logstash-output-elasticsearch error

Elastic Stack Logstash
1

[WARN ] 2026-07-09 10:54:37.480 [Ruby-0-Thread-9: /usr/share/logstash/vendor/bundle/jruby/3.4.0/gems/logstash-output-elasticsearch-12.1.3-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:234] elasticsearch - Failed to perform request {message: "Unsupported or unrecognized SSL message", exception: Manticore::UnknownException, cause: #<Java::JavaxNetSsl::SSLException: Unsupported or unrecognized SSL message>}
[WARN ] 2026-07-09 10:54:37.482 [Ruby-0-Thread-9: /usr/share/logstash/vendor/bundle/jruby/3.4.0/gems/logstash-output-elasticsearch-12.1.3-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:234] elasticsearch - Attempted to resurrect connection to dead ES instance, but got an error {url: "https://elastic:xxxxxx@localhost:9200/", exception: LogStash::Outputs::Elasticsearch::HttpClient::Pool::HostUnreachableError, message: "Elasticsearch Unreachable: [https://localhost:9200/\][Manticore::UnknownException] Unsupported or unrecognized SSL message"}
[WARN ] 2026-07-09 10:54:42.505 [Ruby-0-Thread-9: /usr/share/logstash/vendor/bundle/jruby/3.4.0/gems/logstash-output-elasticsearch-12.1.3-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:234] elasticsearch - Failed to perform request {message: "Unsupported or unrecognized SSL message", exception: Manticore::UnknownException, cause: #<Java::JavaxNetSsl::SSLException: Unsupported or unrecognized SSL message>}
[WARN ] 2026-07-09 10:54:42.507 [Ruby-0-Thread-9: /usr/share/logstash/vendor/bundle/jruby/3.4.0/gems/logstash-output-elasticsearch-12.1.3-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:234] elasticsearch - Attempted to resurrect connection to dead ES instance, but got an error {url: "https://elastic:xxxxxx@localhost:9200/", exception: LogStash::Outputs::Elasticsearch::HttpClient::Pool::HostUnreachableError, message: "Elasticsearch Unreachable: [https://localhost:9200/\][Manticore::UnknownException] Unsupported or unrecognized SSL message"}

2

Welcome to the community!

Can you show us how you set params in the output?