Pavel Moravec created DISPATCH-749:
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Summary: unmapping all link-routing addresses leaves half of
addresses mapped
Key: DISPATCH-749
URL: https://issues.apache.org/jira/browse/DISPATCH-749
Project: Qpid Dispatch
Issue Type: Bug
Components: Router Node
Reporter: Pavel Moravec
Setup:
qpidd < - > qdrouterd(S) < - > qdrouterd(C) < - clients
where clients are link-routing via the qdrouterd network to qpidd.
Under specific situations (see
https://bugzilla.redhat.com/show_bug.cgi?id=1426242 for details), when
qdrouterd(S) is not available for some time, qdrouterd(C) returns
"qd:no-route-to-dest" to its clients - so far so good.
But the error persists even after qdrouterd(S) is up, connected from
qdrouterd(C), all links established and addresses mapped.
The cause is,
https://github.com/apache/qpid-dispatch/blob/master/python/qpid_dispatch_internal/router/node.py#L536-L537
does _not_ unmap all addresses:
{code}
$ python
Python 2.7.5 (default, Aug 2 2016, 04:20:16)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> mobile_addresses = ['a.', 'b.', 'c.', 'd.']
>>> for addr in mobile_addresses:
... mobile_addresses.remove(addr)
...
>>> print mobile_addresses
['b.', 'd.']
>>>
{code}
We can't iterate a list that way while removing items from it.
Trivial fix allows so:
{code}
for addr in mobile_addresses[:]:
{code}
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