** Changed in: nova
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1441054
Title:
live-migration --block-migrate fails with default libvirt flags
Status in OpenStack Compute (nova):
Invalid
Bug description:
while trying to live-migrate an instance with the --block-migrate
option, I've got an error on the host which hosts the VM :
2015-04-07 11:01:32.554 DEBUG nova.virt.libvirt.driver [-] [instance:
31b63d63-b392-4197-8864-b6d85dae438f] Starting monitoring of live migration
from (pid=5202) _live_migration /opt/stack/nova/nova/virt/libvirt/driver.py:5642
2015-04-07 11:01:32.556 DEBUG nova.virt.libvirt.driver [-] [instance:
31b63d63-b392-4197-8864-b6d85dae438f] Operation thread is still running from
(pid=5202) _live_migration_monitor
/opt/stack/nova/nova/virt/libvirt/driver.py:5494
2015-04-07 11:01:32.557 DEBUG nova.virt.libvirt.driver [-] [instance:
31b63d63-b392-4197-8864-b6d85dae438f] Migration not running yet from (pid=5202)
_live_migration_monitor /opt/stack/nova/nova/virt/libvirt/driver.py:5525
2015-04-07 11:01:33.142 INFO nova.virt.libvirt.driver [-] [instance:
31b63d63-b392-4197-8864-b6d85dae438f] Migration running for 0 secs, memory 0%
remaining; (bytes processed=0, remaining=0, total=0)
2015-04-07 11:01:33.277 ERROR nova.virt.libvirt.driver [-] [instance:
31b63d63-b392-4197-8864-b6d85dae438f] Live Migration failure: End of file while
reading data: Input/output error
2015-04-07 11:01:33.278 DEBUG nova.virt.libvirt.driver [-] [instance:
31b63d63-b392-4197-8864-b6d85dae438f] Migration operation thread notification
from (pid=5202) thread_finished /opt/stack/nova/nova/virt/libvirt/driver.py:5633
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line
457, in fire_timers
timer()
File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/timer.py", line
58, in __call__
cb(*args, **kw)
File "/usr/local/lib/python2.7/dist-packages/eventlet/event.py", line 168,
in _do_send
waiter.switch(result)
File "/usr/local/lib/python2.7/dist-packages/eventlet/greenthread.py", line
214, in main
result = function(*args, **kwargs)
File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 5428, in
_live_migration_operation
instance=instance)
File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line
85, in __exit__
six.reraise(self.type_, self.value, self.tb)
File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 5397, in
_live_migration_operation
CONF.libvirt.live_migration_bandwidth)
File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 183,
in doit
result = proxy_call(self._autowrap, f, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 141,
in proxy_call
rv = execute(f, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 122,
in execute
six.reraise(c, e, tb)
File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 80,
in tworker
rv = meth(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/libvirt.py", line 1734, in
migrateToURI2
if ret == -1: raise libvirtError ('virDomainMigrateToURI2() failed',
dom=self)
libvirtError: End of file while reading data: Input/output error
2015-04-07 11:01:33.644 DEBUG nova.virt.libvirt.driver [-] [instance:
31b63d63-b392-4197-8864-b6d85dae438f] VM running on src, migration failed from
(pid=5202) _live_migration_monitor
/opt/stack/nova/nova/virt/libvirt/driver.py:5500
2015-04-07 11:01:33.645 DEBUG nova.virt.libvirt.driver [-] [instance:
31b63d63-b392-4197-8864-b6d85dae438f] Fixed incorrect job type to be 4 from
(pid=5202) _live_migration_monitor
/opt/stack/nova/nova/virt/libvirt/driver.py:5520
2015-04-07 11:01:33.645 ERROR nova.virt.libvirt.driver [-] [instance:
31b63d63-b392-4197-8864-b6d85dae438f] Migration operation has aborted
2015-04-07 11:01:33.733 DEBUG nova.virt.libvirt.driver [-] [instance:
31b63d63-b392-4197-8864-b6d85dae438f] Live migration monitoring is all done
from (pid=5202) _live_migration /opt/stack/nova/nova/virt/libvirt/driver.py:5653
live migration with block-migrate works fine when I remove the flag
VIR_MIGRATE_TUNNELLED from the option block_migration_flag.
indeed, live block migration cannot occur in tunneling mode, as reported here
:
https://wiki.openstack.org/wiki/OSSN/OSSN-0007
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