No workaround exists that I know of. Best, Erick
> On Sep 26, 2019, at 2:21 PM, Jyothsna Bavisetti > <[email protected]> wrote: > > Hi Shawn, > > Re-indexing is costly transaction in my use case as it takes more than three > days. Please let me know if any work around? > > Thanks, > Jyothsna > -----Original Message----- > From: Shawn Heisey <[email protected]> > Sent: Thursday, September 26, 2019 11:35 PM > To: [email protected] > Subject: Re: Lucene index upgrade from 4.6 to 8 facing issue > > On 9/26/2019 11:41 AM, Jyothsna Bavisetti wrote: >> I am trying to upgrade Lucene index from 4.6 to 8.0.0. When I'm trying >> to upgrade tool using: >> >> java -cp lucene-core.jar:lucene-backward-codecs.jar \ >> >> org.apache.lucene.index.IndexUpgrader-delete-prior-commits \ > > <snip> > >> Please let me know any option other than reindexing. > > If you're upgrading more than one major version, you must reindex. > Multiple major version upgrades have always been discouraged and never > guaranteed to work, but now such upgrades are explicitly denied. > > When you used the IndexUpgrader from Lucene 6, the Lucene version was written > into the index. The recorded version was preserved by the upgrader for > version 7. When the index was subsequently read by version 8, it complained > because the original index was not written by version 7 or later. > > Thanks, > Shawn > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] For additional > commands, e-mail: [email protected] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
