Attempted to do a bulk index request for failed transform – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.4-8.9

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Briefly, this error occurs when Elasticsearch attempts to perform a bulk index operation for a data transformation that has previously failed. This could be due to various reasons such as insufficient memory, incorrect data format, or network issues. To resolve this, you can try increasing the memory allocation, checking the data format for any inconsistencies, or ensuring the network connectivity is stable. Additionally, check the transform configuration and logs for any specific issues. If the problem persists, consider breaking down the bulk operation into smaller parts.

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This guide will help you check for common problems that cause the log ” Attempted to do a bulk index request for failed transform [{}]. ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, index, bulk, request.

Log Context

Log “Attempted to do a bulk index request for failed transform [{}].” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 protected void doNextBulk(BulkRequest request; ActionListener nextPhase) {
 if (context.getTaskState() == TransformTaskState.FAILED) {
 logger.debug("[{}] attempted to bulk index while failed."; getJobId());
 nextPhase.onFailure(new ElasticsearchException("Attempted to do a bulk index request for failed transform [{}]."; getJobId()));


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