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https://issues.apache.org/jira/browse/SOLR-5103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14702771#comment-14702771
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Jan Høydahl commented on SOLR-5103:
-----------------------------------
After we got SOLR-7073, we can now add a single {{.jar}} to a collection by
uploading it to {{.system}} collection. Could we perhaps piggyback on this
mechanism for full-blown plugins as well?
I.e. we similarly upload a plugin, e.g. {{my-cool-responsewriter-plugin.zip}}
to {{.system}}. Solr will then automatically inspect the zip, add jars to
classpath and register the new responsewriter under its default name.
On node start, we would iterate over all registered plugins in {{.system}} and
register them. Perhaps a super generic way to support auto wiring is to allow
scripts in the zip root, like {{config-api-commands.json}} and
{{schema-api-commands.json}}, which will be replayed on load. Then a FieldType
plugin can e.g. register itself with a {{fieldType}} and {{dynamicField}} in
schema.
The whole idea of such a zip format would be to encourage creation of 3rd party
plugins that can be installed from AdminUI or {{bin/solr installplugin
my-plugin.zip}}, and perhaps also more modularization of the Solr distro, i.e.
our contribs would become plugins and not litter solrconfig.xml with config
that is only active if a system property is enabled.
> Plugin Improvements
> -------------------
>
> Key: SOLR-5103
> URL: https://issues.apache.org/jira/browse/SOLR-5103
> Project: Solr
> Issue Type: Improvement
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Fix For: Trunk
>
>
> I think for 5.0, we should make it easier to add plugins by defining a plugin
> package, ala a Hadoop Job jar, which is a self--contained archive of a plugin
> that can be easily installed (even from the UI!) and configured
> programmatically.
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