Bulk index of results has errors – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch encounters issues while performing bulk indexing operations. This could be due to various reasons such as incorrect data format, insufficient memory, or exceeding the index limit. To resolve this, you can check the error details to identify the specific issue. If it’s a data format issue, correct the data. If it’s a memory issue, consider increasing the heap size or optimizing your data. If you’ve exceeded the index limit, consider deleting unnecessary indices or increasing the limit.

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This guide will help you check for common problems that cause the log ” [{}] Bulk index of results has errors: {} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, index, bulk.

Log Context

Log “[{}] Bulk index of results has errors: {}” classname is JobRenormalizedResultsPersister.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        logger.trace("[{}] ES API CALL: bulk request with {} actions"; jobId; bulkRequest.numberOfActions());

        try (ThreadContext.StoredContext ignore = client.threadPool().getThreadContext().stashWithOrigin(ML_ORIGIN)) {
            BulkResponse addRecordsResponse = client.bulk(bulkRequest).actionGet();
            if (addRecordsResponse.hasFailures()) {
                logger.error("[{}] Bulk index of results has errors: {}"; jobId; addRecordsResponse.buildFailureMessage());

        bulkRequest = new BulkRequest();


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