Assignment for model with id not found - Common causes and quick fixes

Assignment for model with id not found – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8.3-8.7

Briefly, this error occurs when Elasticsearch tries to assign a task to a model with a specific ID, but it can’t find the model. This could be due to the model being deleted, not yet created, or an incorrect ID being used. To resolve this issue, you can verify the model ID, ensure the model exists and hasn’t been deleted, or recreate the model if necessary. Also, check your code for any typos or errors that might be causing the wrong ID to be used.

This guide will help you check for common problems that cause the log ” assignment for model with id [{}] not found ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “assignment for model with id [{}] not found” class name is TransportClearDeploymentCacheAction.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 protected void doExecute(Task task; Request request; ActionListener listener) {
 final ClusterState clusterState = clusterService.state();
 final TrainedModelAssignmentMetadata assignment = TrainedModelAssignmentMetadata.fromState(clusterState);
 TrainedModelAssignment trainedModelAssignment = assignment.getModelAssignment(request.getModelId());
 if (trainedModelAssignment == null) {
 listener.onFailure(new ResourceNotFoundException("assignment for model with id [{}] not found"; request.getModelId()));
 return;
 }
 String[] nodes = trainedModelAssignment.getNodeRoutingTable()
 .entrySet()
 .stream()

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