Exception retrieving total physical memory – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch is unable to retrieve the total physical memory of the system. This could be due to insufficient permissions, incorrect configuration, or an unsupported operating system. To resolve this issue, you can try running Elasticsearch with administrative privileges, checking your system’s configuration, or ensuring that your operating system is compatible with Elasticsearch. Additionally, you can also try updating your Elasticsearch to the latest version as it might contain fixes for this issue.

This guide will help you check for common problems that cause the log ” exception retrieving total physical memory ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: monitor, memory.

Log Context

Log “exception retrieving total physical memory” classname is OsProbe.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                totalMem = getTotalMemFromProcMeminfo();

            return totalMem;
        } catch (Exception e) {
            logger.warn("exception retrieving total physical memory"; e);
            return 0;



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