Failed to restart – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 1.7-1.7

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Briefly, this error occurs when Elasticsearch encounters issues during the restart process. This could be due to insufficient memory, incorrect configuration settings, or a corrupted index. To resolve this, you can increase the memory allocation, check and correct the configuration settings, or repair the corrupted index. If the problem persists, consider checking the Elasticsearch logs for more detailed error messages to help identify the root cause.

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

Log Context

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

           "Initiating requested restart");
                    try {
                    } catch (Exception e) {
                        logger.warn("Failed to restart"; e);
                    } finally {


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