After some tweaking to screen sessions, finally I can see Unicode
strings logged and shown in screen environment. It is not a problem of
oslo.log or log module from oslo-incubator. Sorry for the false alarm.
Maybe devstack should start screen sessions with Unicode support by
default?
Regards,
- Qiming
On Wed, Dec 24, 2014 at 08:58:13PM +0800, Qiming Teng wrote:
Seems that the reason is in devstack 'screen' is not started with
Unicode support. Still checking ...
Regards,
Qiming
On Wed, Dec 24, 2014 at 05:48:56PM +0800, Qiming Teng wrote:
Hi,
When trying to enable stack names in Heat to use unicode strings, I am
stuck by a weird behavior of logging.
Suppose I have a stack name assigned some non-ASCII string, then when
stack tries to log something here:
heat/engine/stack.py:
536 LOG.info(_LI('Stack %(action)s %(status)s (%(name)s): '
537 '%(reason)s'),
538 {'action': action,
539 'status': status,
540 'name': self.name, # type(self.name)==unicode here
541 'reason': reason})
I'm seeing the following errors from h-eng session:
Traceback (most recent call last):
File /usr/lib64/python2.6/logging/__init__.py, line 799, in emit
stream.write(fs % msg.decode('utf-8'))
File /usr/lib64/python2.6/encodings/utf_8.py, line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeEncodeError: 'ascii' codec can't encode characters in position
114-115:
ordinal not in range(128)
This means logging cannot handle Unicode correctly? No. I did the
following experiments:
$ cat logtest
#!/usr/bin/env python
import sys
from oslo.utils import encodeutils
from oslo import i18n
from heat.common.i18n import _LI
from heat.openstack.common import log as logging
i18n.enable_lazy()
LOG = logging.getLogger('logtest')
logging.setup('heat')
print('sys.stdin.encoding: %s' % sys.stdin.encoding)
print('sys.getdefaultencoding: %s' % sys.getdefaultencoding())
s = sys.argv[1]
print('s is: %s' % type(s))
stack_name = encodeutils.safe_decode(unis)
print('stack_name is: %s' % type(stack_name))
# stack_name is unicode here
LOG.error(_LI('stack name: %(name)s') % {'name': stack_name})
$ ./logtest some Chinese here
[tengqm@node1 heat]$ ./logtest 中文
sys.stdin.encoding: UTF-8
sys.getdefaultencoding: ascii
s is: type 'str'
stack_name is: type 'unicode'
2014-12-24 17:51:13.799 29194 ERROR logtest [-] stack name: 中文
It worked.
After spending more than one day on this, I'm seeking help from people
here. What's wrong with Unicode stack names here?
Any hints are appreciated.
Regards,
- Qiming
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