[ovirt-users] ovirt 4.2.2-rc3 switching from legacy to OVS..
Thomas Davis
tadavis at lbl.gov
Wed Mar 14 23:50:10 UTC 2018
Well, I just hit
https://bugzilla.redhat.com/show_bug.cgi?id=1513991
And it's been closed, which means with vdsm-4.20.17-1.el7.centos.x86_64
OVS networking is totally borked..
I know OVS is Experimental, but it worked in 4.1.x, and now we have to
do a step back to legacy bridge just to use 4.2.x, which in a vlan
environment just wreaks havoc (every VLAN need's a unique mac assigned
to the bridge, which vdsm does not do, so suddenly you get the kernel
complaining about seeing it's mac address several times.)
There is zero documentation on how to use OVN instead of OVS.
thomas
On 03/13/2018 09:22 AM, Thomas Davis wrote:
> 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 at redhat.com
> <mailto:ehaas at 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 at lbl.gov
> <mailto:tadavis at 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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