Greetings fellow GAE dorks,
So I'm trying to clean up an existing app. I want to delete all the
entities of a certain class. Since there's no automagic way to do
this, I made a handler that deletes them a block at a time. Here it
is:
class DeleteHandler(BaseRequestHandler):
def get(self):
size = int(self.request.get('size',default_value='10'))
touches = Touch.gql('ORDER BY time desc').fetch(size)
db.delete(touches)
self.response.out.write("ok")
Pretty simple. So I called this in a loop for a while, and it started
timing out at the query. Hm. Perhaps a problem with the index?
I then changed the query to this:
touches = Touch.all().fetch(size)
So that the first index wasn't involved. This worked for a while, but
then started timing out again. Here's the error:
Traceback (most recent call last):
File "/base/python_lib/versions/1/google/appengine/ext/webapp/
__init__.py", line 499, in __call__
handler.get(*groups)
File "/base/data/home/apps/showmeflow/1.329447312090117530/main.py",
line 58, in get
most_recent_touches = Touch.all().fetch(size)
File "/base/python_lib/versions/1/google/appengine/ext/db/
__init__.py", line 1377, in fetch
raw = self._get_query().Get(limit, offset)
File "/base/python_lib/versions/1/google/appengine/api/
datastore.py", line 938, in Get
return self._Run(limit, offset)._Next(limit)
File "/base/python_lib/versions/1/google/appengine/api/
datastore.py", line 882, in _Run
_ToDatastoreError(err)
File "/base/python_lib/versions/1/google/appengine/api/
datastore.py", line 1636, in _ToDatastoreError
raise errors[err.application_error](err.error_detail)
Timeout
What's a dork to do?
Ben
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