I'll work on it some more.  I have 2 different clusters in the data center (1 is the Hosted Engine systems, another is not..)  I had trouble with both.  I'll try again on the non-hosted engine cluster to see what it is doing.  I have it working in 4.1, but we are trying to do a clean wipe since the 4.1 engine has been upgraded so many times from v3.5 plus we want to move to hosted-engine-ha from a single engine node and the ansible modules/roles (which also have problems..)

thomas

On Tue, Mar 13, 2018 at 6:27 AM, Edward Haas <ehaas@redhat.com> wrote:

OVS switch support is experimental at this stage and in some cases when trying to change from one switch to the other, it fails.
It was also not checked against a hosted engine setup, which handles networking a bit differently for the management network (ovirtmgmt).
Nevertheless, we are interested in understanding all the problems that exists today, so if you can, please share the supervdsm log, it has the interesting networking traces.

We plan to block cluster switch editing until these problems are resolved. It will be only allowed to define a new cluster as OVS, not convert an existing one from Linux Bridge to OVS.

On Fri, Mar 9, 2018 at 9:54 AM, Thomas Davis <tadavis@lbl.gov> wrote:
I'm getting further along with 4.2.2rc3 than the 4.2.1 when it comes to hosted engine and vlans..  it actually does install
under 4.2.2rc3.

But it's a complete failure when I switch the cluster from Linux Bridge/Legacy to OVS.  The first time I try, vdsm does
not properly configure the node, it's all messed up.

I'm getting this in vdsmd logs:

2018-03-08 23:12:46,610-0800 INFO  (jsonrpc/7) [api.network] START setupNetworks(networks={u'ovirtmgmt': {u'ipv6autoconf': True, u'nic': u'eno1', u'vlan': u'50', u'ipaddr': u'192.168.85.49', u'switch': u'ovs', u'mtu': 1500, u'netmask': u'255.255.252.0', u'dhcpv6': False, u'STP': u'no', u'bridged': u'true', u'gateway': u'192.168.85.254', u'defaultRoute': True}}, bondings={}, options={u'connectivityCheck': u'true', u'connectivityTimeout': 120}) from=::ffff:192.168.85.24,56806, flow_id=4147e25f-0a23-4f47-a0a4-d424a3437d11 (api:46)

2018-03-08 23:12:52,449-0800 INFO  (jsonrpc/2) [jsonrpc.JsonRpcServer] RPC call Host.ping2 succeeded in 0.00 seconds (__init__:573)

2018-03-08 23:12:52,511-0800 INFO  (jsonrpc/7) [api.network] FINISH setupNetworks error=[Errno 19] ovirtmgmt is not present in the system from=::ffff:192.168.85.24,56806, flow_id=4147e25f-0a23-4f47-a0a4-d424a3437d11 (api:50)
2018-03-08 23:12:52,512-0800 ERROR (jsonrpc/7) [jsonrpc.JsonRpcServer] Internal server error (__init__:611)
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/yajsonrpc/__init__.py", line 606, in _handle_request
    res = method(**params)
  File "/usr/lib/python2.7/site-packages/vdsm/rpc/Bridge.py", line 201, in _dynamicMethod
    result = fn(*methodArgs)
  File "<string>", line 2, in setupNetworks
  File "/usr/lib/python2.7/site-packages/vdsm/common/api.py", line 48, in method
    ret = func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/vdsm/API.py", line 1527, in setupNetworks
    supervdsm.getProxy().setupNetworks(networks, bondings, options)
  File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 55, in __call__
    return callMethod()
  File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 53, in <lambda>
    **kwargs)
  File "<string>", line 2, in setupNetworks
  File "/usr/lib64/python2.7/multiprocessing/managers.py", line 773, in _callmethod
    raise convert_to_error(kind, result)
IOError: [Errno 19] ovirtmgmt is not present in the system
2018-03-08 23:12:52,512-0800 INFO  (jsonrpc/7) [jsonrpc.JsonRpcServer] RPC call Host.setupNetworks failed (error -32603) in 5.90 seconds (__init__:573)
2018-03-08 23:12:54,769-0800 INFO  (jsonrpc/1) [jsonrpc.JsonRpcServer] RPC call Host.ping2 succeeded in 0.00 seconds (__init__:573)
2018-03-08 23:12:54,772-0800 INFO  (jsonrpc/5) [api.host] START getCapabilities() from=::1,45562 (api:46)
2018-03-08 23:12:54,906-0800 INFO  (jsonrpc/5) [api.host] FINISH getCapabilities error=[Errno 19] ovirtmgmt is not present in the system from=::1,45562 (api:50)
2018-03-08 23:12:54,906-0800 ERROR (jsonrpc/5) [jsonrpc.JsonRpcServer] Internal server error (__init__:611)
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/yajsonrpc/__init__.py", line 606, in _handle_request
    res = method(**params)
  File "/usr/lib/python2.7/site-packages/vdsm/rpc/Bridge.py", line 201, in _dynamicMethod
    result = fn(*methodArgs)
  File "<string>", line 2, in getCapabilities
  File "/usr/lib/python2.7/site-packages/vdsm/common/api.py", line 48, in method
    ret = func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/vdsm/API.py", line 1339, in getCapabilities
    c = caps.get()
  File "/usr/lib/python2.7/site-packages/vdsm/host/caps.py", line 168, in get
    net_caps = supervdsm.getProxy().network_caps()
  File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 55, in __call__
    return callMethod()
  File "/usr/lib/python2.7/site-packages/vdsm/common/supervdsm.py", line 53, in <lambda>
    **kwargs)
  File "<string>", line 2, in network_caps
  File "/usr/lib64/python2.7/multiprocessing/managers.py", line 773, in _callmethod
    raise convert_to_error(kind, result)
IOError: [Errno 19] ovirtmgmt is not present in the system

So something is dreadfully wrong with the bridge to ovs conversion in 4.2.2rc3.

thomas
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