Bug 593378

Summary: If maps include both file and nis maps, included nis maps which worked on RHEL 5.3 no longer work on RHEL 5.4
Product: Red Hat Enterprise Linux 5 Reporter: Sachin Prabhu <sprabhu>
Component: autofsAssignee: Ian Kent <ikent>
Status: CLOSED ERRATA QA Contact: Petr Beňas <pbenas>
Severity: medium Docs Contact:
Priority: high    
Version: 5.4CC: ikent, kzhang, pbenas, pstehlik, tao
Target Milestone: rcKeywords: Regression, ZStream
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: autofs-5.0.1-0.rc2.144.el5 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 594565 (view as bug list) Environment:
Last Closed: 2011-07-21 08:40:26 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:
Bug Depends On:    
Bug Blocks: 594565, 642612, 707606    
Attachments:
Description Flags
Patch - fix negative cache included map lookup none

Description Sachin Prabhu 2010-05-18 16:46:52 UTC 
Reproducer:

auto.master contains:

/data  /etc/auto.data

/etc/auto.data contains:

+/etc/maps/auto.data
+auto.data

Included map /etc/maps/auto.data contains:

datamount_local	-rw,soft,intr	10.33.1.41:/exports/datamount_local

Included nis map auto.data contains:

# ypcat auto.data
-rw,soft,intr 10.33.1.41:/exports/datamount_nis


autofs will correctly mount /data/datamount_local which it picks from the map /etc/maps/auto.data. However it will not mount /data/datamount_nis listed in the nis maps. 

# cd /data/datamount_local
# cd /data/datamount_nis
-bash: cd: /data/datamount_nis: No such file or directory

/data/datamount_nis will mount correctly from the nis map if the included /etc/maps/auto.data is commented out.

If instead of the nis map, another file based map is included, the auto mounts work as expected.

This is a regression since this functionality worked fine on 
autofs-5.0.1-0.rc2.102.x86_64.rpm

The following versions display this problem
autofs-5.0.1-0.rc2.131.el5
autofs-5.0.1-0.rc2.143.el5
Comment 2 Ian Kent 2010-05-19 04:10:08 UTC 
Using the information in comment #0 this issue was easily
duplicated.

I believe it is due to changes made to fix the negative
caching of non-existent map keys.
Comment 3 Ian Kent 2010-05-19 07:47:33 UTC 
Created attachment 415043 [details]
Patch - fix negative cache included map lookup
Comment 4 Ian Kent 2010-05-19 07:51:53 UTC 
A test build which includes the above patch has been done.
It is located at:
http://people.redhat.com/~ikent/autofs-5.0.1-0.rc2.143.bz593378.1.el5

Please test this package and report results.
Comment 6 Ian Kent 2010-05-20 12:13:53 UTC 
I can't identify any side effects from this change.
I've run our regression tests against the change for i386 and
x86_64 only without any unexplained fails. I've also added a
test based on the reproducer in comment #0.

So the bug has been placed in MODIFIED state.
Comment 18 Petr Beňas 2011-04-20 14:28:30 UTC 
Reproduced in autofs-5.0.1-0.rc2.131.el5 and verified in autofs-5.0.1-0.rc2.144.el5.
Comment 19 errata-xmlrpc 2011-07-21 08:40:26 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-1079.html
Comment 20 errata-xmlrpc 2011-07-21 12:33:45 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-1079.html