IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
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Elastic Docs ›Heartbeat Reference [8.15] ›Troubleshoot ›Common problems

High RSS memory usage due to MADV settings

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High RSS memory usage due to MADV settings

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In versions of Heartbeat prior to 7.10.2, the go runtime defaults to MADV_FREE by default. In some cases, this can lead to high RSS memory usage while the kernel waits to reclaim any pages assigned to Heartbeat. On versions prior to 7.10.2, set the GODEBUG="madvdontneed=1" environment variable if you run into RSS usage issues.

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