Public bug reported:
Situation: a single log file (no earlier rotates) and a logrotate status
that says it is time to rotate.
# ls -l /var/log/mail.log*
-rw-r- 1 syslog adm 287 May 16 11:27 /var/log/mail.log
# cat /var/lib/logrotate/status
logrotate state -- version 2
/var/log/mail.log 2012-3-31
# cat /tmp/test.conf
/var/log/mail.log
{
rotate 4
weekly
missingok
notifempty
compress
delaycompress
sharedscripts
postrotate
reload rsyslog /dev/null 21 || true
endscript
}
logrotate in debug mode will fail, because it simulates removing a non-
existing mail.log.5.gz:
# logrotate -d /tmp/test.conf; echo $?
reading config file /tmp/test.conf
reading config info for /var/log/mail.log
Handling 1 logs
rotating pattern: /var/log/mail.log
weekly (4 rotations)
empty log files are not rotated, old logs are removed
considering log /var/log/mail.log
log needs rotating
rotating log /var/log/mail.log, log-rotateCount is 4
dateext suffix '-20140516'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
previous log /var/log/mail.log.1 does not exist
renaming /var/log/mail.log.4.gz to /var/log/mail.log.5.gz (rotatecount 4,
logstart 1, i 4),
renaming /var/log/mail.log.3.gz to /var/log/mail.log.4.gz (rotatecount 4,
logstart 1, i 3),
renaming /var/log/mail.log.2.gz to /var/log/mail.log.3.gz (rotatecount 4,
logstart 1, i 2),
renaming /var/log/mail.log.1.gz to /var/log/mail.log.2.gz (rotatecount 4,
logstart 1, i 1),
renaming /var/log/mail.log.0.gz to /var/log/mail.log.1.gz (rotatecount 4,
logstart 1, i 0),
renaming /var/log/mail.log to /var/log/mail.log.1
running postrotate script
running script (multiple) with arg /var/log/mail.log
:
reload rsyslog /dev/null 21 || true
removing old log /var/log/mail.log.5.gz
error: error opening /var/log/mail.log.5.gz: No such file or directory
1
logrotate's real behaviour handles this situation correctly:
# logrotate -v /tmp/test.conf; echo $?
reading config file /tmp/test.conf
reading config info for /var/log/mail.log
Handling 1 logs
rotating pattern: /var/log/mail.log
weekly (4 rotations)
empty log files are not rotated, old logs are removed
considering log /var/log/mail.log
log needs rotating
rotating log /var/log/mail.log, log-rotateCount is 4
dateext suffix '-20140516'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
previous log /var/log/mail.log.1 does not exist
renaming /var/log/mail.log.4.gz to /var/log/mail.log.5.gz (rotatecount 4,
logstart 1, i 4),
old log /var/log/mail.log.4.gz does not exist
renaming /var/log/mail.log.3.gz to /var/log/mail.log.4.gz (rotatecount 4,
logstart 1, i 3),
old log /var/log/mail.log.3.gz does not exist
renaming /var/log/mail.log.2.gz to /var/log/mail.log.3.gz (rotatecount 4,
logstart 1, i 2),
old log /var/log/mail.log.2.gz does not exist
renaming /var/log/mail.log.1.gz to /var/log/mail.log.2.gz (rotatecount 4,
logstart 1, i 1),
old log /var/log/mail.log.1.gz does not exist
renaming /var/log/mail.log.0.gz to /var/log/mail.log.1.gz (rotatecount 4,
logstart 1, i 0),
old log /var/log/mail.log.0.gz does not exist
log /var/log/mail.log.5.gz doesn't exist -- won't try to dispose of it
renaming /var/log/mail.log to /var/log/mail.log.1
running postrotate script
0
Summary:
# logrotate -d /tmp/test.conf; echo $?
[..]
removing old log /var/log/mail.log.5.gz
error: error opening /var/log/mail.log.5.gz: No such file or directory
exitcode: 1
# logrotate -v /tmp/test.conf; echo $?
[..]
log /var/log/mail.log.5.gz doesn't exist -- won't try to dispose of it
exitcode: 0
1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -
About Ubuntu
Description:Ubuntu 12.04.3 LTS
Release:12.04
2) The version of the package you are using, via 'apt-cache policy pkgname' or
by checking in Software Center
logrotate:
Installed: 3.7.8-6ubuntu5
Candidate: 3.7.8-6ubuntu5
3) What you expected to happen
debug mode should not output an error and should have exitcode 0
4) What happened instead
debug mode prints an error and has exitcode 1
** Affects: logrotate (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1320201
Title:
behaviour in debug mode doesn't match real behaviour
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