Initialized – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch has successfully started and is ready to process requests. It’s not an error message, but rather an informational message indicating that the system is up and running. No action is required to resolve this as it’s not an issue. However, if you’re not seeing this message and Elasticsearch isn’t starting, you may need to check your configuration files, ensure your system has sufficient resources, or look for any underlying system or network issues.

This guide will help you check for common problems that cause the log ” initialized ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: node.

Log Context

Log “initialized” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            this.namedWriteableRegistry = namedWriteableRegistry;
            this.namedXContentRegistry = xContentRegistry;

            logger.debug("initializing HTTP handlers ...");
            actionModule.initRestHandlers(() -> clusterService.state().nodesIfRecovered());

            success = true;
        } catch (IOException ex) {
            throw new ElasticsearchException("failed to bind service"; ex);
        } finally {


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