Hi,
I am trying to download some from the datastore using the following
command:
appcfg.py download_data --config_file=bulkloader.yaml --
application=myappname --kind=mykindname --url=http://
myappname.appspot.com/_ah/remote_api --
filename=myappname_mykindname.csv
When I didn't have much data in this particular kind/table I could
download the data in one shot - occasionally running into the
following error:
.................................[ERROR ] [Thread-11]
ExportProgressThread:
Traceback (most recent call last):
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\bulkload
er.py", line 1448, in run
self.PerformWork()
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\bulkload
er.py", line 2216, in PerformWork
item.key_end)
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\bulkload
er.py", line 2011, in StoreKeys
(STATE_READ, unicode(kind), unicode(key_start), unicode(key_end)))
OperationalError: unable to open database file
When that error appeared I would simply re-run the download and things
would work out well.
Of late, I am noticing that as the size of my kind increases, the
download tool fails much more often. For instance, with a kind with
~3500 entities I had to run to the command 5 times - only the last of
which succeeded. Is there a way around this error? Previously, my only
worry was I wouldn't be able to automate downloads in a script because
of the occasional failures - now I am scared I won't be able to get my
data out at all.
This issue was discussed previously here: http://tinyurl.com/6yh9g5u ,
but the post is old and I am not sure what the suggested flag does -
hence posting my similar query again.
--
You received this message because you are subscribed to the Google Groups
"Google App Engine" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
