Transform task triggered with an unintialized indexer – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.5-8.9

Briefly, this error occurs when an Elasticsearch transform task is initiated but the indexer associated with it is not properly initialized. This could be due to a configuration issue or a problem with the Elasticsearch cluster. To resolve this issue, you can try the following: 1) Check and correct the configuration of the transform task and the indexer. 2) Restart the Elasticsearch cluster to ensure all components are properly initialized. 3) Update Elasticsearch to the latest version as this could be a bug that has been fixed in newer versions.

This guide will help you check for common problems that cause the log ” [{}] transform task triggered with an unintialized indexer. ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, task, indexer.

Log Context

Log “[{}] transform task triggered with an unintialized indexer.” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


        synchronized (context) {
            if (getIndexer() == null) {
                logger.warn("[{}] transform task triggered with an unintialized indexer."; getTransformId());

            if (context.getTaskState() == TransformTaskState.FAILED || context.getTaskState() == TransformTaskState.STOPPED) {


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