Allocation for model with id already exist – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8-8.2

Briefly, this error occurs when Elasticsearch tries to allocate a model with an ID that already exists in the system. This could be due to a programming error or a data inconsistency issue. To resolve this, you can either delete the existing model with the conflicting ID or assign a new unique ID to the model you’re trying to allocate. Additionally, ensure that your application logic is correctly generating unique IDs to prevent such conflicts in the future.

This guide will help you check for common problems that cause the log ” allocation for model with id [{}] already exist ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: allocation, plugin.

Log Context

Log “allocation for model with id [{}] already exist” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 TrainedModelAllocationMetadata.Builder builder = TrainedModelAllocationMetadata.builder(currentState);
 if (builder.hasModel(params.getModelId())) {
 throw new ResourceAlreadyExistsException("allocation for model with id [{}] already exist"; params.getModelId());
 TrainedModelAllocation.Builder allocationBuilder = TrainedModelAllocation.Builder.empty(params);  Set shuttingDownNodes = nodesShuttingDown(currentState);
 Map nodeToReason = new TreeMap<>();


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