Expected mapper parsing failures got – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.

Briefly, this error occurs when Elasticsearch encounters unexpected issues during the mapping process. This could be due to incorrect data types, incorrect field names, or other inconsistencies in the data being indexed. To resolve this issue, you can check the data being indexed for inconsistencies, ensure that the mapping is correctly defined for the data, or use the Elasticsearch error logs to identify the specific issue causing the error.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” expected mapper parsing failures. got ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: replication.

Log Context

Log “expected mapper parsing failures. got” class name is TransportWriteAction.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 throws Exception {
 final Location location;
 if (operationResult.getFailure() != null) {
 // check if any transient write operation failures should be bubbled up
 Exception failure = operationResult.getFailure();
 assert failure instanceof MapperParsingException : "expected mapper parsing failures. got " + failure;
 throw failure;
 } else {
 location = locationToSync(currentLocation; operationResult.getTranslogLocation());
 }
 return location;

 

How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?

Get expert answers on Elasticsearch/OpenSearch