Bug 727677

Summary:	autofs-5.0.1-0.rc2.156 now displays hostnames instead of IP addresses under /proc/mounts
Product:	Red Hat Enterprise Linux 5	Reporter:	Ricky Nelson <rnelson>
Component:	autofs	Assignee:	Ian Kent <ikent>
Status:	CLOSED DUPLICATE	QA Contact:	yanfu,wang <yanwang>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	5.7	CC:	ikent
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-08-03 02:04:48 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 Ricky Nelson 2011-08-02 20:28:48 UTC

Description of problem:
/proc/mounts and 'df' show NFS mount points with their respective IP address instead of the hostname after updating autofs under RHEL 5. The issue is not seen under RHEL 4 or RHEL 6 after updating their respective autofs packages.

Version-Release number of selected component (if applicable):
Pre upgrade:  autofs-5.0.1-0.rc2.143.el5_5.6.x86_64
Post upgrade: autofs-5.0.1-0.rc2.156.el5.x86_64

How reproducible:
Setup automount with NFS mount points. Cat out /proc/mounts or look at the output from 'df' to see that under version 143 of autofs the hostname is shown. Under version 156 the IP address is shown.

Additional info:
There is no change in behavior within the RHEL 6 updated autofs packages. I may be a bit off, but looking at the changelog under autofs-5.0.1-0.rc2.156.el5 I found the following:

* Mon Mar 28 2011 Ian Kent <ikent> - 5.0.1-0.rc2.151.el5
- bz629357 - [RFE] Automounter debug mode should include IP addresses
  - include ip address in debug logging.
  - mount using address for rr.

But this was replicated under RHEL 6 with BZ 629359, so I'm starting to think that neither of the above patches were the cause:

RHEL 5 BZ: https://bugzilla.redhat.com/show_bug.cgi?id=629357
RHEL 6 BZ: https://bugzilla.redhat.com/show_bug.cgi?id=629359

By downgrading the autofs package from the 156 version to the 143 version the original behavior was seen again. Since we don't see this under RHEL 6, perhaps this was an unintentional error?

Comment 1 Ian Kent 2011-08-03 02:04:48 UTC

(In reply to comment #0)
> Description of problem:
> /proc/mounts and 'df' show NFS mount points with their respective IP address
> instead of the hostname after updating autofs under RHEL 5. The issue is not
> seen under RHEL 4 or RHEL 6 after updating their respective autofs packages.

Yes, that's right.

snip ...

> Additional info:
> There is no change in behavior within the RHEL 6 updated autofs packages. I may
> be a bit off, but looking at the changelog under autofs-5.0.1-0.rc2.156.el5 I
> found the following:
> 
> * Mon Mar 28 2011 Ian Kent <ikent> - 5.0.1-0.rc2.151.el5
> - bz629357 - [RFE] Automounter debug mode should include IP addresses
>   - include ip address in debug logging.
>   - mount using address for rr.
> 
> But this was replicated under RHEL 6 with BZ 629359, so I'm starting to think
> that neither of the above patches were the cause:
> 
> RHEL 5 BZ: https://bugzilla.redhat.com/show_bug.cgi?id=629357
> RHEL 6 BZ: https://bugzilla.redhat.com/show_bug.cgi?id=629359
> 
> By downgrading the autofs package from the 156 version to the 143 version the
> original behavior was seen again. Since we don't see this under RHEL 6, perhaps
> this was an unintentional error?

Sorry you have had to spend time reporting this.

It was a mistake on my part due to an incorrect check for the
presence of multiple dns name records.

Unfortunately our internal testing discovered it way too late
to include the fix in the release.

We have another customer for which this is something of a
problem and I will be building a test package and putting
it on people.redhat.com today.

*** This bug has been marked as a duplicate of bug 725536 ***