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Issue AH01071 Failed to open stream: Too many open files in ...

JohnWest

New Pleskian
Server operating system version
Ubuntu 22.04.5 LTS
Plesk version and microupdate number
lesk Obsidian v18.0.64_build1800241008.13 os_Ubuntu 22.04
Hi All,

I've got a server with 3 domains on it.
Nothing too crazy here.

One of the website is recently experience error 500.
It seems to be that the site grew recently and I'm hitting an error I've not encountered before.

AH01071: Got error 'PHP message: Failed to open stream: Too many open files in ….
follow by bunch of files that errored out when a page load.

I'm not an expert so I checked online here and there, but it wasn't clear if the issue would be something I can fix with a per domain setting (some suggest NGINX level instruction), or Apache (domain level instructions), or apache module overall, or event the whole system.

What's certain is that when this error hits, only this domain is experiencing issues. Not the others on the same server. Which would point me towards a resolution that can be implemented with domain level settings.

Looking forward to hear about suggestions.
 
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