Logstash errors

Hello,

I have configured some hosts with filebeat and setup logstash to parse the logs. However the whole thing is failing and on the logstash I can see the following errors:

[2018-02-26T20:53:32,226][INFO ][logstash.outputs.elasticsearch] retrying failed action with response code: 503 ({"type"=>"process_cluster_event_timeout_exception", "reason"=>"failed to process cluster event (put-mapping) within 30s"})
[2018-02-26T20:53:32,228][INFO ][logstash.outputs.elasticsearch] Retrying individual bulk actions that failed or were rejected by the previous bulk request. {:count=>1}

Anything I can do to fix this?

Your ES logs should contain clues about why ES is returning 503.

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