R2.20 upgrade : after upgrade "contrail-vrouter-nodemgr” is in “EXITED” state

[Shweta Naik]

Upgrade from R2.11(build 55) to R2.20(build 16)
Ubuntu 14.04:

in compute node:
root@a5s198:~# contrail-status
== Contrail vRouter ==
supervisor-vrouter: active
contrail-vrouter-agent active
contrail-vrouter-nodemgr EXITED

root@a5s198:/var/log/contrail# vi contrail-vrouter-nodemgr-stderr.log
Sending UVE:NodeStatusUVE(_context='', _scope='', _category='', _send_queue_enabled=True, _seqnum=0, _versionsig=2778367443, _source='a5s198', _instance_id='0', _client=None, _type=6, _hints=1, _http_server=None, _logger=None, _more=False, _node_type='Compute', data=NodeStatus(status=None, name='a5s198', deleted=None, disk_usage_info=[DiskPartitionUsageStats(partition_space_available_1k=74687496, partition_space_used_1k=3122676, partition_name='/dev/mapper/a5s198--vg-root', partition_type='ext4'), DiskPartitionUsageStats(partition_space_available_1k=162171, partition_space_used_1k=66360, partition_name='/dev/sda1', partition_type='ext2')], process_status=None, all_core_file_list=None, _table='ObjectVRouter', process_info=None, description=None), _module='contrail-vrouter-nodemgr', _level=2147483647, _timestamp=1431379683159932, _client_context='', _connect_to_collector=True, _role=0)Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/gevent/greenlet.py", line 327, in run
    result = self._run(*self.args, **self.kwargs)
  File "/usr/lib/python2.7/dist-packages/nodemgr/VrouterNodemgr.py", line 162, in runforever
    lb_stats.send_loadbalancer_stats()
  File "/usr/lib/python2.7/dist-packages/nodemgr/LoadbalancerStats.py", line 50, in send_loadbalancer_stats
    _send_loadbalancer_uve(driver)
  File "/usr/lib/python2.7/dist-packages/nodemgr/LoadbalancerStats.py", line 35, in _send_loadbalancer_uve
    for pool_uuid in os.listdir(LB_BASE_DIR):
OSError: [Errno 2] No such file or directory: '/var/lib/contrail/loadbalancer/'
<Greenlet at 0x7fd4f626b550: <bound method VrouterEventManager.runforever of <nodemgr.VrouterNodemgr.VrouterEventManager object at 0x7fd4f6641350>>> failed with OSError

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/10202
Submitter: Rudra Rugge (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/10203
Submitter: Rudra Rugge (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/10202
Submitter: Rudra Rugge (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/10203
Submitter: Rudra Rugge (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/10203
Committed: http://github.org/Juniper/contrail-controller/commit/ba3590c598b359e3e43cf34d8aa6347563b40206
Submitter: Zuul
Branch: R2.20

commit ba3590c598b359e3e43cf34d8aa6347563b40206
Author: Rudra Rugge <email address hidden>
Date: Tue May 12 09:35:09 2015 -0700

Exception handling when no LBAAS configured

Add exception handling when LBAAS is not configured.
Set the configuration for stats socket in haproxy config file.

Change-Id: Id653b691db5e1ba27fe00bb0627a519977a369b0
Closes-Bug: #1453985

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/10202
Submitter: Rudra Rugge (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/10202
Committed: http://github.org/Juniper/contrail-controller/commit/cffbb9e51e1a00fe11684f13301b6c2c112716a6
Submitter: Zuul
Branch: master

commit cffbb9e51e1a00fe11684f13301b6c2c112716a6
Author: Rudra Rugge <email address hidden>
Date: Tue May 12 09:37:56 2015 -0700

Exception handling when no LBAAS configured

Add exception handling when LBAAS is not configured.

Change-Id: Id653b691db5e1ba27fe00bb0627a519977a369b0
Closes-Bug: #1453985