Failed to parse value – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.2-7.17

Briefly, this error occurs when Elasticsearch is unable to interpret the value it has received. This could be due to a mismatch in data types, incorrect date formats, or a malformed query. To resolve this issue, ensure that the data type of the value matches the field’s mapping. If it’s a date field, check the date format. If it’s a query issue, validate the syntax. Also, consider using the Elasticsearch’s built-in tools for debugging and validation.

This guide will help you check for common problems that cause the log ” Failed to parse [{}] value: [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: deprecation, plugin.

Log Context

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

        TimeValue pollInterval;
        try {
            pollInterval = TimeValue.parseTimeValue(pollIntervalString; LIFECYCLE_POLL_INTERVAL_SETTING.getKey());
        } catch (IllegalArgumentException e) {
            logger.error("Failed to parse [{}] value: [{}]"; LIFECYCLE_POLL_INTERVAL_SETTING.getKey(); pollIntervalString);
            return null;

        if (pollInterval.compareTo(TimeValue.timeValueSeconds(1)) 


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