Erick, Amish, Thank you very much for your reply. They are really helpful. Can you tell me what are the compelling features from 2.9.1 to 5.X? I¹m sure there are many.
Thank you very much Best Regards --- Shuangyang Yang linkedin.com/in/everyoung <www.linkedin.com/in/everyoung> On 7/16/15, 8:41 PM, "Erick Erickson" <erickerick...@gmail.com> wrote: >You have two real choices here: >1> reindex your corpus under 5x >2> follow a tortuous upgrade path. Solr/Lucene only promise to >be backwards compatible through one major version. Thus >Lucene 3x can read Lucene 2x. But Lucene 4x cannot read >read Lucene 2x. > >So you'd have to go 2x->3x->4x->5x with chances for mis-steps >all along the way. > >Best, >Erick > >On Thu, Jul 16, 2015 at 8:27 PM, Shah, Amish <amish.s...@intel.com> wrote: >> No, the file format is not compatible. I think it changed in 4.0. >> >> Amish >> >> On 7/16/15, 6:45 PM, "Shuangyang Yang" <sy...@linkedin.com.INVALID> >>wrote: >> >>>Hi there, >>> >>>We are using lucene 2.9.1 in our product and thinking of upgrading to >>>5.X. Is it plausible? Is the file format compatible? Is there any guide >>>document that can give tips on how to do it? >>> >>>Thank you very much >>>Best Regards >>>--- >>>Shuangyang Yang >>>linkedin.com/in/everyoung<www.linkedin.com/in/everyoung> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> > >--------------------------------------------------------------------- >To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >For additional commands, e-mail: java-user-h...@lucene.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
