Hi Toke ! Good stuff ! So basically using your tool you build a copy of the index ( similar to what optimize does) without affecting the main index right ? So the procedure would be :
1) Solr is running 2) Run the tool pointing to the Solr Index, this will be slow but will generate a new index copying from the stored content to docValues 3) Stop Solr 4) Change Solr schema enabling docValues 5) Point to the new converted index 6) Start Solr Am I right ? This is actually a useful tool when re-indexing could be extremely long. Cheers On Wed, Aug 24, 2016 at 12:05 PM, Toke Eskildsen <t...@statsbiblioteket.dk> wrote: > 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. > https://github.com/netarchivesuite/dvenabler > > It is not polished though, and the main problem is that it is slow to > convert. Some details at https://sbdevel.wordpress.com/2014/12/15/chang > ing-field-type-in-lucenesolr/ > > - Toke Eskildsen > > -- -------------------------- Benedetti Alessandro Visiting card : http://about.me/alessandro_benedetti "Tyger, tyger burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry?" William Blake - Songs of Experience -1794 England
