Failed to start monitoring service – 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 is unable to start its internal monitoring service. This could be due to a variety of reasons such as incorrect configuration settings, insufficient system resources, or conflicts with other running services. To resolve this issue, you can check the Elasticsearch logs for more detailed error messages. Ensure that the system has enough resources (CPU, memory, disk space). Review and correct the Elasticsearch configuration if necessary. If other services are causing conflicts, try to isolate Elasticsearch or adjust the conflicting services.

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This guide will help you check for common problems that cause the log ” failed to start monitoring service ” 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 start monitoring service” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            try {
                logger.debug("monitoring service is starting");
                logger.debug("monitoring service started");
            } catch (Exception e) {
                logger.error("failed to start monitoring service"; e);
                throw e;


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