# Logstash errors **URL:** \ **Category:** Logstash\ **Created:** [February 26, 2018, 9:04pm UTC](https://discuss.elastic.co/t/logstash-errors/121566 "2018-02-26T21:04:01Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![zozo6015](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/zozo6015/32/12117_2.png) [@zozo6015](https://discuss.elastic.co/u/zozo6015)\ **Post date:** [February 26, 2018, 9:04pm UTC](https://discuss.elastic.co/t/logstash-errors/121566/1 "2018-02-26T21:04:01Z")
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? ---
**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\ **Post date:** [February 27, 2018, 7:02am UTC](https://discuss.elastic.co/t/logstash-errors/121566/2 "2018-02-27T07:02:21Z")
Your ES logs should contain clues about why ES is returning 503. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 27, 2018, 7:02am UTC](https://discuss.elastic.co/t/logstash-errors/121566/3 "2018-03-27T07:02:38Z")
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