You absolutely need core.properties files. It’s just that they should be considered an “implementation detail” that you should rarely, if ever need to be aware of.
Scripting manual creation of core.properties files in order to define your collections has never been officially supported, it just happened to work. Best, Erick > On Nov 3, 2020, at 11:06 AM, Modassar Ather <modather1...@gmail.com> wrote: > > Thanks Erick for your response. > > I will certainly use the APIs and not rely on the core.properties. I was > going through the documentation on core.properties and found it to be still > there. > I have all the solr install scripts based on older Solr versions and wanted > to re-use the same as the core.properties way is still available. > > So does this mean that we do not need core.properties anymore? > How can we ensure that the core name is configurable and not dynamically > set? > > I will try to use the APIs to create the collection as well as the cores. > > Best, > Modassar > > On Tue, Nov 3, 2020 at 5:55 PM Erick Erickson <erickerick...@gmail.com> > wrote: > >> You’re relying on legacyMode, which is no longer supported. In >> older versions of Solr, if a core.properties file was found on disk Solr >> attempted to create the replica (and collection) on the fly. This is no >> longer true. >> >> >> Why are you doing it this manually instead of using the collections API? >> You can precisely place each replica with that API in a way that’ll >> be continued to be supported going forward. >> >> This really sounds like an XY problem, what is the use-case you’re >> trying to solve? >> >> Best, >> Erick >> >>> On Nov 3, 2020, at 6:39 AM, Modassar Ather <modather1...@gmail.com> >> wrote: >>> >>> Hi, >>> >>> I am migrating from Solr 6.5.1 to Solr 8.6.3. As a part of the entire >>> upgrade I have the first task to install and configure the solr with the >>> core and collection. The solr is installed in SolrCloud mode. >>> >>> In Solr 6.5.1 I was using the following key values in core.properties >> file. >>> The configuration files were uploaded to zookeeper using the upconfig >>> command. >>> The core and collection was automatically created with the setting in >>> core.properties files and the configSet uploaded in zookeeper and it used >>> to display on the Solr 6.5.1 dashboard. >>> >>> numShards=12 >>> >>> name=mycore >>> >>> collection=mycore >>> >>> configSet=mycore >>> >>> >>> With the latest Solr 8.6.3 the same approach is not working. As per my >>> understanding the core is identified using the location of >> core.properties >>> which is under *<SOLR_HOME>/mycore/core.properties.* >>> >>> Can you please help me with the following? >>> >>> >>> - Is there any property I am missing to load the core and collection as >>> it used to be in Solr 6.5.1 with the help of core.properties and >> config set >>> on zookeeper? >>> - The name of the core and collection should be configurable and not >> the >>> dynamically generated names. How can I control that in the latest Solr? >>> - Is the core and collection API the only way to create core and >>> collection as I see that the core is also not getting listed even if >> the >>> core.properties file is present? >>> >>> Please note that I will be doing a full indexing once the setup is done. >>> >>> Kindly help me with your suggestions. >>> >>> Best, >>> Modassar >> >>
