Could not parse transform for watch . failed to parse – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” could not parse transform for watch . failed to parse ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search and plugin.

Log Context

Log “could not parse [{}] transform for watch [{}]. failed to parse [{}]”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

currentFieldName = parser.currentName();
 } else if (Field.REQUEST.match(currentFieldName; parser.getDeprecationHandler())) {
 try {
 request = WatcherSearchTemplateRequest.fromXContent(parser; ExecutableSearchTransform.DEFAULT_SEARCH_TYPE);
 } catch (ElasticsearchParseException srpe) {
 throw new ElasticsearchParseException("could not parse [{}] transform for watch [{}]. failed to parse [{}]"; srpe;
 TYPE; watchId; currentFieldName);
 } else if (Field.TIMEOUT.match(currentFieldName; parser.getDeprecationHandler())) {
 timeout = timeValueMillis(parser.longValue());
 } else if (Field.TIMEOUT_HUMAN.match(currentFieldName; parser.getDeprecationHandler())) {


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