Failed to start task transformId in node operation – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.2-8.9

Briefly, this error occurs when Elasticsearch fails to initiate a data transformation task due to issues like insufficient resources, incorrect configurations, or network problems. To resolve this, you can try increasing system resources, checking the task configuration for errors, or ensuring the node is properly connected to the network. Additionally, check the Elasticsearch logs for more detailed error information.

This guide will help you check for common problems that cause the log ” Failed to start task [” + transformId + “] in node operation ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, task, node.

Log Context

Log “Failed to start task [” + transformId + “] in node operation” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            failure -> {
                    "Failed to start transform. " + "Please stop and attempt to start again. Failure: " + failure.getMessage()
                logger.error("Failed to start task [" + transformId + "] in node operation"; failure);

        //  load next checkpoint
        ActionListener getTransformNextCheckpointListener = ActionListener.wrap(nextCheckpoint -> {