often times out on searchTasks()

[Martin Pitt]

The apport retracers have been broken for a while, so that a lot of bugs tagged 'needs-amd64-retrace' and 'needs-i386-retrace' have piled up. Now I fixed them, but searchTasks() keeps timing out, so that the retracer bots can't actually get active to reduce the number of pending crash bugs.

Reproducer:
$ lp-shell
>>> lp.distributions('ubuntu').searchTasks(tags='need-amd64-retrace')
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/usr/lib/python2.7/dist-packages/lazr/restfulclient/resource.py", line 573, in __call__
    url, in_representation, http_method, extra_headers=extra_headers)
  File "/usr/lib/python2.7/dist-packages/lazr/restfulclient/_browser.py", line 281, in _request
    raise error
ServerError: HTTP Error 503: Service Unavailable
Response headers:
---
-content-encoding: gzip
connection: close
content-length: 6773
content-type: text/html;charset=utf-8
date: Wed, 24 Aug 2011 07:34:37 GMT
retry-after: 900
server: zope.server.http (HTTP)
status: 503
vary: Accept-Encoding
via: 1.1 api.launchpad.net
x-lazr-oopsid: OOPS-2062CJ19
x-powered-by: Zope (www.zope.org), Python (www.python.org)

Unfortunately searchTasks() does not have an argument like "limit=50" which I could use to grab just the first batch. That would suffice for my purposes.