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Special:NewItem return error "Could not create a new page. It already exists." although it does not exist
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I tried to create an item for dewiki "Oberbilk" but got the error "Could not create a new page. It already exists." although it does not exist.

The 3rd try was successful then:

Version: unspecified
Severity: normal
See Also:



Event Timeline

bzimport raised the priority of this task from to Medium.Nov 22 2014, 1:17 AM
bzimport set Reference to bz46535.
bzimport added a subscriber: Unknown Object (MLST).

This happens quite frequently to me. Usually the 2nd try is successful.

This happened a lot to me the past 2 weeks

@Maarten: my bot is currently mass-importing sitelinks from dewiki.

I think this is an annoying bug and should be resolved in the near future.

So this was caused by Inkowik's bot creating new items too fast. It should be slower now and the problem gone away. I am not sure what we can do to prevent it from happening again. We will investigate.

So two users create an item at the same time. Both fire off a transaction. Both get the same id. One gets a new item, the other one an error because the id was already taken?

If you implemnt it like a ethernet collisions, the second one should back off for a random amount of time and than try again.

You probably want to implement some throttling too so a bot can't overload it like this bot did.

Change 139794 had a related patch set uploaded by Xqt:
(bug 66619) Ignore TypeError for bug 46535

Can someone please explain if/how the above patch relates to the issue of this bug?

I have not heard anymore complaints about this so I assume this is fine now. Please reopen if it is still problematic.