INFO http: Accept error: accept tcp XXX.XXX.XXX.XXX:28967: accept4: too many open files

Hi! What does this error mean? I have to increase files limits for the user running the node?

Set fs.file-max = 16777216 (was 1048576) in /etc/sysctl.conf and applied with sysctl -p

Seems fine now. Will monitor, if it comes up again, as I did not increase the limits per user. Running nodes as service (one node per one different user) on Ubuntu. Have 7 nodes on same machine (different /24 each). 4 nodes on one storage array and 3 nodes on another. Each storage array of 12 HDD of 4 TB - both storage arrays RAID 60.

So, that did not work at all. Had to go to /etc/systemd/system.conf and set DefaultLimitNOFILE=16777216 then rebooted since session required pam_limits.so was not previously added to /etc/pam.d/common-session and the change could not apply.

Monitoring, if that will solve the problem…

Not sure how long this has been going on for, but it obviously caused issues on some nodes. Example:

Can surely say it is not v1.66.1 related.

It seems this solves it. Hope it helps anyone, who experiences this particular problem, too. Cheers!