I keep seeing the following error in logs, still loads all the data, just wondering what might be causing it. I am ingesting into ES via ELB on AWS, running multiple logstash threads on a dedicated instance.
[ERROR] 2017-12-13 20:38:17.459 [[.monitoring-logstash]>worker 0] elasticsearch - Encountered a retryable error. Will Retry with exponential backoff {:code=>500, :url=>"http://host/_xpack/monitoring/_bulk?system_id=logstash&system_api_version=2&interval=1s"}