In below Run cluster related cases are failed and VM's not getting IP address.
In openstack node observed ODL3 controller connection is not established properly.

https://logs.opendaylight.org/releng/jenkins092/netvirt-legacy-csit-3node-openstack-mitaka-upstream-boron/39/archives/log.html.gz#s1-s3-s2

Manager "tcp:10.29.12.207:6640"
is_connected: true
Manager "tcp:10.29.13.140:6640"
is_connected: true
Manager "tcp:10.29.12.15:6640"
is_connected: true
Bridge br-int
Controller "tcp:10.29.13.140:6653"
Controller "tcp:10.29.12.15:6653"
is_connected: true
Controller "tcp:10.29.12.207:6653"
is_connected: true
fail_mode: secure
Port patch-ext
Interface patch-ext
type: patch
options:

controller "10.29.13.140" port 6640 connection status is true but 6653 connection status is not displayed.

Next Run all the Test cases are passed this issue is inconsistent.

There are many ERROR in ODL3 controller logs.
uploaded all controller logs.

2016-12-13 20:02:11,373 | INFO | entLoopGroup-7-7 | ConnectionAdapterImpl | 296 - org.opendaylight.openflowjava.openflow-protocol-impl - 0.8.2.SNAPSHOT | Hello received / branch
2016-12-13 20:02:11,378 | WARN | lt-dispatcher-16 | ReliableDeliverySupervisor | 199 - com.typesafe.akka.slf4j - 2.4.7 | Association with remote system [akka.tcp://opendaylight-cluster-data@10.29.12.207:2550] has failed, address is now gated for [5000] ms. Reason: [Association failed with [akka.tcp://opendaylight-cluster-data@10.29.12.207:2550]] Caused by: [Connection refused: /10.29.12.207:2550]
2016-12-13 20:02:11,380 | ERROR | on-dispatcher-80 | OutboundQueueProviderImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | No queue present, failing request
2016-12-13 20:02:11,381 | INFO | entLoopGroup-7-7 | SystemNotificationsListenerImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | ConnectionEvent: Connection closed by device, Device:/10.29.13.11:50964, NodeId:null
2016-12-13 20:02:11,387 | ERROR | on-dispatcher-82 | OutboundQueueProviderImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | No queue present, failing request
2016-12-13 20:02:11,387 | WARN | on-dispatcher-82 | RpcContextImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Xid cannot be reserved for new RequestContext, node:openflow:119508379114414
2016-12-13 20:02:11,395 | ERROR | on-dispatcher-69 | OutboundQueueProviderImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | No queue present, failing request
2016-12-13 20:02:11,395 | WARN | on-dispatcher-69 | RpcContextImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Xid cannot be reserved for new RequestContext, node:openflow:270479877144834
2016-12-13 20:02:11,396 | WARN | on-dispatcher-80 | RpcContextImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Xid cannot be reserved for new RequestContext, node:openflow:119508379114414
2016-12-13 20:02:11,397 | ERROR | on-dispatcher-80 | OutboundQueueProviderImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | No queue present, failing request
2016-12-13 20:02:11,397 | WARN | on-dispatcher-80 | RpcContextImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Xid cannot be reserved for new RequestContext, node:openflow:119508379114414
2016-12-13 20:02:11,405 | WARN | entLoopGroup-7-8 | StatisticsGatheringUtils | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Can't write to transaction, transaction chain probably closed.
2016-12-13 20:02:11,405 | WARN | entLoopGroup-7-5 | StatisticsGatheringUtils | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Can't write to transaction, transaction chain probably closed.
2016-12-13 20:02:11,406 | WARN | entLoopGroup-7-8 | StatisticsManagerImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Statistics gathering for single node openflow:270479877144834 was not successful: Device connection is closed for Node : Uri [_value=openflow:270479877144834].
2016-12-13 20:02:11,406 | WARN | entLoopGroup-7-5 | StatisticsManagerImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Statistics gathering for single node openflow:167998386060623 was not successful: Device connection is closed for Node : Uri [_value=openflow:167998386060623].
2016-12-13 20:02:11,406 | INFO | entLoopGroup-7-5 | ConnectionAdapterImpl | 296 - org.opendaylight.openflowjava.openflow-protocol-impl - 0.8.2.SNAPSHOT | Hello received / branch
2016-12-13 20:02:11,406 | INFO | entLoopGroup-7-8 | ConnectionAdapterImpl | 296 - org.opendaylight.openflowjava.openflow-protocol-impl - 0.8.2.SNAPSHOT | Hello received / branch
2016-12-13 20:02:11,410 | ERROR | on-dispatcher-68 | OutboundQueueProviderImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | No queue present, failing request
2016-12-13 20:02:11,410 | WARN | on-dispatcher-68 | RpcContextImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Xid cannot be reserved for new RequestContext, node:openflow:167998386060623
2016-12-13 20:02:11,420 | WARN | entLoopGroup-7-3 | StatisticsGatheringUtils | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Can't write to transaction, transaction chain probably closed.
2016-12-13 20:02:11,420 | WARN | entLoopGroup-7-3 | StatisticsManagerImpl | 301 - org.opendaylight.openflowplugin.impl - 0.3.2.SNAPSHOT | Statistics gathering for single node openflow:119508379114414 was not successful: Device connection is closed for Node : Uri [_value=openflow:119508379114414].