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From Erick Erickson <>
Subject Re: Duplicate Unique Key
Date Mon, 07 Apr 2014 20:04:03 GMT
Oh my yes! I feel a great sense of relief every time an intermittent
problem becomes reproducible... The problem is not solved, but at
least I have a good feeling that once I don't see it any more it's
_really_ gone!

One possibility is index merging, see: When you merge
indexes, there is no duplicate id checking performed, so you can well
have duplicates. That's a wild shot in the dark though.


On Mon, Apr 7, 2014 at 12:26 PM, Simon <> wrote:
> Erick,
> It's indeed quite odd.  And after I trigger re-indexing all documents (via
> the normal process of existing program). The duplication is gone.  It can
> not be reproduced easily.  But it did occur occasionally and that makes it a
> frustrating task to troubleshoot.
> Thanks,
> Simon
> --
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