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https://issues.apache.org/jira/browse/SOLR-11250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16150252#comment-16150252
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Yuki Yano commented on SOLR-11250:
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[~shalinmangar] [~cpoerschke]]
I have a question about {{BlobRepository}}.
In my understanding, we need to access {{CoreContainer#getBlobRepository()}} to
get {{BlobRepository}} instance. One possible way is to implement {{SolrAware}}
and call {{core.getCoreContainer().getBlobRepository()}}. However,
unfortunately, we don't have a class which is allowed to implement
{{SolrAware}} (see: {{SolrResourceLoader#awareCompatibility}}) in LTR plugins.
I think that adding new {{SolrAware}} class like {{SearchComponent}} isn't good
way because this requires to modify {{solrconfig.xml}} for enabling new
component. Do you have any idea to refer {{BlobRepository}} in LTR plugin?
> Add new LTR model which loads the model definition from the external resource
> -----------------------------------------------------------------------------
>
> Key: SOLR-11250
> URL: https://issues.apache.org/jira/browse/SOLR-11250
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: contrib - LTR
> Reporter: Yuki Yano
> Priority: Minor
> Attachments: SOLR-11250_master.patch, SOLR-11250_master_v2.patch,
> SOLR-11250_master_v3.patch, SOLR-11250.patch
>
>
> We add new model which contains only the location of the external model and
> loads it during the initialization.
> By this procedure, large models which are difficult to upload to ZooKeeper
> can be available.
> The new model works as the wrapper of existing models, and deligates APIs to
> them.
> We add two classes by this patch:
> * {{ExternalModel}} : a base class for models with external resources.
> * {{URIExternalModel}} : an implementation of {{ExternalModel}} which loads
> the external model from specified URI (ex. file:, http:, etc.).
> For example, if you have a model on the local disk
> "file:///var/models/myModel.json", the definition of {{URIExternalModel}}
> will be like the following.
> {code}
> {
> "class" : "org.apache.solr.ltr.model.URIExternalModel",
> "name" : "myURIExternalModel",
> "features" : [],
> "params" : {
> "uri" : "file:///var/models/myModel.json"
> }
> }
> {code}
> If you use LTR with {{model=myURIExternalModel}}, the model of
> {{myModel.json}} will be used for scoring documents.
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