Bug 175283

Summary: FTP to NFS Client hangs if NFS server is down
Product: Red Hat Enterprise Linux 2.1 Reporter: shan <shanmuganathan.k>
Component: wu-ftpdAssignee: Maros Barabas <mbarabas>
Status: CLOSED WONTFIX QA Contact: David Lawrence <dkl>
Severity: high Docs Contact:
Priority: medium    
Version: 2.1   
Target Milestone: ---   
Target Release: ---   
Hardware: ia64   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2007-10-19 19:20:07 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Sysreport none

Description shan 2005-12-08 15:12:04 UTC 
Description of problem:
FTP to NFS Client ( RHEL 2.1 -- ia64 --WU-ftpd ) hangs if NFS server is down.
Telnet happens Fine in this situation , also here there is no need for the 
exported file system available   for FTP to function fine.

In case of  Vsftpd (RHEL -4)  ftp to the NFS client ( RHEL 4 --VSFTPD)functions 
fine  even when the NFS server is down.



Version-Release number of selected component (if applicable):	wu-ftpd-2.6.1-20


How reproducible:

Case 1. 
Mounted the /tmp folder of the NFS server (RHEL 4) to a NFS Client (RHEL 2.1). 
Shutdown the NFS server (RHEL 4) , FTP to NFS Client( RHEL 2.1) failed , with 
Session time Out message. 
Note :-In the tested Lab system , RHEL 2.1 is with the latest versions of nfs-
utils , portmap , wu-ftpd for RHEL 2.1. 
Case 2. 
Mounted the /tmp folder of the NFS server (RHEL 2.1) to a NFS Client (RHEL 4). 
Shutdown the NFS server (RHEL 2.1) , FTP to NFS Client( RHEL 4) is happening 
fine . 


  
Actual results:When the NFS server is down FTP to WU-FTPD will fail where as 
FTP  to VSFTPD will work fine.


Expected results:FTP to WU-ftpd should work similar to VSftpd , even when the 
NFS server is down as there is no relation between the exported file system 
(/tmp) and the ftp login.


Additional info: RHEL 2.1 (wu-ftpd) packages is installed and tested with the 
latest updates version available in the rhn.redhat.com 

Hence a wu-ftpd version or any other FTP package is needed for RHEL 2.1 in 
which the ftp wonât get affected due to the NFS server in-availability.
Comment 1 shan 2005-12-08 15:20:00 UTC 
Created attachment 122032 [details]
Sysreport
Comment 2 RHEL Program Management 2007-10-19 19:20:07 UTC 
This bug is filed against RHEL2.1, which is in maintenance phase.
During the maintenance phase, only security errata and select mission
critical bug fixes will be released for enterprise products.  Since
this bug does not meet that criteria, it is now being closed.

For more information of the RHEL errata support policy, please visit:
http://www.redhat.com/security/updates/errata/

If you feel this bug is indeed mission critical, please contact your
support representative.  You may be asked to provide detailed
information on how this bug is affecting you.