Bug 262861

Summary: exportfs does not synchronize xtab with exports file
Product: [Fedora] Fedora Reporter: Mijo Safradin <msafradin>
Component: nfs-utilsAssignee: Steve Dickson <steved>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: medium    
Version: 7   
Target Milestone: ---   
Target Release: ---   
Hardware: other   
OS: Linux   
Whiteboard:
Fixed In Version: 1.1.0-4.fc7 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-10-29 19:02:24 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Flags
Purposed patch none

Description Mijo Safradin 2007-08-29 10:27:12 UTC 
Description of problem:
Running "exportfs -av" or "exportfs -rv" does not synchronize /var/lib/nfs/xtab
with /etc/exports as it should according to the man page of exportfs.

The xtab remains always empty.

Version-Release number of selected component (if applicable):
$ rpm -qa | grep nfs
nfs-utils-lib-1.0.8-8.fc7
nfs-utils-1.0.12-4.fc7

How reproducible:

Steps to Reproduce:
1. export directory (/etc/export)
2. mount direcotry (other machine)
3. run exportfs
  
Actual results:
$ cat /etc/exports 
/M_EXPORT *(rw,sync,root_squash)
$ /etc/init.d/nfs restart
Shutting down NFS mountd:                                  [  OK  ]
Shutting down NFS daemon:                                  [  OK  ]
Shutting down NFS quotas:                                  [  OK  ]
Shutting down NFS services:                                [  OK  ]
Starting NFS services:                                     [  OK  ]
Starting NFS quotas:                                       [  OK  ]
Starting NFS daemon:                                       [  OK  ]
Starting NFS mountd:                                       [  OK  ]
$ exportfs -rv
exporting *:/M_EXPORT
$ echo $?
0
$ cat /var/lib/nfs/xtab
$

xtab is empty ..

Expected results:
cat /var/lib/nfs/xtab
... some conent about exported nfs directories

Additional info:
I red the man page of exportfs. From this I would expect some content for the
xtab file. Is this file simply not used anymore? If so, then a change of the
man page would be needed.

I searched also for other bugzillas about this problem, and I found only one ... 
that mentioned this behavior at one comment. See bugzilla #165346 Comment #6.
Comment 1 Steve Dickson 2007-09-14 17:37:04 UTC 
Created attachment 196031 [details]
Purposed patch

Interesting... It turns out that when a new style of in-kernel
caching was added to both exportfs and mountd, the /var/lib/nfs/xtab
file is no longer used. The /var/lib/nfs/etab now the where 
the export information is kept. 

I've sent the attached patch to the maintainers for comment.
Comment 2 Fedora Update System 2007-09-18 22:31:18 UTC 
nfs-utils-1.1.0-4.fc7 has been pushed to the Fedora 7 testing repository.  If problems still persist, please make note of it in this bug report.
Comment 3 Fedora Update System 2007-10-29 19:02:22 UTC 
nfs-utils-1.1.0-4.fc7 has been pushed to the Fedora 7 stable repository.  If problems still persist, please make note of it in this bug report.