Open Stack

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 at 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
> > 
> > 
> > _______________________________________________
> > OpenStack-dev mailing list
> > OpenStack-dev at lists.openstack.org
> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
> 
> 
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