[jira] [Resolved] (SOLR-9575) Allow starting with an empty SOLR_HOME

["Houston Putman (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-9575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Houston Putman resolved SOLR-9575.
----------------------------------
    Resolution: Fixed

> Allow starting with an empty SOLR_HOME
> --------------------------------------
>
>                 Key: SOLR-9575
>                 URL: https://issues.apache.org/jira/browse/SOLR-9575
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: David Smiley
>            Assignee: Jan Høydahl
>            Priority: Major
>              Labels: docker
>             Fix For: 9.0
>
>          Time Spent: 2.5h
>  Remaining Estimate: 0h
>
> The user may not want to use Solr's default solr-home dir location -- most likely to use a separate disk.  If you do this, there are two main problems:
> * solr.xml & zoo.cfg aren't there
> * configsets aren't there
> Of course you could copy it manually but that's an extra step, and it's particularly annoying to add this step to a Docker setup.  Docker is all the rage these days, and for good reason.  If I mount a volume at /opt/solr/server/solr then it basically masks this part of the built-in Solr image (thus making configsets completely invisible) and points to some place that will be empty.  Solr obviously complains.  I could set the solr-home to some other path that I mount, but Solr would still complain about an empty solr-home -- no solr.xml
> If solr-home is empty, and if it's a dir other than the default solr-home, then I think the solr-home should be initialized with solr.xml and zoo.cfg copied from the default solr-home.  I think configsets should be referenced from the default solr-home if there is no configsets dir in solr-home.



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