This is a real bug, but unfortunately it's in SQLAlchemy, so OpenStack
can't fix it directly without dumping SQLAlchemy, which would be a
drastic change. Please report the bug to SQLAlchemy, though, so they
are aware that there are people who'd like them to support IPv6
addresses in their connection URLs.
As a workaround, you can give the box 2001:db8::22 a DNS entry or hosts
file entry and refer to it by hostname rather than IPv6 address.
** Changed in: nova
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/1190454
Title:
sqlalchemy could not parse sql_connection urls containning ipv6
address
Status in OpenStack Compute (Nova):
Won't Fix
Bug description:
Version of Nova: Grizzly.
I tried to configure openstack in pure IPv6 enviroment.
Edit nova.conf file in controller node.
Set the sql_connection = msyql://nova:nova@[2001:db8::22]/nova?charset=utf8
( [2001:db8::22] is ipv6 address of controller node)
When started the service nova-conductor (or any other project connected to
database), It reported ERROR.
In File: /usr/lib64/python2.6/site-packages/sqlalchemy/engine/url.py
Function : def _parse_rfc1738_args(name):
pattern = re.compile(r'''
(?P<name>[\w\+]+)://
(?:
(?P<username>[^:/]*)
(?::(?P<password>[^/]*))?
@)?
(?:
(?P<host>[^/:]*)
(?::(?P<port>[^/]*))?
)?
(?:/(?P<database>.*))?
'''
, re.X)
m = pattern.match(name)
if m is not None:
components = m.groupdict()
Add breakpoint in above code and debug to get the components. Result of
components is following:
{ 'username': 'nova', 'name': 'mysql', 'database':'nova?charset=utf8',
'host': '[2001', 'password':'nova', 'port' : 'db8::22]' }
Obviously, the current code could not parse sql_connection urls that
contain ipv6 address correctly.
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