yahoo-eng-team team mailing list archive

[Chris Dent <cdent+lp@xxxxxxxxxxxxx>]

Public bug reported:

When the placement handlers raise an HTTPMethodNotAllowed response, the
headers are set with those methods that are allowed. These need to be
not unicode (it's not clear how they get to be unicode (in 2.7) in the
first place, but something is doing it, and that's not right) otherwise
we get:

```
2016-09-22 11:03:01.875 22919 ERROR nova.api.openstack.placement.handler HTTPMethodNotAllowed: The method specified is not allowed for this resource.
2016-09-22 11:03:01.875 22919 ERROR nova.api.openstack.placement.handler 
2016-09-22 11:03:01.877 22919 INFO nova.api.openstack.placement.requestlog [req-524fdd42-0f19-4eb3-827f-99ae22fc6dd9 admin admin] 10.0.2.15 "DELETE /placement/resource_providers" status: 405 len: 133
mod_wsgi (pid=22919): Exception occurred processing WSGI script '/usr/local/bin/nova-placement-api'.
TypeError: expected byte string object for header value, value of type unicode found
```

wherein the service correctly tries to send a 405 but then the mod_wsgi
server blows up on the data it is getting.

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: api placement scheduler

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https://bugs.launchpad.net/bugs/1626496

Title:
  when placement API sends a 405 the header value is in the incorrect
  format

Status in OpenStack Compute (nova):
  New

Bug description:
  When the placement handlers raise an HTTPMethodNotAllowed response,
  the headers are set with those methods that are allowed. These need to
  be not unicode (it's not clear how they get to be unicode (in 2.7) in
  the first place, but something is doing it, and that's not right)
  otherwise we get:

  ```
  2016-09-22 11:03:01.875 22919 ERROR nova.api.openstack.placement.handler HTTPMethodNotAllowed: The method specified is not allowed for this resource.
  2016-09-22 11:03:01.875 22919 ERROR nova.api.openstack.placement.handler 
  2016-09-22 11:03:01.877 22919 INFO nova.api.openstack.placement.requestlog [req-524fdd42-0f19-4eb3-827f-99ae22fc6dd9 admin admin] 10.0.2.15 "DELETE /placement/resource_providers" status: 405 len: 133
  mod_wsgi (pid=22919): Exception occurred processing WSGI script '/usr/local/bin/nova-placement-api'.
  TypeError: expected byte string object for header value, value of type unicode found
  ```

  wherein the service correctly tries to send a 405 but then the
  mod_wsgi server blows up on the data it is getting.

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