Member OP
Cat /var/log/syslog | grep "03:00" | awk '{print $5}' | sort | uniq -c | sort -rn | head
Every night | same hour | load average spikes to 8+ | my cron jobs are all 04:00 | so what pipes data at 3AM | I checked crontab -l | crontab -e | even /etc/cron.d | grep -r "03:00" /etc | nothing | dmesg | tail -50 | no oom | no disk io scream | just cpu | who cat | who grep | who sort -u | wc -l
Member
Have you checked—no wait—did you look at—actually the provider might be—no, hear me out—sometimes these hosts run their own backup schedules—without telling you—midnight to 4AM is prime real estate for them—check your process list next time it happens—ps aux—grep for anything you didn't spawn—
Just use `atop` and stop guessing | skill issue | your cron audit is cute but you're hunting squirrels while elephants wear party hats at 3AM | | provider backup agents love "low traffic windows" that happen to be YOUR sleep window | check for `acronis` `veeam` `backupagent` or whatever OVHcloud slapped on the image | it's always the image
Member
$ ping -c 10 backup.OVHcloud.internal
PING backup.OVHcloud.internal (10.64.128.5): 56 data bytes
64 bytes from 10.64.128.5: icmp_seq=0 ttl=62 time=0.847 ms
64 bytes from 10.64.128.5: icmp_seq=1 ttl=62 time=0.912 ms
64 bytes from 10.64.128.5: icmp_seq=2 ttl=62 time=12.430 ms <-- spike
64 bytes from 10.64.128.5: icmp_seq=3 ttl=62 time=0.891 ms
traceroute to backup.OVHcloud.internal
1 10.0.0.1 (gateway) 0.234 ms
2 10.64.128.5 (backup) 0.847 ms
route via internal adds ~11ms during sync windowSpike correlates with your 3AM. Route via backup subnet adds jitter, not baseline latency. Check for agent process binding to that host.
Member
Hey folks | gonna be real | I had this exact thing on InterServer last year | super stoked to help | their "invisible" backup agent was eating 4 cores to dedupe my 2GB of logs | opened ticket | they moved me to 2AM window | still sucked but I could sleep | check `systemctl list-units --type=service | grep -I backup` | or just `ps` and look for weird | good luck