Hi Sandra, No, it won't work. Solr 9 will still know the core was created in Solr 7, even if you upgrade to Solr 8 in between.
Thomas Op di 16 jan 2024 om 19:34 schreef Sandra Paganini Fajardo < spagani...@gmail.com>: > Hi Tomas, thanks for your answer. > > But if i upgrade solr 7.7 to 8.11 and then solr version 8.11 to 9 works? > > And what about Apache Zookeeper, can i upgrade to apache zookeeper 3.9 with > solr 7.7? > > thanks. > > pd. sorry about my english writting > > > El mar, 16 ene 2024 a las 15:15, Thomas Corthals (<tho...@klascement.net>) > escribió: > > > Hi Sandra, > > > > You can't upgrade more than one major Solr version. Solr 9 will refuse to > > work with a core that has ever been touched by Solr 7. > > > > > > My advice for any upgrade is to set up the new version from scratch and > > rebuild your index from the authoritative data source. > > > > > > Thomas > > > > Op di 16 jan 2024 om 18:37 schreef Sandra Paganini Fajardo < > > spagani...@gmail.com>: > > > > > Hi,my name is Sandra. I am from Uruguay. > > > I have a three server cluster Solr 7.7 with Apache Zookeeper 3.5.5. > > > I want to upgrade both. > > > > > > Solr 7.7 --> 8.11 --> 9.4.0 > > > Apache Zookeeper 3.5.5 t-- > 3.6.5 --> 3.9 > > > > > > My questions are: > > > - Can SolrCloud 8.11 works with Apache Zookeeper v3.9? > > > - Which of both i have to upgrade first? > > > > > > tks sandra > > > > > >
