Error writing model definition – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8-8.2

Briefly, this error occurs when Elasticsearch encounters issues while trying to write a machine learning model definition to the index. This could be due to insufficient permissions, lack of disk space, or a network connectivity issue. To resolve this, you can check and ensure that the Elasticsearch cluster has enough disk space and the necessary permissions. Also, verify the network connectivity between the nodes. If the issue persists, consider checking the Elasticsearch logs for more detailed error information.

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

Log Context

Log “[{}] error writing model definition” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


                } catch (IOException e) {
                    logger.error(new ParameterizedMessage("[{}] error writing model definition"; modelId); e);


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