Unexpected failure on mapping update listener callback – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 1.7-1.7

Briefly, this error occurs when Elasticsearch encounters an issue while updating the mapping of an index. This could be due to a variety of reasons such as incorrect mapping syntax, insufficient resources, or a network issue. To resolve this, you can check the mapping syntax for any errors, ensure that the Elasticsearch cluster has enough resources, and verify the network connectivity. Additionally, checking the Elasticsearch logs can provide more details about the exact cause of the error.

In addition we recommend you run the Elasticsearch Template Optimizer to fix problems in your data modeling.

It will analyze your templates to detect issues and improve search performance, reduce indexing bottlenecks and optimize storage utilization. The Template Optimizer is free and requires no installation.

Log Context

Log “unexpected failure on mapping update listener callback [{}]” classname is MappingUpdatedAction.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                        } else {
                    } catch (Throwable lisFailure) {
                        logger.warn("unexpected failure on mapping update listener callback [{}]"; lisFailure; listener);


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