# Errors Updating logstash from 8.5.3 to 8.8.0

**URL:** <https://discuss.elastic.co/t/errors-updating-logstash-from-8-5-3-to-8-8-0/335531>\
**Category:** Logstash\
**Tags:** elastic-stack-security\
**Created:** [June 8, 2023, 12:16pm UTC](https://discuss.elastic.co/t/errors-updating-logstash-from-8-5-3-to-8-8-0/335531 "2023-06-08T12:16:56Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![carly.richmond](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/carly.richmond/32/104935_2.png) [@carly.richmond](https://discuss.elastic.co/u/carly.richmond)\
**Post date:** [June 8, 2023, 12:27pm UTC](https://discuss.elastic.co/t/errors-updating-logstash-from-8-5-3-to-8-8-0/335531/2 "2023-06-08T12:27:03Z")

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Hi Cristian,

> [@cperzrt10](#):
>
> ```auto
> [2023-06-08T13:06:33,163][WARN][logstash.outputs.elasticsearch] You are using a deprecated config setting "cacert" set in elasticsearch. Deprecated settings will continue to work, but are scheduled for removal from logstash in the future. Set 'ssl_certificate_authorities' instead. If you have any questions about this, please visit the #logstash channel on freenode irc. {......}
> 
> [2023-06-08T13:06:33,173][WARN][logstash.outputs.elasticsearch] You are using a deprecated config setting "ssl_certificate_verification" set in elasticsearch. Deprecated settings will continue to work, but are scheduled for removal from logstash in the future. Set 'ssl_verification_mode' instead. If you have any questions about this, please visit the #logstash channel on freenode irc. {......}
> 
> [2023-06-08T13:06:33,174][WARN][logstash.outputs.elasticsearch] You are using a deprecated config setting "ssl" set in elasticsearch. Deprecated settings will continue to work, but are scheduled for removal from logstash in the future. Set 'ssl_enabled' instead. If you have any questions about this, please visit the #logstash channel on freenode irc. {......}
> 
> ```

Those are deprecation warnings that you can remediate using the recommendations in the particular warning.

> [@cperzrt10](#):
>
> ```auto
> [2023-06-08T13:06:33,915][ERROR][logstash.licensechecker.licensereader] Unable to retrieve license information from license server {:message=>"No Available connections"}
> [2023-06-08T13:06:33,944][ERROR][logstash.configmanagement.elasticsearchsource] Failed to fetch X-Pack information from Elasticsearch. This is likely due to failure to reach a live Elasticsearch cluster.
> [2023-06-08T13:06:33,946][FATAL][logstash.runner] An unexpected error occurred! {:error=>#<LogStash::LicenseChecker::LicenseError: Failed to fetch X-Pack information from Elasticsearch. This is likely due to failure to reach a live Elasticsearch cluster.>, :backtrace=>["/usr/share/logstash/x-pack/lib/license_checker/licensed.rb:67:in `with_license_check'", "/usr/share/logstash/x-pack/lib/config_management/elasticsearch_source.rb:43:in `initialize'", "org/jruby/RubyClass.java:911:in `new'", "/usr/share/logstash/x-pack/lib/config_management/hooks.rb:41:in `after_bootstrap_checks'", "org/logstash/execution/EventDispatcherExt.java:94:in `execute'", "/usr/share/logstash/logstash-core/lib/logstash/runner.rb:363:in `execute'", "/usr/share/logstash/vendor/bundle/jruby/2.6.0/gems/clamp-1.0.1/lib/clamp/command.rb:68:in `run'", "/usr/share/logstash/logstash-core/lib/logstash/runner.rb:287:in `run'", "/usr/share/logstash/vendor/bundle/jruby/2.6.0/gems/clamp-1.0.1/lib/clamp/command.rb:133:in `run'", "/usr/share/logstash/lib/bootstrap/environment.rb:90:in `<main>'"]}
> 
> ```

If looks like Logstash is not able to connect to Elasticsearch. Can you check your connection and certificate information [as per this thread](https://discuss.elastic.co/t/unable-to-retrieve-license-information-from-license-server-message-no-available-connections/302175/7)?

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_[View the full topic](https://discuss.elastic.co/t/errors-updating-logstash-from-8-5-3-to-8-8-0/335531)._