%s Error writing %s jobId id == null auto-generated ID – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.4-8.9

Briefly, this error occurs when Elasticsearch is unable to write a job ID because it is null or not properly generated. This could be due to a bug in the application code or a misconfiguration in the Elasticsearch setup. To resolve this issue, you can check the application code to ensure IDs are correctly generated and not null. Also, verify your Elasticsearch configuration to ensure it’s correctly set up to handle job IDs. If the problem persists, consider upgrading Elasticsearch to the latest version as it might be a bug that has been fixed in newer versions.

This guide will help you check for common problems that cause the log ” [%s] Error writing [%s]”; jobId; (id == null) ? “auto-generated ID ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “[%s] Error writing [%s]”; jobId; (id == null) ? “auto-generated ID” classname is JobResultsPersister.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                    retryMessage -> logger.debug("[{}] {} {}"; jobId; id; retryMessage);
            } catch (IOException e) {
                logger.error(() -> format("[%s] Error writing [%s]"; jobId; (id == null) ? "auto-generated ID" : id); e);
                IndexResponse.Builder notCreatedResponse = new IndexResponse.Builder();
                    new BulkResponse(
                        new BulkItemResponse[] { BulkItemResponse.success(0; DocWriteRequest.OpType.INDEX; notCreatedResponse.build()) };


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