Logstash issue connecting with elasticsearch after some time

[dominbdg]

Hello, I have below issue, I'm using logstash in docker 7.6.1and after start logstash is running fine. After 30mins I see below errors:

[[main]>worker8] elasticsearch - Attempted to send a bulk request to elasticsearch, but no there are no living connections in the connection pool. Perhaps Elasticsearch is unreachable or down? {:error_message=>"No Available connections", :class=>"LogStash::Outputs::ElasticSearch::HttpClient::Pool::NoConnectionAvailableError", :will_retry_in_seconds=>2}

After that time logstash is not working - I mean not processing indexes and in Kibana I don't see new indexes

[yaauie]

@dominbdg

How is your Elasticsearch configured? Are there any proxies between Logstash and Elasticsearch (including those inherent in docker swarm-mode Elasticsearch clusters)?

Is it possible to upgrade to a more recent Logstash like 7.16.1? A lot has happened since February of 2020 when we released LS 7.6.1.

[Sumit0789]

any update on this issue.

[mashhurs]

Hi @Sumit0789 , We need a clarification to understand the issue behavior.

• Can you describe how is issue happening? After some time is how much time?
• How is Logstash connecting to Elasticsearch and is there any proxies between?
• Have you tried to upgrade Logstash to the closest version (eg.: if you are using 7.x, please try 7.17.7)