I have been fighting this issue off and on for some time.
Logstash: 5.6.4
Elastic: 5.6.4
CentOS 7
Logstash filters:
"name" : "logstash-output-elasticsearch",
"version" : "7.4.2"
"name" : "logstash-input-tcp", // we use this to send messages in to logstash
"version" : "4.2.4"
[ERROR][logstash.outputs.elasticsearch] Encountered a retryable error. Will Retry with exponential backoff {:code=>400, :url=>"http://########:9200/_bulk"}
We see no errors in elastic logs.
How do we engage this?