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

Opster Team

August-23, Version: 6.8-8.9

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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.

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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 {


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