Ownership changed consistently without down any node

I’m finding the inconsistency behaviour about ownership election in 3-node OVSDB southbound clustering.

In 3-Node OVSDB Southbound cluster once owner node elected it should not be change until unless we goes down that node, but, in my observations find the ownership consistently changed one instance to another instance without bring down the node.

below are my observations on 107 node.

2015-11-02 07:23:23,428 | INFO | lt-dispatcher-21 | OvsdbConnectionManager | 174 - org.opendaylight.ovsdb.southbound-impl - 1.2.1.SNAPSHOT | handleOwnershipChanged: EntityOwnershipChanged [entity=Entity{type='ovsdb', id=/(urn:TBD:params:xml:ns:yang:network-topology?revision=2013-10-21)network-topology/topology/topology[

{(urn:TBD:params:xml:ns:yang:network-topology?revision=2013-10-21)topology-id=ovsdb:1}

]/node/node[

{(urn:TBD:params:xml:ns:yang:network-topology?revision=2013-10-21)node-id=ovsdb:/10.106.138.116:6640}

]}, wasOwner=false, isOwner=true, hasOwner=true] event received for device ConnectionInfo [Remote-address=10.106.138.116, Remote-port=40335, Local-address10.106.138.107, Local-port=6640, type=PASSIVE]

2015-11-02 08:16:48,965 | INFO | lt-dispatcher-21 | OvsdbConnectionManager | 174 - org.opendaylight.ovsdb.southbound-impl - 1.2.1.SNAPSHOT | handleOwnershipChanged: EntityOwnershipChanged [entity=Entity{type='ovsdb', id=/(urn:TBD:params:xml:ns:yang:network-topology?revision=2013-10-21)network-topology/topology/topology[

{(urn:TBD:params:xml:ns:yang:network-topology?revision=2013-10-21)topology-id=ovsdb:1}

]/node/node[

{(urn:TBD:params:xml:ns:yang:network-topology?revision=2013-10-21)node-id=ovsdb:/10.106.138.116:6640}

]}, wasOwner=true, isOwner=false, hasOwner=true] event received for device ConnectionInfo [Remote-address=10.106.138.116, Remote-port=40335, Local-address10.106.138.107, Local-port=6640, type=PASSIVE]

2015-11-02 08:17:42,892 | INFO | lt-dispatcher-16 | OvsdbConnectionManager | 174 - org.opendaylight.ovsdb.southbound-impl - 1.2.1.SNAPSHOT | handleOwnershipChanged: EntityOwnershipChanged [entity=Entity{type='ovsdb', id=/(urn:TBD:params:xml:ns:yang:network-topology?revision=2013-10-21)network-topology/topology/topology[

{(urn:TBD:params:xml:ns:yang:network-topology?revision=2013-10-21)topology-id=ovsdb:1}

]/node/node[

{(urn:TBD:params:xml:ns:yang:network-topology?revision=2013-10-21)node-id=ovsdb:/10.106.138.116:6640}

]}, wasOwner=false, isOwner=true, hasOwner=true] event received for device ConnectionInfo [Remote-address=10.106.138.116, Remote-port=43804, Local-address10.106.138.107, Local-port=6640, type=PASSIVE].