Failed to parse operator users file file – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

Briefly, this error occurs when Elasticsearch is unable to parse the operator users file due to issues like incorrect file format, incorrect file path, or insufficient permissions. To resolve this, ensure the file is in the correct format (usually YAML or JSON). Check the file path in your configuration to ensure it’s correct. Lastly, verify that Elasticsearch has the necessary permissions to read the file. If the file is corrupted, you may need to recreate it.

This guide will help you check for common problems that cause the log ” Failed to parse operator users file [” + file + “]. ” 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 parse operator users file [” + file + “].” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                logger.debug("operator user descriptor: [{}]"; operatorUsersDescriptor);
                return operatorUsersDescriptor;
            } catch (IOException | RuntimeException e) {
                logger.error(() -> "Failed to parse operator users file [" + file + "]."; e);
                throw new ElasticsearchParseException("Error parsing operator users file [{}]"; e; file.toAbsolutePath());


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