Bug 510117

Summary:	crond running run-parts twice
Product:	[Fedora] Fedora	Reporter:	Valdis Kletnieks <valdis.kletnieks>
Component:	cronie	Assignee:	Marcela Mašláňová <mmaslano>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	rawhide	CC:	mmaslano, pertusus, tmraz
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-07-08 07:30:47 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Valdis Kletnieks 2009-07-07 18:36:46 UTC

Description of problem:
Although I have only one entry for 'cron.hourly' in /etc/crontab, it's running it twice for some reason:

% cat /etc/crontab
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
HOME=/

# run-parts
01 * * * * root run-parts /etc/cron.hourly
00 0 * * * root run-parts /etc/cron.midnight
02 2 * * * root ionice -c3 run-parts /etc/cron.daily
42 3 * * 0 root run-parts /etc/cron.weekly
42 4 1 * * root run-parts /etc/cron.monthly
% cat /var/log/cron
Jul  7 10:24:54 turing-police crond[2728]: (CRON) STARTUP (1.3)
Jul  7 10:24:54 turing-police crond[2728]: (CRON) INFO (running with inotify support)
Jul  7 11:01:01 turing-police CROND[14343]: (root) CMD (run-parts /etc/cron.hourly)
Jul  7 11:01:01 turing-police CROND[14344]: (root) CMD (run-parts /etc/cron.hourly)
Jul  7 11:01:01 turing-police run-parts(/etc/cron.hourly)[14343]: starting 0anacron
Jul  7 11:01:01 turing-police run-parts(/etc/cron.hourly)[14344]: starting 0anacron
Jul  7 11:01:01 turing-police run-parts(/etc/cron.hourly)[14360]: finished 0anacron
Jul  7 11:01:01 turing-police run-parts(/etc/cron.hourly)[14362]: finished 0anacron
Jul  7 11:01:01 turing-police run-parts(/etc/cron.hourly)[14343]: starting mcelog.cron
Jul  7 11:01:01 turing-police run-parts(/etc/cron.hourly)[14344]: starting mcelog.cron
Jul  7 11:01:02 turing-police run-parts(/etc/cron.hourly)[14377]: finished mcelog.cron
Jul  7 11:01:02 turing-police run-parts(/etc/cron.hourly)[14378]: finished mcelog.cron
Jul  7 12:01:01 turing-police CROND[18279]: (root) CMD (run-parts /etc/cron.hourly)
Jul  7 12:01:01 turing-police CROND[18278]: (root) CMD (run-parts /etc/cron.hourly)
Jul  7 12:01:01 turing-police run-parts(/etc/cron.hourly)[18278]: starting 0anacron
Jul  7 12:01:01 turing-police run-parts(/etc/cron.hourly)[18279]: starting 0anacron
Jul  7 12:01:01 turing-police run-parts(/etc/cron.hourly)[18299]: finished 0anacron
Jul  7 12:01:01 turing-police run-parts(/etc/cron.hourly)[18301]: finished 0anacron
Jul  7 12:01:01 turing-police run-parts(/etc/cron.hourly)[18279]: starting mcelog.cron
Jul  7 12:01:01 turing-police run-parts(/etc/cron.hourly)[18278]: starting mcelog.cron
Jul  7 12:01:01 turing-police run-parts(/etc/cron.hourly)[18316]: finished mcelog.cron
Jul  7 12:01:01 turing-police run-parts(/etc/cron.hourly)[18317]: finished mcelog.cron
% ps ax|grep 'cr[o]n'
  2728 ?        Ss     0:00 crond

One cron running, one entry in /etc/crontab, but it's getting run twice.  And it's not just a double-logging issue (note the different PIDs), I'm seeing e-mail from both mcelog.cron runs, 2 per hour.

Oddly enough, this *only* seems to affect the cron.hourly - the other run-parts calls in crontab are only run once.  Perhaps a "first entry in crontab" bug?

Not sure how long it's been doing this - I only noticed it because Bug #507026 was causing mcelog.cron to generate e-mail outputs, and my cron logs only go back to June 1.

Version-Release number of selected component (if applicable):
cronie-1.3-2.fc12.x86_64

How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

Comment 1 Marcela Mašláňová 2009-07-08 07:30:47 UTC

Since F-11 are hourly executed from /etc/cron.d/0hourly and /etc/crontab is empty in default installation. 

So you need remove /etc/cron.d/0hourly job or your line:
"01 * * * * root run-parts /etc/cron.hourly"

Anyway I should document it in man pages.

Comment 2 Valdis Kletnieks 2009-07-08 17:06:59 UTC

Damn.  I must have missed that change in the release notes.

Comment 3 Marcela Mašláňová 2009-07-09 11:44:36 UTC

Damn, I didn't document enough. I'm still working so hopefully the next release will be fully documented and with release notes.