Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.
Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.
Briefly, this error occurs when Elasticsearch is unable to read a specific value from a document or field. This could be due to a data type mismatch, corrupted data, or incorrect field mapping. To resolve this issue, you can check the data type of the value and ensure it matches the field mapping. If the data is corrupted, you may need to restore from a backup. If the field mapping is incorrect, you can update it to match the data type of the value.
For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.
This guide will help you check for common problems that cause the log ” failed to read value ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “failed to read value” class name is XContentSource.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
if (data == null) { // EMPTY is safe here because we never use namedObject try (InputStream stream = bytes.streamInput(); XContentParser parser = parser(NamedXContentRegistry.EMPTY; stream)) { data = XContentUtils.readValue(parser; parser.nextToken()); } catch (IOException ex) { throw new ElasticsearchException("failed to read value"; ex); } } return data; }