.common.base.Optional;
+import com.google.common.cache.LoadingCache;
+import com.google.common.collect.ImmutableSet;
+import com.hazelcast.core.IMap;
+
+/**
+ * Distributed implementation of the cluster nodes store.
+ */
+@Component(immediate = true)
+@Service
+public class DistributedMastershipStore
+extends AbstractHazelcastStore<MastershipEvent, MastershipStoreDelegate>
+implements MastershipStore {
+
+    private IMap<byte[], byte[]> rawMasters;
+    private LoadingCache<DeviceId, Optional<NodeId>> masters;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ClusterService clusterService;
+
+    @Override
+    @Activate
+    public void activate() {
+        super.activate();
+
+        rawMasters = theInstance.getMap("masters");
+        OptionalCacheLoader<DeviceId, NodeId> nodeLoader
+        = new OptionalCacheLoader<>(storeService, rawMasters);
+        masters = new AbsentInvalidatingLoadingCache<>(newBuilder().build(nodeLoader));
+        rawMasters.addEntryListener(new RemoteMasterShipEventHandler(masters), true);
+
+        loadMasters();
+
+        log.info("Started");
+    }
+
+    private void loadMasters() {
+        for (byte[] keyBytes : rawMasters.keySet()) {
+            final DeviceId id = deserialize(keyBytes);
+            masters.refresh(id);
+        }
+    }
+
+    @Deactivate
+    public void deactivate() {
+        log.info("Stopped");
+    }
+
+    @Override
+    public MastershipEvent setMaster(NodeId nodeId, DeviceId deviceId) {
+        synchronized (this) {
+            NodeId currentMaster = getMaster(deviceId);
+            if (Objects.equals(currentMaster, nodeId)) {
+                return null;
+            }
+
+            // FIXME: for now implementing semantics of setMaster
+            rawMasters.put(serialize(deviceId), serialize(nodeId));
+            masters.put(deviceId, Optional.of(nodeId));
+            return new MastershipEvent(MastershipEvent.Type.MASTER_CHANGED, deviceId, nodeId);
+        }
+    }
+
+    @Override
+    public NodeId getMaster(DeviceId deviceId) {
+        return masters.getUnchecked(deviceId).orNull();
+    }
+
+    @Override
+    public Set<DeviceId> getDevices(NodeId nodeId) {
+        ImmutableSet.Builder<DeviceId> builder = ImmutableSet.builder();
+        for (Map.Entry<DeviceId, Optional<NodeId>> entry : masters.asMap().entrySet()) {
+            if (nodeId.equals(entry.getValue().get())) {
+                builder.add(entry.getKey());
+            }
+        }
+        return builder.build();
+    }
+
+    @Override
+    public MastershipRole requestRole(DeviceId deviceId) {
+        // FIXME: for now we are 'selecting' as master whoever asks
+        setMaster(clusterService.getLocalNode().id(), deviceId);
+        return MastershipRole.MASTER;
+    }
+
+    @Override
+    public MastershipRole getRole(NodeId nodeId, DeviceId deviceId) {
+        NodeId master = masters.getUnchecked(deviceId).orNull();
+        return nodeId.equals(master) ? MastershipRole.MASTER : MastershipRole.STANDBY;
+    }
+
+    @Override
+    public MastershipTerm getTermFor(DeviceId deviceId) {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    private class RemoteMasterShipEventHandler extends RemoteEventHandler<DeviceId, NodeId> {
+        public RemoteMasterShipEventHandler(LoadingCache<DeviceId, Optional<NodeId>> cache) {
+            super(cache);
+        }
+
+        @Override
+        protected void onAdd(DeviceId deviceId, NodeId nodeId) {
+            notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId, nodeId));
+        }
+
+        @Override
+        protected void onRemove(DeviceId deviceId, NodeId nodeId) {
+            notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId, nodeId));
+        }
+
+        @Override
+        protected void onUpdate(DeviceId deviceId, NodeId oldNodeId, NodeId nodeId) {
+            notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId, nodeId));
+        }
+    }
+
+}
diff --git a/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/package-info.java b/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/package-info.java
new file mode 100644
index 0000000..9f36b88
--- /dev/null
+++ b/core/store/hz/cluster/src/main/java/org/onlab/onos/store/cluster/impl/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Implementation of a distributed cluster node store using Hazelcast.
+ */
+package org.onlab.onos.store.cluster.impl;