Erick Erickson created SOLR-10721:
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Summary: Provide a way to know when Core Discovery is finished and
when all async cores are done loading
Key: SOLR-10721
URL: https://issues.apache.org/jira/browse/SOLR-10721
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Erick Erickson
Assignee: Erick Erickson
Priority: Minor
Custom transient core implementations could benefit from knowing two things:
1> that core discovery is over
2> that all cores that are going to be loaded have been loaded, i.e. all
loadOnStartup cores are done.
It should be trivial to add a method to CoreContainer like "isLoaded" that
would answer the first question since you can't get past the load() method
without all the cores being discovered. I think this is a more generally useful
bit of information than just core discovery is done.
As for the second, that too seems trivial, just add a method to CoreContainer
that returns the number of entries in SolrCores.currentlyLoadingCores.
I'll add this in a few days unless there are objections.
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