Mapping updates are not allowed ” + operation + ” – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” mapping updates are not allowed ” + operation + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: recovery, indices and mapping.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “mapping updates are not allowed [” + operation + “]”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 for (Translog.Operation operation : operations) {
 Engine.Result result = indexShard().applyTranslogOperation(operation; Engine.Operation.Origin.PEER_RECOVERY);
 if (result.getResultType() == Engine.Result.Type.MAPPING_UPDATE_REQUIRED) {
 throw new MapperException("mapping updates are not allowed [" + operation + "]");
 if (result.getFailure() != null) {
 if (Assertions.ENABLED && result.getFailure() instanceof MapperException == false) {
 throw new AssertionError("unexpected failure while replicating translog entry"; result.getFailure());


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