Paul Blanchaert created SOLR-16631:
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Summary: solr.shardsWhitelist - hostnames should be treated in
case insensitive way
Key: SOLR-16631
URL: https://issues.apache.org/jira/browse/SOLR-16631
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCloud
Affects Versions: 9.1, 8.11, 9.0
Reporter: Paul Blanchaert
Given that hostnames should be case insensitive (see
[rfc3986;section-6.2.2.1|https://www.rfc-editor.org/rfc/rfc3986#section-6.2.2.1]),
the check for should also consider hostnames in urls in a case insentive way.
That is not the case (not in Solr 8 and not after refactoring in Solr 9).
Most people are using always lowercases for hostnames in urls, so probably not
encountered that often and there is an easy and quick fix by changing the
parameter to match the actual cases used in the hostname, hence priority is
"Minor". But still, it is better to comply with well-established rules.
Easy test via changing 1 char to uppercase in the hostname of the unit test
AllowListUrlCheckerTest.testSingleHost().
E.g. test result:
URL http://abc-1.Com:8983/solr is neither a live node of the cluster nor in the
configured 'allowUrls' [abc-1.com:8983]
org.apache.solr.common.SolrException: URL http://abc-1.Com:8983/solr is neither
a live node of the cluster nor in the configured 'allowUrls' [abc-1.com:8983]
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