I have 2 servers, 2 with same version and configuration. But only in one of them, it has this file in it:
root/www/swap
It has 1Gb of space. Is it safe to delete it? What is it? Can i manually delete it or via app/config in aapanel?
Is it safe to delete file "swap" in folder www?
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aaP_erikator
It's a swap file that provides virtual memory space. When physical RAM gets full, the system uses this space as additional memory (it depends on the how high the swappiness is), and having 1GB of swap space is a common configuration.
If you want to delete it, first you need to see the current swap usage (not recommend to delete if it's used):
free -h
then you can properly remove it through terminal / ssh:
sudo swapoff /root/www/swap
sudo rm /root/www/swap
Thank you, that means, my other server without swap file wasnt running out of RAM then? because it doesnt need swap file for additional memory right?
aaP_erikator
If you have enough physical memory to handle both server, then swap file isn't necessary. Remember, virtual memory is slower than physical memory (especially if you're still using harddisk) but it's a good solution when you have a limited RAM. You can adjust it based on your preference.
aaP_radipta289
I just checked, both my servers show using swap memory. But only in one of them has swap file in www folder. Where is the other one? I havent touched anything
- Edited
First, check all active swap locations:
sudo swapon --show
This will show the full path and type (file/partition) of all active swap spaces.
To see if it's a partition or file:
free -h
lsblk | grep SWAP
Share the result
aaP_radipta289
Oh i see, one is in root folder, one is in www folder.
I thought aapanel configuration by default should be same? I havent touched any special configuration
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aaP_erikator
it's fine. I suggest not to interfere with that swap configuration.
Based on your case, I think:
- One server might have had the swap file created during OS installation
- The other might have had it created during aaPanel installation or later