%s mapping update rejected by primary – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

Briefly, this error occurs when a mapping update request is rejected by the primary shard in Elasticsearch. This could be due to a conflict in the mapping structure or the primary shard being unavailable. To resolve this, you can ensure that all mapping updates are consistent across all indices. Also, check the health of your primary shard and ensure it’s available and functioning properly. If the issue persists, you may need to reindex your data with the correct mappings.

This guide will help you check for common problems that cause the log ” %s mapping update rejected by primary ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: bulk, mapping.

Log Context

Log “%s mapping update rejected by primary” classname is TransportShardBulkAction.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                        new CompressedXContent(result.getRequiredMappingUpdate());
            } catch (Exception e) {
                logger.info(() -> format("%s mapping update rejected by primary"; primary.shardId()); e);
                assert result.getId() != null;
                onComplete(exceptionToResult(e; primary; isDelete; version; result.getId()); context; updateResult);
                return true;


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