Support pluggable peristence/loading of solr.xml details
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Key: SOLR-1306
URL: https://issues.apache.org/jira/browse/SOLR-1306
Project: Solr
Issue Type: New Feature
Reporter: Noble Paul
Persisting and loading details from one xml is fine if the no:of cores are
small and the no:of cores are few/fixed . If there are 10's of thousands of
cores in a single box adding a new core (with persistent=true) becomes very
expensive because every core creation has to write this huge xml.
Moreover , there is a good chance that the file gets corrupted and all the
cores become unusable . In that case I would prefer it to be stored in a
centralized DB which is backed up/replicated and all the information is
available in a centralized location.
We may need to refactor CoreContainer to have a pluggable implementation which
can load/persist the details . The default implementation should write/read
from/to solr.xml . And the class should be pluggable as follows in solr.xml
{code:xml}
<solr dataProvider="com.foo.FoodataProvider">
</solr>
{code}
There will be a new interface (or abstract class ) called SolrDataProvider
which this class must implement
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