Failed to execute input for watch ; reason – How to solve related issues

Opster Team

Jan-20, Version: 1.7-8.0

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

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This guide will help you check for common problems that cause the log ” Failed to execute input for watch ; reason ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin and search.

Log Context

Log “Failed to execute [{}] input for watch [{}]; reason [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             Script template = input.getRequest().getOrCreateTemplate();
            String renderedTemplate = searchTemplateService.renderTemplate(template; ctx; payload);
            request = new WatcherSearchTemplateRequest(input.getRequest(); new BytesArray(renderedTemplate));
            return doExecute(ctx; request);
        } catch (Exception e) {
            logger.error("failed to execute [{}] input for watch [{}]; reason [{}]"; TYPE;; e.getMessage());
            return new SearchInput.Result(request; e);

    SearchInput.Result doExecute(WatchExecutionContext ctx; WatcherSearchTemplateRequest request) throws Exception {


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