Stopping deployment reason task getModelId task stoppedReason orElse unknown – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.2-8.7

Briefly, this error occurs when Elasticsearch is trying to stop a deployment task but cannot find the specific task ID or the reason for stopping is unknown. This could be due to a misconfiguration or an internal error. To resolve this issue, you can try the following: 1) Check the task ID and ensure it is correct. 2) Review the Elasticsearch logs for any additional error messages or clues. 3) Verify the configuration settings of your Elasticsearch deployment. 4) If the problem persists, consider restarting your Elasticsearch instance to clear any potential temporary issues.

This guide will help you check for common problems that cause the log ” [{}] Stopping deployment; reason [{}]”; task.getModelId(); task.stoppedReason().orElse(“unknown ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, task.

Log Context

Log “[{}] Stopping deployment; reason [{}]”; task.getModelId(); task.stoppedReason().orElse(“unknown” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


    public void stopDeployment(TrainedModelDeploymentTask task) {
        ProcessContext processContext = processContextByAllocation.remove(task.getId());
        if (processContext != null) {
  "[{}] Stopping deployment; reason [{}]"; task.getModelId(); task.stoppedReason().orElse("unknown"));
        } else {
            logger.warn("[{}] No process context to stop"; task.getModelId());