I've used bootstrap_confdir and env var DEFAULT_CONFDIR (as recently as yesterday quite literally) for convenient ways of bootstrapping a custom Docker image with one's own configset. In that scenario (embedded ZK), it's awkward to attempt to use zkcli upconfig after Solr starts since there's no hook/script to execute something after Solr starts.
On Sat, Aug 23, 2025 at 9:58 PM Mark Miller <markrmil...@gmail.com> wrote: > These where system properties that allowed automated config set upload > before better options came along. This was pre collection API or other > scripts that let you upload a config set. They were probably largely added, > like internal zk mode, for the “demo” - a series of commands on the wiki > you could run to bring up a working cloud cluster without any other manual > steps. > > I believe one of them let you specify a directory to upload and the other > would look at solr.xml and upload the config sets for all configured cores. > > I believe this code was rooted in ZkController or maybe ZkContainer > initially. I suppose for back compatibility, eventually support was moved > to ConfigSetService. If they don't currently work, at some point they must > have been broken. They are no longer mentioned in the docs, and the > functionality they provided was long ago superseded by more modern options. >
