Difference between revisions of "File descriptor"
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[[wikipedia:File descriptor]] | [[wikipedia:File descriptor]] | ||
| − | * <code>cat /proc/sys/fs/file-nr</code> | + | * <code>cat [[/proc/sys/fs/]]file-nr</code> |
* <code>cat /proc/sys/fs/file-max</code> | * <code>cat /proc/sys/fs/file-max</code> | ||
| + | echo "" > "/proc/$pid/fd/$fd" | ||
| + | |||
| + | |||
| + | 0 [[stdin]] | ||
| + | [[1]] [[stdout]] | ||
| + | [[2]] [[stderr]] | ||
| + | |||
| + | |||
| + | Open YOUR_FILE_TO_READ as file descriptor 3 for reading: | ||
| + | [[exec]] 3< YOUR_FILE_TO_READ | ||
| + | |||
| + | |||
| + | file descriptor 2342543535 [[out of range]] | ||
| + | |||
== Related terms == | == Related terms == | ||
* [[Zabbix agent]] file descriptor monitorization | * [[Zabbix agent]] file descriptor monitorization | ||
| Line 10: | Line 23: | ||
* [[Python]]: <code>[[os]].close(fd)</code> | * [[Python]]: <code>[[os]].close(fd)</code> | ||
* [[Resource starvation]] | * [[Resource starvation]] | ||
| + | * <code>[[sysctl]] fs.file-max</code> | ||
| + | * [[2]]>[[&1]] | ||
| + | * [[Amazon EFS quotas]] | ||
| + | * [[geth --fdlimit]] | ||
| + | * <code>[[/etc/security/limits.conf]]</code> | ||
== See also == | == See also == | ||
| + | * {{fd}} | ||
| + | * {{stdin}} | ||
* {{files}} | * {{files}} | ||
[[Category:Linux]] | [[Category:Linux]] | ||
Latest revision as of 15:23, 25 October 2024
cat /proc/sys/fs/file-nrcat /proc/sys/fs/file-max
echo "" > "/proc/$pid/fd/$fd"
0 stdin 1 stdout 2 stderr
Open YOUR_FILE_TO_READ as file descriptor 3 for reading: exec 3< YOUR_FILE_TO_READ
file descriptor 2342543535 out of range
Related terms[edit]
- Zabbix agent file descriptor monitorization
- inode
- Python:
os.close(fd) - Resource starvation
sysctl fs.file-max- 2>&1
- Amazon EFS quotas
- geth --fdlimit
/etc/security/limits.conf
See also[edit]
- File descriptor,
/etc/security/limits.conf - Standard streams:
/dev/stdin,/dev/stdout,/dev/stderr,/dev/null, File descriptor,set -x, 2>&1, stdbuf - file, File system, directory,
touch,mkdir,ls,lntruncate,fallocate,split,stat, inode, File descriptor, superblock, block size (blockdev),fuser,lsof,scrub,chattr, ulimit (nofiles),cp,mv,file (command),mkfifo,chmod
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