Could not parse condition for watch failed to parse script – 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 condition for a watch due to a script parsing failure. This could be due to incorrect syntax, missing or invalid parameters in the script. To resolve this issue, you should first verify the syntax of your script. Ensure that all required parameters are included and correctly formatted. If the script is complex, try breaking it down into simpler parts and testing each part individually. Also, check the Elasticsearch logs for more detailed error messages that can help pinpoint the problem.

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

 public static ScriptCondition parse(ScriptService scriptService; String watchId; XContentParser parser) throws IOException {
 try {
 Script script = Script.parse(parser);
 return new ScriptCondition(script; scriptService);
 } catch (ElasticsearchParseException pe) {
 throw new ElasticsearchParseException("could not parse [{}] condition for watch [{}]. failed to parse script"; pe; TYPE;
 }  @Override


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