Ah, sorry for the misdirection, thanks for the correction, Erick. That
does jibe with what I now remember having heard before. I guess we
reserve the right to create index data structures in the future for
which we did not save sufficient data in the past.
On Fri, Nov 20, 2020 at 9:15 AM Erick Eri
The IndexUpgraderTool does a forceMerge(1). If you have a large index,
that has its own problems, but will work. The threshold for the issues is
5G. See: https://lucidworks.com/post/solr-and-optimizing-your-index-take-ii/
I should emphasize that if you have a very large single segment as a
result,
I think running the upgrade tool would also be necessary to set you up for
the next upgrade, when 9.0 comes along.
On Fri, Nov 20, 2020, 4:25 AM Uwe Schindler wrote:
> Hi,
>
> > Currently I am using Lucene 7.3, I want to upgrade to lucene 8.5.1.
> Should
> > I do reindexing in this case ?
>
> No
Hi,
> Currently I am using Lucene 7.3, I want to upgrade to lucene 8.5.1. Should
> I do reindexing in this case ?
No, you don't need that.
> Can I make use of backward codec jar without a reindex?
Yes, just add the JAR file to your classpath and it can read the indexes.
Updates written to the
