Attempted to start a 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 you try to start a transform in Elasticsearch that has previously failed. This could be due to various reasons such as insufficient resources, incorrect configurations, or data issues. To resolve this, you can first check the transform’s failure reason in the Elasticsearch logs. Then, depending on the cause, you may need to adjust your configurations, allocate more resources, or fix the data causing the failure. After addressing the issue, you can then attempt to restart the transform.

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

Log Context

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

 @Override
 protected void onStart(long now; ActionListener listener) {
 if (context.getTaskState() == TransformTaskState.FAILED) {
 logger.debug("[{}] attempted to start while failed."; getJobId());
 listener.onFailure(new ElasticsearchException("Attempted to start a failed transform [{}]."; getJobId()));
 return;
 }  ActionListener finalListener = ActionListener.wrap(r -> {
 try {

 

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