Bug 2378

Summary:	USR1 should be used instead of HUP for log rotation
Product:	[Retired] Red Hat Raw Hide	Reporter:	Jay Freeman <saurik>
Component:	apache	Assignee:	Nalin Dahyabhai <nalin>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	low
Version:	1.0	CC:	pekkas
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
URL:	http://www.apacheweek.com/tips/tips
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2000-11-04 11:04:35 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 Jay Freeman 1999-04-26 22:55:41 UTC

I was just readinga tip entitled "Rotating log files without
killing the transactions in progress" in apache week, and
was interested to read:

"Sending the parent Apache process a USR1 signal will make
it close the current log files, and re-open them, without
loosing any connections currently in progress. This should
be used instead of a HUP signal in any log rotation script."
(more information on the page this was taken from at
http://www.apacheweek.com/tips/tips)

I decided to go and see what I was currently using (and if
HUP, change it to USR1, add a script or something, etc.),
and noticed that the /etc/logrotate.d/apache file that comes
with rawhide was using HUP.  Might be nice if this were
changed (would probably involve a more complex system though
for the log rotation for the server though as mentioned in
the tip).

Comment 1 Cristian Gafton 1999-07-28 07:22:59 UTC

assigned to pbrown

Comment 2 Preston Brown 1999-08-27 15:11:59 UTC

this will be fixed in the next release (6.1).  Thanks for the report.

Comment 3 Pekka Savola 2000-11-04 11:03:13 UTC

In RHL 7.0, HUP is used instead of USR1.

---
/var/log/httpd/access_log {
    missingok
    postrotate
        /bin/kill -HUP `cat /var/run/httpd.pid 2>/dev/null` 2> /dev/null || true
    endscript
}
---

Comment 4 Nalin Dahyabhai 2001-01-11 22:34:30 UTC

Documentation at the Apache Group web site states that USR1 doesn't close child
processes, so there may be processes using the log files for an unknown amount
of time after the signal is delivered, which can lead to inconsistencies and
weirdness.

Comment 5 openshift-github-bot 2015-10-07 06:58:47 UTC

Commit pushed to master at https://github.com/openshift/origin

https://github.com/openshift/origin/commit/3ad2bce93189ff38474b5e644497a75f4bf1f944
Issue 2378 - Show TLS information for routes, create routes and routes/routename pages