Failed to add query – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 2.3-2.3

Briefly, this error occurs when Elasticsearch is unable to add a query due to issues like incorrect query syntax, incompatible data types, or insufficient resources. To resolve this, you can check the query syntax for any errors and ensure it matches the Elasticsearch query DSL. Also, verify that the data types in your query match those in your index. If the issue persists, consider increasing the resources allocated to Elasticsearch, as the error might be due to insufficient memory or disk space.

This guide will help you check for common problems that cause the log ” failed to add query [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: delete-by-query, index and percolator.

Log Context

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

} else {
                    logger.warn("failed to add query [{}] - parser returned null"; id);

            } catch (Exception e) {
                logger.warn("failed to add query [{}]"; e; id.utf8ToString());



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