Could not parse watch missing required field – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

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Briefly, this error occurs when Elasticsearch is unable to parse a watch due to a missing required field. Watches are used for alerting in Elasticsearch and each watch must contain certain required fields. If any of these fields are missing, you will encounter this error. To resolve this issue, you should review the structure of your watch and ensure that all required fields are included. This might include fields like ‘trigger’, ‘input’, ‘condition’, and ‘actions’. Make sure that these fields are correctly formatted and contain valid values.

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This guide will help you check for common problems that cause the log ” could not parse watch [{}]. missing required field [{}] ” 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 watch [{}]. missing required field [{}]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 } else {
 throw new ElasticsearchParseException("could not parse watch [{}]. unexpected field [{}]"; id; currentFieldName);
 if (trigger == null) {
 throw new ElasticsearchParseException("could not parse watch [{}]. missing required field [{}]"; id;
 }  if (status != null) {
 // verify the status is valid (that every action indeed has a status)


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