Linuxexit code > 0
Too many open files
$Error: accept tcp [::]:80: accept4: too many open files
Analysis
The process or the system has reached the limit of open file descriptors.
Common Triggers
- ●High-traffic servers not configured for high concurrency.
- ●Resource leaks (processes not closing files/sockets).
Debug Checks
- $Check current limit:
ulimit -n. - $See open files for a PID:
ls /proc/<pid>/fd | wc -l.
Resolution
1
Increase ulimit:
ulimit -n 65535 (temp) or edit /etc/security/limits.conf (perm).2
Fix file/socket leaks in the application code.
Metadata
- Tool
- Linux
- Severity
- High
- Tags
- #linux#performance#limits