Scheduled Jobs
3 incident problems about Scheduled Jobs. Start with the reviewed ones.
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How to split Linux failures by systemd, permission, and filesystem signalsAn InfraTree guide that lays out the first signals to check, the CLI verification order, common misdiagnoses, and a safe recovery path when a service fails but you need to isolate whether the cause is a systemd unit, permission, inode, mount, or process.Linux3 min readWhen sudo works in the shell but fails under automationAn InfraTree guide that lays out the first signals to check, the CLI verification order, common misdiagnoses, and a safe recovery path when only automation jobs fail because of TTY, sudoers, environment reset, or service user differences.Linux3 min readWhen permissions are fixed but only new directories are created with the wrong groupAn InfraTree guide that lays out the first signals to check, the CLI verification order, common misdiagnoses, and a safe recovery path when existing file permissions are correct but group inheritance breaks for newly created files and directories.Linux3 min read
Recommended problems
Reviewed problems first, then problems with detailed scenarios.
All problems (3)
command not found only under cron: the script works when run by handcommand not found only (404 and Rewrite Mismatch) is a hands-on troubleshooting drill. cron runs jobs with a minimal PATH. AWS scheduled-jobs needs to be checked by narrowing scope, recent change, and the current live signal before rollback. 실무에서는 scheduled-jobs 문제를 볼 때 서비스 로그...ReviewedLinuxBeginner3 minFreeLINUX-1196Systemd timer runs but the wrapped script sees a different working directory than the shell versionA maintenance job appears healthy under manual testing, yet fails under the timer because the script expects relative paths from a different working directory.LinuxIntermediate17 minProLINUX-1183Cron job works in shell but fails at nightA community script looks healthy in manual tests. Overnight runs fail because cron does not provide the PATH and locale the script assumes.LinuxIntermediate16 minPro