[ZODB-Dev] ReadConflictError while re-indexing big fat index

[Chris Withers]

Roché Compaan wrote:
>> ReadConflictError: database read conflict error (oid 000000000001ff36, 
>> class BTrees.IIBTree.IISet)
>>
>> 1. What is the above error message really trying to tell me?
>>    (it's a pretty obscure message ;-)
> 
> An object (most probably the index) was modified and thus invalidated in 
> another transaction. At the time that your indexing operation wants to 
> commit, the ZEO server tells you that your are trying to modify an 
> object that has been invalidated.

I'm not sure that is correct. Sounds like you're describing a Write 
ConflictError. I'm experiencing a ReadConflictError on the web serving 
side of the equation, where no writing is being done...

Chris

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