Bug 757766

Summary:	ntp running multiple instances
Product:	Red Hat Enterprise Linux 5	Reporter:	Mohammed Arafa <bugzilla>
Component:	ntp	Assignee:	Miroslav Lichvar <mlichvar>
Status:	CLOSED NOTABUG	QA Contact:	qe-baseos-daemons
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	5.7
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-11-29 17:17:47 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Mohammed Arafa 2011-11-28 16:35:10 UTC

Description of problem:
it is possible to run ntp service multiple times.

i have verified this on rhel5.7.

i ran /etc/init.d/ntp status - verified it was up and running
i ran ps aux | grep ntp - observed only 1 instance of ntp running
i next ran /etc/init.d/ntp start - it ran without problems giving a green OK status
i checked again and found ps aux | grep ntp showed a 2nd ntp running
this apparently can go on for quite a bit

Version-Release number of selected component (if applicable):


How reproducible:
everytime

Steps to Reproduce:
1. /etc/init.d/ntp start
2. ps aux | grep ntp
3. /etc/init.d/ntp start
  
Actual results:
multiple instances of ntp running

Expected results:
only a single instance of ntp running

Additional info:

Comment 1 Miroslav Lichvar 2011-11-29 17:17:47 UTC

The ntpd process forks when it resolves names of the servers specified in ntp.conf to avoid blocking, so this is expected behavior.

Comment 2 Mohammed Arafa 2011-12-12 12:03:10 UTC

no no - i am not talking about forking

while true do
/etc/init.d/ntp start
done

_can go on forever!_


it apparently doesnt check to see if ntp service is started or if a pid file was created for the service.

Comment 3 Miroslav Lichvar 2011-12-12 12:40:42 UTC

With what version of the ntp package is that? I don't see it with ntp-4.2.2p1-15.el5, /etc/init.d/ntp start is a no-op.