Thanks Eric, indeed I had missed this mention. You're right, a mention directly under the "Solr Admin UI" section would make it much more visible. Maybe it would also be worth adding a note to the 10.1.0 release notes, since this was not required at all in 10.0 and only became mandatory with 10.1.
I will change my configuration to expose /api also. Olivier Le lun. 2 nov. 2026 à 16:15, Eric Pugh via users <[email protected]> a écrit : > > > On 2026-11-02 14:27 UTC Olivier Boudet wrote: > > Hello, > > I'd like to report an issue we hit when upgrading from Solr 10.0.0 to > > 10.1.0. > > > > We run Solr behind a reverse proxy that only exposes the standard /solr > > path to the outside. > > With 10.0.0, the Admin UI works fine in this setup, all API calls are > done > > with /solr/api/*. > > With 10.1.0, the Admin UI fails to load its data. Looking at the > browser's > > network tab, the UI now sends its API calls to paths like /api/system/* > at > > the root level, instead of calls living under the /solr path like before. > > Since our proxy only forwards /solr/* to Solr, these /api/* requests > > end with 404 errors. > > If we access Solr directly (bypassing the proxy), the 10.1.0 UI works as > > expected. > > > > Is this a known issue ? I couldn't find anything in the release notes > > explaining this change. > > Is there a parameter to configure this, I did not find anything ? > > > > If it's an unintended regression, do I need to open a new bug report ? > > > > Thank you > > > > Thanks for reporting this! > > 10.1 is the first version of Solr to start really embracing the new V2 > apis. They live under /api and so you should add /api and /solr to your > proxy. > > There is a small mention of it in > https://solr.apache.org/guide/solr/latest/upgrade-notes/major-changes-in-solr-10.html#v2-api > but maybe we should have highlighted it under "Solr Admin UI" header? > > Eric >
