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https://issues.apache.org/jira/browse/SOLR-13637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16890265#comment-16890265
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ASF subversion and git services commented on SOLR-13637:
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Commit 2ef0ba3dceec342c9754d2e44f943e5b8d61b89f in lucene-solr's branch
refs/heads/master from Noble Paul
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=2ef0ba3 ]
SOLR-13637: addressing test failures
> Enable loading of plugins from the corecontainer memclassloader
> ---------------------------------------------------------------
>
> Key: SOLR-13637
> URL: https://issues.apache.org/jira/browse/SOLR-13637
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Noble Paul
> Priority: Major
> Time Spent: 20m
> Remaining Estimate: 0h
>
> When we update jars or add/modify plugins no core reloading should be
> required .Core reloading is a very expensive operation. Optionally, we can
> just make the plugin depend on the corecontainer level classloader.
> {code:xml}
> <queryParser name="mycustomQParser" class="my.path.to.ClassName"
> runtimeLib="global">
>
> </queryParser>
> {code}
> or alternately using the config API
> {code:json}
> curl -X POST -H 'Content-type:application/json' --data-binary '
> {
> "create-queryparser": {
> "name": "mycustomQParser" ,
> "class" : "my.path.to.ClassName",
> "runtimeLib" : "global"
> }
> }' http://localhost:8983/api/c/mycollection/config
> {code}
> The global classloader is the corecontainer level classloader . So whenever
> this is reloaded The component gets reloaded. The only caveat is, this
> component cannot use core specific jars.
> We will deprecate the {{runtimeLib = true/false}} option and the new options
> are
> * {{runtimeLib=core}} : means this uses the runtimeLib of the collection
> * {{runtimeLib= global}} : means this uses the runtimeLib of the
> corecontainer
> example command to update global jar . This will lead to a reload of all
> components marked as {{runtimeLib=global}}
> {code}
> curl -X POST -H 'Content-type:application/json' --data-binary '
> {
> "update-runtimelib": {
> "name": "lib-name" ,
> "url" : "http://host:port/url/of/jar";,
> "sha512":"<the-new-sha512>"
> }
> }' http://localhost:8983/api/cluster
> {code}
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