I'm in a similar situation where I'm
using org.apache.lucene.index.IndexUpgrader to upgrade an index from solr 4
to solr 6, and want to add docValues to the schema.
All my fields are stored so I assume I could use the DataImportHandler
SolrEntityProcessor to copy the collection to a new collection and pick up
the docValues that way.
Will this work and is there a better (command line) way?
On 29 October 2016 at 09:50, Erick Erickson <erickerick...@gmail.com> wrote:
> This is a little contradictory:
> > how do I reindex the data in place - without starting from the source?
> > then ran my reindex SolrJ code.
> So it looks like you _were_ able to re-index from scratch?
> BTW, to be absolutely safe I'd re-index to a _new_ collection and
> then, perhaps, use
> collection aliasing to switch seamlessly. I've seen situations where
> when some segments think fieldX has docValues and some don't it can be
> a problem.
> OTOH, if you define a _new_ field with docValues, that's no problem.
> And if it worked for you, it worked.....
> On Fri, Oct 28, 2016 at 8:09 AM, tedsolr <tsm...@sciquest.com> wrote:
> > So I ran a quick test of my idea and it worked. I modified the schema.xml
> > file - uploaded it to ZK - reloaded the collection - then ran my reindex
> > SolrJ code. After it completed the schema browser in the admin console
> > that the field uses docValues. I tried a streaming expression on it to
> > the /export request handler and that was good - no errors.
> > Still would love to hear from anyone who has done this differently.
> > tedsolr wrote
> >> Not all my fields use docValues. This is going to be a problem in the
> >> future. Once I change the schema.xml to use docValues for these certain
> >> field types, how do I reindex the data in place - without starting from
> >> the source?
> >> I'm aware of lucene's IndexUpgrader but that will only ensure a correct
> >> lucene match version. I'm not changing that. Could I use SolrJ to walk
> >> through the documents and "touch" each one and do an atomic update on
> >> fields that have changed? (all the fields I care about are stored)
> >> Thanks, Ted
> >> v5.2.1
> > --
> > View this message in context: http://lucene.472066.n3.
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