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From Toke Eskildsen>
Subject Re: Is it safe to upgrade an existing field to docvalues?
Date Wed, 24 Aug 2016 11:05:56 GMT
On Tue, 2016-08-23 at 20:01 +0000, Ronald Wood wrote:
> In general, is there a way to migrate existing indexes (we have
> petabytes of data) by enabling docvalues and incrementally re-
> indexing? We expect the latter would take a month using an atomic
> update process.

I did write a tool for that at some point, that works with Solr 4.x.

It is not polished though, and the main problem is that it is slow to
convert. Some details at

- Toke Eskildsen

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