Public bug reported: Running incron daemon observing single directory for several users consumes all available inotify watchers.
Running incrontab -l command shows following watchers: # IN_ALL_EVENTS flags app /srv/docker/image IN_CREATE,IN_MOVED_TO,recursive=false sudo docker -H unix:///var/run/docker-<user_name_1>.sock load -q -i $@/$# /srv/docker/image IN_CREATE,IN_MOVED_TO,recursive=false sudo docker -H unix:///var/run/docker-<user_name_2>.sock load -q -i $@/$# /srv/docker/image IN_CREATE,IN_MOVED_TO,recursive=false sudo docker -H unix:///var/run/docker-<user_name_3>.sock load -q -i $@/$# /srv/docker/image IN_CREATE,IN_MOVED_TO,recursive=false sudo docker -H unix:///var/run/docker-<user_name_4>.sock load -q -i $@/$# /srv/docker/image IN_CREATE,IN_MOVED_TO,recursive=false sudo docker -H unix:///var/run/docker-dperisic.sock load -q -i $@/$# and running ls -la on /srv/docker/image directory shows: total 1752956 drwxr-xr-x 2 admin admin 4096 sij 11 2024 . drwxr-xr-x 3 root root 4096 sij 3 2024 .. -rw------- 1 admin admin 1795014144 sij 11 2024 peta_dev.tar.gz Only one archive in directory. Yet running the inoty watcher counting script from: https://github.com/fatso83/dotfiles/blob/master/utils/scripts/inotify-consumers shows that icron's daemon consumes all available watchers: INOTIFY INSTANCES WATCHES PER COUNT PROCESS PID USER COMMAND ------------------------------------------------------------ 1048514 3 1006 root /usr/sbin/incrond <other users watches account for 438 wathces - reminder of list skipped for privacy> 1048952 WATCHES TOTAL COUNT This is status of incron daemon from systemctl: ● incron.service - file system events scheduler Loaded: loaded (/lib/systemd/system/incron.service; enabled; vendor preset: enabled) Active: active (running) since Fri 2024-10-11 14:47:50 CEST; 2h 32min ago Docs: man:incrond(8) Main PID: 1006 (incrond) Tasks: 5 (limit: 154367) Memory: 34.6G CGroup: /system.slice/incron.service ├─ 1006 /usr/sbin/incrond ├─154033 [incrond] ├─154034 [incrond] └─154035 [incrond] oct 11 17:19:53 server02 incrond[1006]: PATH (./usr/lib/x86_64-linux-gnu/libc.so.6) FILE () EVENT (IN_ACCESS) oct 11 17:19:53 server02 incrond[1006]: (admin) CMD ( flags app) oct 11 17:19:53 server02 incrond[1006]: PATH (./usr/lib/x86_64-linux-gnu) FILE (libc-2.31.so) EVENT (IN_ACCESS) oct 11 17:19:53 server02 incrond[1006]: (admin) CMD ( flags app) oct 11 17:19:53 server02 incrond[1006]: PATH (./usr/lib/x86_64-linux-gnu/libc.so.6) FILE () EVENT (IN_ACCESS) oct 11 17:19:53 server02 incrond[1006]: (admin) CMD ( flags app) oct 11 17:19:53 server02 incrond[1006]: PATH (./usr/lib/x86_64-linux-gnu) FILE (libc-2.31.so) EVENT (IN_ACCESS) oct 11 17:19:53 server02 incrond[1006]: (admin) CMD ( flags app) oct 11 17:19:53 server02 incrond[1006]: PATH (./usr/lib/x86_64-linux-gnu/libc.so.6) FILE () EVENT (IN_ACCESS) oct 11 17:19:53 server02 incrond[1006]: (admin) CMD ( flags app) oct 11 17:19:53 server02 incrond[1006]: PATH (./usr/lib/x86_64-linux-gnu) FILE (libc-2.31.so) EVENT (IN_ACCESS) oct 11 17:19:53 server02 incrond[1006]: (admin) CMD ( flags app) lis 11 17:19:53 server02 incrond[1006]: PATH (./usr/lib/x86_64-linux-gnu/libc.so.6) FILE () EVENT (IN_ACCESS) lis 11 17:19:53 server02 incrond[1006]: (admin) CMD ( flags app) This requires daemon restart every couple of days. ** Affects: incron (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2084267 Title: incron daemon consumes all inotify watchers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/incron/+bug/2084267/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
