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https://issues.apache.org/jira/browse/SOLR-9575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15533808#comment-15533808
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David Smiley commented on SOLR-9575:
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Thanks for the input. SOLR-8649 would not be a problem with the additional
requirement of "empty" as indicated in the title of this ticket. It should not
be enough for solr.xml to be absent, in what I propose here -- the directory
should be *empty*. If that is not convincing enough, then what about an
additional optional env variable like SOLR_HOME_INIT_EMPTY? I'm not opposed to
a separate {{bin/solr init-home ...}} suggestion, but that doesn't resolve this
issue -- it doesn't help Docker specifically in which I can only set one
command to run, plus env variables. Yeah people can and do build their own
images for software they use all the time, but Solr would be much easier to use
via Docker if we didn't ask people to do that.
> Initialize an empty solr-home
> -----------------------------
>
> Key: SOLR-9575
> URL: https://issues.apache.org/jira/browse/SOLR-9575
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: David Smiley
>
> 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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