Hi guys, found a solution (quickfix) for Icehouse. https://ask.openstack.org/en/question/69017/nova-detach-iscsi-error/
Cheers Heiko Am 26.06.2015 um 10:26 schrieb Heiko Krämer: > Hi guys, > > i get a strange problem on all my compute hosts with volume attachments > by Cinder. > All volumes are attached with multipath iSCSI. > > * Ubuntu 12.04 > * Icehouse > * KVM > > > how to reproduce: > * Attach volume > * mount volume and fill with files > * umount > * detach volume > > > root@comp8:~# multipath -ll > 36006016013503c00a91d1364f910e511 dm-1 DGC,VRAID > size=3.1T features='1 queue_if_no_path' hwhandler='1 emc' wp=rw > |-+- policy='round-robin 0' prio=1 status=active > | `- 13:0:0:7 sdg 8:96 active ready running > `-+- policy='round-robin 0' prio=0 status=enabled > `- 12:0:0:7 sdf 8:80 active ready running > > > Nova Compute log: > > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher File > "/usr/lib/python2.7/dist-packages/nova/openstack/common/excutils.py", > line 68, in __exit__ > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher > six.reraise(self.type_, self.value, self.tb) > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 307, in > decorated_function > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher > return function(self, context, *args, **kwargs) > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 4296, > in detach_volume > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher > self._detach_volume(context, instance, bdm) > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 4243, > in _detach_volume > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher > connection_info = jsonutils.loads(bdm.connection_info) > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher File > "/usr/lib/python2.7/dist-packages/nova/openstack/common/jsonutils.py", > line 164, in loads > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher > return json.loads(s) > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher File > "/usr/lib/python2.7/json/__init__.py", line 326, in loads > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher > return _default_decoder.decode(s) > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher File > "/usr/lib/python2.7/json/decoder.py", line 366, in decode > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher > obj, end = self.raw_decode(s, idx=_w(s, 0).end()) > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher > TypeError: expected string or buffer > 2015-06-26 08:17:01.994 13059 TRACE oslo.messaging.rpc.dispatcher > 2015-06-26 08:17:01.999 13059 ERROR oslo.messaging._drivers.common [-] > Returning exception expected string or buffer to caller > 2015-06-26 08:17:02.000 13059 ERROR oslo.messaging._drivers.common [-] > ['Traceback (most recent call last):\n', ' File > "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", > line 133, in _dispatch_and_reply\n incoming.message))\n', ' File > "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", > line 176, in _dispatch\n return self._do_dispatch(endpoint, method, > ctxt, args)\n', ' File > "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", > line 122, in _do_dispatch\n result = getattr(endpoint, method)(ctxt, > **new_args)\n', ' File > "/usr/lib/python2.7/dist-packages/nova/exception.py", line 88, in > wrapped\n payload)\n', ' File > "/usr/lib/python2.7/dist-packages/nova/openstack/common/excutils.py", > line 68, in __exit__\n six.reraise(self.type_, self.value, > self.tb)\n', ' File > "/usr/lib/python2.7/dist-packages/nova/exception.py", line 71, in > wrapped\n return f(self, context, *args, **kw)\n', ' File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 291, in > decorated_function\n LOG.warning(msg, e, > instance_uuid=instance_uuid)\n', ' File > "/usr/lib/python2.7/dist-packages/nova/openstack/common/excutils.py", > line 68, in __exit__\n six.reraise(self.type_, self.value, > self.tb)\n', ' File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 268, in > decorated_function\n return function(self, context, *args, > **kwargs)\n', ' File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 320, in > decorated_function\n e, sys.exc_info())\n', ' File > "/usr/lib/python2.7/dist-packages/nova/openstack/common/excutils.py", > line 68, in __exit__\n six.reraise(self.type_, self.value, > self.tb)\n', ' File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 307, in > decorated_function\n return function(self, context, *args, > **kwargs)\n', ' File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 4296, > in detach_volume\n self._detach_volume(context, instance, bdm)\n', ' > File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line > 4243, in _detach_volume\n connection_info = > jsonutils.loads(bdm.connection_info)\n', ' File > "/usr/lib/python2.7/dist-packages/nova/openstack/common/jsonutils.py", > line 164, in loads\n return json.loads(s)\n', ' File > "/usr/lib/python2.7/json/__init__.py", line 326, in loads\n return > _default_decoder.decode(s)\n', ' File > "/usr/lib/python2.7/json/decoder.py", line 366, in decode\n obj, end > = self.raw_decode(s, idx=_w(s, 0).end())\n', 'TypeError: expected string > or buffer\n'] > > > > Nova-Compute.conf: > > [DEFAULT] > libvirt_type=kvm > libvirt_ovs_bridge=br-int > libvirt_vif_type=ethernet > libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtGenericVIFDriver > vif_plugging_is_fatal=True > libvirt_nonblocking = True > libvirt_use_virtio_for_bridges=True > libvirt_cpu_mode=host-passthrough > disk_cachemodes="file=writeback,block=none" > running_deleted_instance_action=reap > libvirt_inject_partition = -2 > vif_plugging_timeout = 0 > compute_driver=nova.virt.libvirt.LibvirtDriver > libvirt_iscsi_use_multipath=True > > > > > Anynone has seen this error before ? Is there any solution ? > > > Cheers and thanks > Heiko > > > > > > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : [email protected] > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack -- anynines.com
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