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EOA-Blockchain-Labs / ethereumonarm

Tools and scripts to build images that turn ARM devices into ful Ethereum nodes
GNU General Public License v3.0
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Swap usage consistently climbs over time, requiring periodic reboots to mitigate. #69

Closed binomialstew closed 1 month ago

binomialstew commented 9 months ago

I've observed a consistent increase in the "Swap used" metric, reaching levels at least 50% usage after extended periods of uptime on an OrangePi 5 Plus with 16GB of RAM. Despite small fluctuations, the trend is consistently upward, necessitating a system reboot to restore swap levels to reasonable values.

After 2.3 hours of uptime: 2-3-hours

After 5 days of uptime: 5-3-days

In the following graph, the only points where swap is close to 0% is after a reboot. After reboot, it gradually increases again:

Screenshot 2023-11-27 at 7 20 39 PM

On an OrangePi 5 Plus with 16GB of RAM. Running: geth v1.13.4 lighthouse v4.5.0

Even after a reboot, the upward trend resumes.

Is there a memory leak causing this increase in swap usage?

binomialstew commented 1 month ago

This looks to be a hardware issue. 16GB RAM is just not enough. I have the same image and config running on an OrangePi 5 Plus with 32GB of RAM and the swap has never gone over 1%.