Could not parse action failed to parse op type value for – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.1-7.15

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Briefly, this error occurs when Elasticsearch is unable to parse the operation type (op_type) value for a specific action. This could be due to incorrect syntax, invalid operation type, or a missing operation type. To resolve this issue, you can: 1) Check the syntax of your request to ensure it’s correct. 2) Verify that the operation type you’re using is valid and supported by Elasticsearch. 3) Ensure that the operation type is included in your request if it’s required.

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

Log Context

Log “could not parse [{}] action [{}/{}]. failed to parse op_type value for” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 DocWriteRequest.OpType.CREATE; DocWriteRequest.OpType.INDEX).contains(opType) == false) {
 throw new ElasticsearchParseException("could not parse [{}] action [{}/{}]. op_type value for field [{}] " +
 "must be [index] or [create]"; TYPE; watchId; actionId; currentFieldName);
 } catch (IllegalArgumentException e) {
 throw new ElasticsearchParseException("could not parse [{}] action [{}/{}]. failed to parse op_type value for " +
 "field [{}]"; TYPE; watchId; actionId; currentFieldName);
 } else if (Field.EXECUTION_TIME_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
 executionTimeField = parser.text();
 } else if (Field.TIMEOUT_HUMAN.match(currentFieldName; parser.getDeprecationHandler())) {


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