Danny Carr created SOLR-15364:
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Summary: Race condition when maintaining multiple CloudSolrClients
for a mix of HTTP/HTTPS clusters
Key: SOLR-15364
URL: https://issues.apache.org/jira/browse/SOLR-15364
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrJ
Affects Versions: 8.8
Reporter: Danny Carr
After upgrading to SolrJ 8.8.0 in a request gateway server responsible for
maintaining CloudSolrClient connections to multiple SolrCloud clusters, we
began encountering intermittent "java.net.ssl.SSLException: Unrecognized SSL
message, plaintext connection?" errors.
Some of our Solr clusters have HTTPS enabled and some do not - as far as I can
tell, these issues were caused by the introduction of the global UrlScheme
singleton, which would seem to make it impossible to maintain this sort of
heterogenous mix of CloudSolrClients within the same JVM.
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