Jan Høydahl created SOLR-6671:
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Summary: Introduce a solr.data.root as root dir for all data
Key: SOLR-6671
URL: https://issues.apache.org/jira/browse/SOLR-6671
Project: Solr
Issue Type: Bug
Components: SolrCloud
Affects Versions: 4.10.1
Reporter: Jan Høydahl
Fix For: 5.0, Trunk
Many users prefer to deploy code, config and data on separate disk locations,
so the default of placing the indexes under
{{$\{solr.solr.home\}/$\{solr.core.name\}/data}} is not always wanted.
In a multi-core/collection system, there is not much help in the
{{solr.data.dir}} option, as it would set the {{dataDir}} to the same folder
for all collections. One workaround, if you don't want to hardcode paths in
your {{solrconfig.xml}}, is to specify the {{dataDir}} property in each
{{solr.properties}} file.
A more elegant solution would be to introduce a new Java-option
{{solr.data.root}} which would be to data the same as {{solr.solr.home}} is for
config. If set, all collections would default their {{dataDir}} as
{{$\{solr.data.root\)/$\{solr.core.name\}/data}}
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