Marc Morissette created SOLR-11508:
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Summary: core.properties should be stored
$solr.data.home/$core.name
Key: SOLR-11508
URL: https://issues.apache.org/jira/browse/SOLR-11508
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Marc Morissette
Since Solr 7, it is possible to store Solr cores in separate disk locations
using solr.data.home (see SOLR-6671). This is very useful where running Solr in
Docker where data must be stored in a directory which is independent from the
rest of the container.
Unfortunately, while core data is stored in
{{$\{solr.data.home}/$\{core.name}/index/...}}, core.properties is stored in
{{$\{solr.solr.home}/$\{core.name}/core.properties}}.
Reading SOLR-6671 comments, I think this was the expected behaviour but I don't
think it is the correct one.
In addition to being inelegant and counterintuitive, this has the drawback of
stripping a core of its metadata and breaking core discovery when a Solr
installation is redeployed, whether in Docker or not.
core.properties is mostly metadata and although it contains some configuration,
this configuration is specific to the core it accompanies. I believe it should
be stored in solr.data.home, with the rest of the data it describes.
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