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rawmain
Asked: 2020-03-06 21:59:38 +0800 CST

Why didn't crontab didn't run automatically to backup database with Barman?

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Operate user: barman

If run these 2 commands, it can work:

/usr/bin/barman cron
/usr/bin/barman backup pg

Set them to crontab:

crontab -e
* * * * * /usr/bin/barman cron
0 4 * * * /usr/bin/barman backup pg

Crontab service status:

systemctl status crond
● crond.service - Command Scheduler
   Loaded: loaded (/usr/lib/systemd/system/crond.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2020-02-21 10:40:58 JST; 2 weeks 0 days ago
 Main PID: 23099 (crond)
   CGroup: /system.slice/crond.service
           └─23099 /usr/sbin/crond -n

Localtime:

ls -l /etc/localtime
lrwxrwxrwx 1 root root 32 Mar 26  2019 /etc/localtime -> ../usr/share/zoneinfo/Asia/Tokyo

But it didn't run backup at 4 o'clock today. Why?

Add Test

Tested:

40 18 * * * /usr/bin/barman cron
41 18 * * * /usr/bin/barman backup pg

See log:

less /var/log/cron
...
Mar  6 18:40:02 server crond[23099]: (barman) RELOAD (/var/spool/cron/barman)
Mar  6 18:40:02 server CROND[13013]: (barman) CMD (/usr/bin/barman cron)
Mar  6 18:40:02 server CROND[13014]: (barman) CMD (  [ -x /usr/bin/barman ] && /usr/bin/barman -q cron)
Mar  6 18:40:02 server CROND[13015]: (root) CMD (/usr/lib64/sa/sa1 1 1)
Mar  6 18:41:01 server CROND[13117]: (root) CMD (/usr/lib64/sa/sa1 1 1)
Mar  6 18:41:01 server CROND[13119]: (barman) CMD (  [ -x /usr/bin/barman ] && /usr/bin/barman -q cron)
Mar  6 18:41:01 server CROND[13118]: (barman) CMD (/usr/bin/barman backup pg)

It seems the task started, but didn't backup database. If run /usr/bin/barman backup pg can do.

backup linux cron

1 Answers

  1. There has to be a new line after the last command. If you look at /var/log/cron or wherever your cron logs are kept, you'll see an error indicating this.

    To get the job to run, go into crontab -e and press ENTER at the end of the last line so that the cursor is on the next line and then save it. The last job will then run.

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