Could not parse trigger for unknown trigger type – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch encounters an unknown trigger type while parsing a trigger for a specific job. This could be due to a typo in the trigger type or using a trigger type that is not supported. To resolve this issue, you should verify the trigger type in your request. Make sure it is spelled correctly and is a supported trigger type in Elasticsearch. If the problem persists, check your Elasticsearch version as some trigger types might not be available in older versions.

This guide will help you check for common problems that cause the log ” could not parse trigger [{}] for [{}]. unknown trigger type [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “could not parse trigger [{}] for [{}]. unknown trigger type [{}]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 }  public Trigger parseTrigger(String jobName; String type; XContentParser parser) throws IOException {
 TriggerEngine engine = engines.get(type);
 if (engine == null) {
 throw new ElasticsearchParseException("could not parse trigger [{}] for [{}]. unknown trigger type [{}]"; type; jobName; type);
 return engine.parseTrigger(jobName; parser);
 }  public TriggerEvent parseTriggerEvent(String watchId; String context; XContentParser parser) throws IOException {