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https://issues.apache.org/jira/browse/SOLR-13035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16706599#comment-16706599
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Shalin Shekhar Mangar commented on SOLR-13035:
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I think the core case of separating read-only directories of Solr and writable
directories should be addressed. The docker-solr project had to do a lot of
workarounds to make this work. The world is moving to containers and we need to
make those use-cases easy.
In a container, the directory containing configuration such as solr.xml is
empty so that a volume can be mounted there, same for instance dir and data
dir. The rest of the directories in the container should be read-only.
The solr.data.home takes us most of the way there. But if that's not the right
flag then we can change it or create a new one (I don't like the latter idea).
Perhaps we can it {{solr.write.dir}}? Now the ideal directory layout can be
top-level directories such as {{conf}}, {{data}}, {{logs}} instead of
conflating them under a {{server/solr}} directory as today. If people agree on
that then we can work on doing this for 8.0.
> Utilize solr.data.home / solrDataHome in solr.xml to set all writable files
> in single directory
> -----------------------------------------------------------------------------------------------
>
> Key: SOLR-13035
> URL: https://issues.apache.org/jira/browse/SOLR-13035
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Amrit Sarkar
> Priority: Major
> Attachments: SOLR-13035.patch
>
>
> {{solr.data.home}} system property or {{solrDataHome}} in _solr.xml_ is
> already available as per SOLR-6671.
> The writable content in Solr are index files, core properties, and ZK data if
> embedded zookeeper is also started in SolrCloud mode. It would be great if
> all writable content can come under the same directory.
> It can then also solve official docker Solr image issues:
> https://github.com/docker-solr/docker-solr/issues/74
> https://github.com/docker-solr/docker-solr/issues/133
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