Deleted files holding disk troubleshooting
df full but du clean? Unlinked files held open by a pid; restart it to reclaim
lsof +L1 | sort -k7 -rn | head
more troubleshooting
all 32 commands →
Disk I/O latency saturation
iostat -x 1 | awk '$1!~/^$/{print $1, "util="$NF, "await="$(NF-2)}'
Per-process block I/O top
biotop-bpfcc -C 5 1
Conntrack table full check
conntrack -L 2>/dev/null | wc -l; conntrack -S
Conntrack live events
conntrack -E -p tcp --dport 443 -o timestamp
Ephemeral port exhaustion
ss -tan state time-wait | wc -l; sysctl net.ipv4.ip_local_port_range